At GharPlans, we provide a complete premium roof waterproofing and heatproofing service for new houses, so a rooftop that isn't even finished yet is already protected against Pakistan's two biggest roof problems: monsoon leaks and summer heat. Rather than arranging separate contractors for waterproofing, insulation, and finishing, this service brings all three into one supervised roofing installation — genuine Sika waterproofing chemicals, fiber mesh reinforcement, and heat-insulation board, applied in the right order, on-site.

How Ghar Plans Delivers This Roofing Service

Every roof we treat goes through the same six-step process, in the same order, so the result is consistent whether it's a single house or part of a larger project. Here's exactly what happens at each stage:

Step 1: Roof Surface Cleaning. Before anything is applied, our team clears the roof surface of dust, loose particles, old debris, and any flaking material. This isn't a token wipe-down — a waterproofing coat can only bond as well as the surface underneath it, so any dust, oil, or loose material left behind becomes a weak point where the coating can peel or fail early. On a new house this stage is usually straightforward, since the roof hasn't been exposed to years of wear, but it's still the step that determines how well everything applied afterward performs.

Step 2: Sika Seal-105 Waterproofing Coating. Once the surface is clean, we apply Sika Seal-105, a two-component, polymer-modified cementitious waterproofing coating, in two coats, with the second applied at right angles to the first for full, jointless coverage. Because it's cement-based rather than a simple paint-on membrane, it bonds mechanically and chemically into the concrete itself, sealing hairline pores and cracks before they can ever become a leak, while still letting the roof breathe. This is the layer that does the actual job of keeping monsoon rain out of your roof slab, which is why it goes directly onto the bare concrete before anything else.

Step 3: Fiber Mesh Reinforcement. Next, we install fiber mesh across the treated surface, with particular attention to joints, corners, and transition points. Concrete and masonry expand and contract at slightly different rates as temperatures shift through the day and across seasons, and that mismatch is one of the most common reasons hairline cracks appear on a roof over time. Embedding fiber mesh into this layer lets the surface absorb that movement instead of splitting along a crack line, adding a second layer of protection that works alongside — not instead of — the waterproofing coat underneath it.

Step 4: Jumbolon Heat Insulation. With the roof waterproofed and reinforced, we fit Jumbolon heat insulation board across the surface. Jumbolon is a high-density XPS (extruded polystyrene) insulation board, supplied in 1, 1.5, and 2 inch thicknesses, and its job is to physically block heat from radiating down through the slab into the rooms below. This is the step with the biggest direct impact on indoor temperature during Lahore's and Punjab's peak summer months — a roof with waterproofing but no insulation stays watertight, but the top-floor rooms underneath it will still bake in the afternoon sun.

Step 5: Roof Packing. Once the insulation board is in place, we apply a protective packing layer over it. This layer protects the insulation from foot traffic and the elements during the rest of construction, and helps prepare an even, properly sloped surface for the final coat to go on top of. Think of it as the buffer between the insulation and the finishing layer — without it, the insulation board would sit directly exposed and more vulnerable to damage before the roof is even finished.

Step 6: Final Finish — White Chips or Sikalastic®-510. The last step is the finish coat, and it's the one decision we leave to you. White Chips is the more traditional, economical option — reflective stone chips are broadcast over the surface to bounce sunlight away rather than let the roof absorb it, a proven technique used widely across Pakistan. Sikalastic®-510 is Sika's liquid-applied “cool roof” coating, and it does two jobs at once: it adds a further layer of waterproofing on top of everything already applied, while also reflecting solar heat the same way White Chips does. It's generally the more premium of the two finishes, and where budget allows, it gives you extra waterproofing insurance on top of an already-waterproofed roof. Our team can talk you through which option makes more sense for your specific roof and budget.

Together, these six steps turn a bare concrete roof into one that's sealed against rain, reinforced against cracking, insulated against heat, and finished to reflect the sun — all before the house is even handed over.

Why Roof Waterproofing & Heatproofing Matter for a New House

Treating a roof at the new-house stage, before finishes and furniture are in place, is when waterproofing and heatproofing genuinely work best — the surface is bare, fully accessible, and not yet disrupting anyone's daily life. On the waterproofing side, a cementitious coat like Sika Seal-105 bonds directly into the concrete and seals hairline pores and cracks before they ever become a leak. On the heatproofing side, Jumbolon insulation board and a reflective final finish work together to stop heat from radiating through the slab, which is what keeps upper-floor rooms noticeably cooler through Lahore's and Punjab's peak summer months. Doing both together, in the right sequence, is the difference between a roof that needs attention again in a year or two and one that's genuinely built to last.

Where We Provide This Roofing Service

This roof waterproofing and heatproofing service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If your project is in one of these cities, our team can visit the site, assess the roof, and confirm timelines as part of your new house's construction schedule.

Why Choose Ghar Plans for This Roofing Service

Ghar Plans (GP Design and Construction) is a trusted Pakistani platform for house architectural design, interior design, construction, and building material supply, headquartered in Lahore with projects across cities throughout Punjab. Because we design and build houses ourselves, this isn't a service bolted onto a materials shop — it's carried out by a team that treats roofs as part of full house construction every day, using genuine Sika and Jumbolon products we also sell directly. That means fewer handoffs between your builder, your waterproofing contractor, and your material supplier, and one team accountable for how the roof performs once the house is lived in.

Frequently Asked Questions

What does this roof waterproofing and heatproofing service include?

It's a six-step, on-site process: roof surface cleaning, a Sika Seal-105 waterproofing coat, fiber mesh reinforcement, Jumbolon heat insulation, a protective roof packing layer, and a final White Chips or Sikalastic®-510 finish for heat reflection.

What's the difference between roof waterproofing and roof heatproofing?

Roof waterproofing seals the concrete slab against rain and moisture, using a cementitious coating and fiber mesh to close off cracks and pores. Roof heatproofing addresses temperature instead — insulation board and a reflective finish that stop the sun's heat from radiating through the slab into the rooms below. This service covers both in one process.

What does heatproofing of roof involve for a new house?

For a new house, heatproofing of roof means fitting Jumbolon heat insulation board over the waterproofed and mesh-reinforced surface, then finishing with either reflective White Chips or a Sikalastic®-510 cool-roof coating, so the roof reflects and resists heat rather than absorbing it.

Can this roofing service be used on an already-built, occupied house?

This service is designed for new houses at construction stage, when the roof surface is bare and fully accessible. Treating an already-finished, occupied roof usually involves extra steps to remove existing finishes first — if that's your situation, contact our team and we'll advise on the right approach for your roof.

What's the difference between White Chips and Sikalastic®-510 finish?

White Chips are reflective stone chips broadcast over the surface to bounce sunlight away — a proven, economical finish. Sikalastic®-510 is a liquid-applied Sika coating that adds an extra waterproofing layer on top of heat reflection, generally the more premium of the two options. Our team can help you choose based on your roof and budget.

Which cities does Ghar Plans provide this roofing service in?

This service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat.

How do I book this roof waterproofing and heatproofing service?

Message our team on WhatsApp or reach out through our Contact Us page with your city and house details, and we'll arrange a site visit and timeline as part of your construction schedule.

Protect Your New House From Day One

A roof treated before the house is even finished is a roof that won't need attention again for years. Message our team on WhatsApp or get in touch through our Contact Us page to schedule your roof waterproofing and heatproofing service in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.

If your roof is already leaking, cracking, or turning your top-floor rooms into an oven every summer, this is the service built for it. Whether you're searching for a waterproofing roof fix, a general service roofing option, or specifically roof heatproofing for a house that's already built, Ghar Plans' process for old houses starts by treating the roof you actually have — years of wear, old coatings, and all — rather than assuming a clean slate the way a brand-new roof allows.

How Ghar Plans Delivers This Roofing Service for Old Houses

Because an old roof isn't a blank slate, this process spends its first three steps on repair before any waterproofing coating goes on. Here's exactly what happens at each stage:

Step 1: Roof Grinding. Because this is an old house, we start with something the new-house process doesn't need: grinding the existing roof surface. This mechanically strips away weak or loose particles, old coating layers, and uneven high spots left over from however the roof was originally finished, so what's left is a sound, level surface rather than a patchwork of old material that a new coating would just be masking rather than bonding to.

Step 2: Deep Cleaning. With the surface ground back, the roof is deeply cleaned to clear away dust and debris from the grinding itself, along with anything else that's built up over the years. This is what gives the coats that follow the clean, bare surface they need for maximum bonding — skipping this step is one of the most common reasons a waterproofing job fails early on an older roof.

Step 3: Crack Filling & Repair. Every visible crack and damaged area is carefully filled and repaired at this stage, before any coating goes on. An old roof has usually had years of thermal expansion and contraction to develop hairline cracks and weak points, and sealing these individually first means the system that follows is going over a genuinely sound structure, not just painting over an active leak.

Step 4: Primer Coat. Next, we apply a primer coat — a very thin mixture of Sikalastic®-510 diluted with water — across the surface. Diluting the first pass this way lets it penetrate into the prepared concrete more effectively than a full-strength coat would, improving adhesion for everything applied on top of it.

Step 5: First Coat of Sikalastic®-510. With the primer in place, we apply the first full coat of Sikalastic®-510 evenly across the entire roof. Sikalastic®-510 is Sika's liquid-applied, heat-reflective “cool roof” coating, so from this point on the roof isn't just being waterproofed — it's also being built up into a system that reflects solar heat rather than absorbing it.

Step 6: Fiber Mesh Installation. On top of the first coat, we install high-quality fiber mesh across the surface. Embedding the mesh between coats rather than leaving it exposed lets it reinforce the waterproofing layer from within, giving the finished system better resistance to future cracking as the roof continues to expand and contract with the seasons.

Step 7: Final Coat of Sikalastic®-510. The process finishes with a final coat of Sikalastic®-510 applied over the fiber mesh, sealing it into the system completely. The result is a durable, heat-reflective, jointless waterproof layer built specifically for a roof that's already been through years of Pakistan's weather — not a quick patch, but a full restoration of the roof's protection.

Together, these seven steps take a roof that's already showing its age and rebuild its protection from the surface up — sealed against leaks, reinforced against future cracking, and reflective against the summer heat.

Why an Old Roof Needs a Different Process to a New One

It would be easy to assume waterproofing is waterproofing, whatever the roof's age — but an old roof and a new one are starting from genuinely different places. A new house's roof is bare concrete that's never been coated, so the process can go straight to sealing it. An old house's roof has usually been through years of sun, rain, and temperature swings, and may already carry an old coating, surface damage, or active leaks — which is exactly why this service starts with roofing repair work (grinding, cleaning, and crack sealing) before any Sikalastic®-510 goes on, and why the finished system is built up in coats around a layer of fiber mesh rather than applied in a single pass. If your house is still under construction rather than already built, see our roof waterproofing and heatproofing service for new houses instead.

Where We Provide This Roofing Service

This roof waterproofing and heatproofing service for old houses is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If your roof is showing damage or leaking in one of these cities, our team can visit, assess how much repair work it needs, and confirm a timeline.

Why Choose Ghar Plans for This Roofing Repair Service

Ghar Plans (GP Design and Construction) is a trusted Pakistani platform for house architectural design, interior design, construction, and building material supply, headquartered in Lahore with projects across cities throughout Punjab. Restoring an old, damaged roof takes more judgment than coating a new one — knowing how much grinding and crack repair a specific roof actually needs before waterproofing even starts — and that's assessment our team makes on site, backed by a company that works on full house construction and repair every day, not a one-size-fits-all coating job.

Frequently Asked Questions

What does this roof waterproofing and heatproofing service include for an old house?

Seven steps: grinding the existing roof surface, deep cleaning, filling and repairing cracks, a diluted Sikalastic®-510 primer coat, a full first coat of Sikalastic®-510, fiber mesh reinforcement, and a final coat of Sikalastic®-510 over the mesh.

What's the difference between this service for an old house and a new house?

An old house needs repair work first — grinding, cleaning, and crack sealing — because the roof has years of wear and may already have damage or an old coating. A new house's roof is bare, freshly cast concrete, so that service goes straight to waterproofing without the repair stage. The old-house process also uses Sikalastic®-510 throughout for both waterproofing and heat reflection, rather than the Sika Seal-105 and separate insulation board used on a new build.

What does roofing repair involve before waterproofing an old roof?

Roofing repair here means grinding away weak particles, old coating layers, and uneven areas, deep cleaning the surface, and then filling and sealing every visible crack — all done before any waterproofing coat is applied, so the coating goes onto a genuinely sound surface rather than over existing damage.

What does heatproofing of roof mean for an already-built house?

For an old house, heatproofing of roof comes from Sikalastic®-510 itself, which is a heat-reflective “cool roof” coating — so the same coats that waterproof the roof also reduce how much solar heat it absorbs, without needing a separate insulation board.

Why is Sikalastic®-510 used instead of a separate heat insulation board on an old roof?

Adding a rigid insulation board like Jumbolon works well on a new roof before any finishes go down, but it's a bigger job to retrofit onto an existing, occupied roof. Sikalastic®-510 delivers heat reflection and waterproofing together in one coated system, which fits an old roof's repair-and-recoat process more practically.

Which cities does Ghar Plans provide this roof waterproofing service in?

This service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat.

How do I book this service for my old house roof?

Message our team on WhatsApp or reach out through our Contact Us page with your city and a description of the roof's condition (leaks, visible cracks, age), and we'll arrange a site visit to assess how much repair work is needed.

Give Your Old Roof a Proper Restoration

A leaking or heat-soaked roof rarely fixes itself, and a quick coat over existing damage doesn't last. Message our team on WhatsApp or get in touch through our Contact Us page to schedule your roof waterproofing and heatproofing service in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.

Water damage rarely announces itself. It shows up years later as a stained ceiling, a crumbling patch of plaster, or a roof that's suddenly letting rain through — and by then, you're not just waterproofing anymore, you're paying for restoration: breaking out damaged finishes, drying out the structure, and redoing work that should have lasted. Ghar Plans' roofing service for new houses is built to make sure that bill never arrives, by treating the roof properly once, while it's still under construction.

How This Roofing Service Protects a New House

The whole point of doing this at construction stage is that it happens before there's anything to damage — no finishes to break out, no furniture in the way, no family living underneath while it's done. Here's exactly what happens:

Stage 1: Sika Seal-105 Waterproofing. Once the roof's structural work — what your team refers to as the lantern work — is complete, we apply Sika Seal-105 as the first waterproofing layer. This is a cementitious, polymer-modified coating that bonds directly into the bare concrete, sealing the pores and hairline gaps that would otherwise let seepage and moisture into the slab. Starting here, before anything else touches the roof, means the waterproofing is sealed against the structure itself rather than sitting on top of something else.

Stage 2: Diamond Jumbolon Heat Insulation. With the roof waterproofed, we install Diamond Jumbolon heat insulation board across the surface. Jumbolon is a high-density XPS insulation board that physically blocks heat from radiating down through the slab, which is what keeps the rooms underneath noticeably cooler through summer — this is the step that does the actual heatproofing of house temperature, not just the roof surface.

Stage 3: DPC Protective Mix with Sika-1. Finally, we apply a strong DPC (damp-proof) mix, integrated with Sika-1 waterproofing chemical, over the insulation layer. This creates a durable, protective surface that seals and levels the top of the insulation — and once it's cured, you can go straight to plaster, tiles, or whatever roof finish you've chosen, without touching the waterproofing underneath it again.

The result is a roof that's watertight and heat-resistant before a single tile or coat of plaster goes down — protection that's built into the structure, not added as an afterthought.

Why Preventing Water Damage Beats Restoring It

It's easy to think of waterproofing as optional — something you can always add later if a leak shows up. In practice, “later” usually means restoration: identifying where water has gotten in, removing damaged plaster or tiles, letting the structure dry out, and then redoing the waterproofing anyway, except now around finishes that are already in place and a family that's already living there. Doing it once, properly, while the roof is still bare and the house is still being built, is the only point in a house's life where this work is simple. That's the real reason this service exists on a new-house timeline rather than as a repair call.

Where We Provide This Roofing Service

This roof waterproofing and heatproofing service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If your house is under construction in one of these cities, our team can coordinate this stage directly with your build schedule.

Already Dealing With a Leak or Damage?

This service is built for a roof that's still under construction, with nothing to protect yet but bare concrete. If your house is already built and you're dealing with an existing leak, cracking, or heat coming through the roof, that's a different job — see our roof waterproofing, heatproofing & repair service for old houses instead, which is built specifically for restoring a roof that's already in use.

Why Choose Ghar Plans for This Roofing Service

Ghar Plans (GP Design and Construction) is a trusted Pakistani platform for house architectural design, interior design, construction, and building material supply, headquartered in Lahore with projects across cities throughout Punjab. Because we build houses ourselves, this service is scheduled as part of your actual construction timeline rather than as a separate contractor visit — and we supply genuine Sika Seal-105, Diamond Jumbolon, and Sika-1 directly, so the same materials this service uses are also available to you on their own.

Frequently Asked Questions

What does this new-house roof waterproofing and heatproofing service include?

Three stages applied once the roof's structural work is complete: a coat of Sika Seal-105 waterproofing, Diamond Jumbolon heat insulation board, and a DPC protective mix with Sika-1 over the insulation, leaving the roof ready for plaster or tile finishing.

How does waterproofing during construction prevent water damage and restoration costs later?

A crack or gap in an unprotected roof lets water into the structure over time, and fixing that after the fact means restoration — breaking out damaged finishes, drying the area, and redoing the waterproofing anyway. Sealing the roof properly while it's still bare avoids that cycle entirely, since there's nothing yet for water to damage.

What does heatproofing of house mean, and how is it achieved here?

Heatproofing of house refers to reducing how much heat gets into the rooms below the roof, not just treating the roof surface. Here, that's done with Diamond Jumbolon insulation board, which physically blocks heat from radiating down through the slab into the living space underneath.

What's the difference between this and your service for an already-built house?

This service is for a roof still under construction — bare concrete, no finishes yet, so waterproofing goes on directly and simply. An already-built house usually needs grinding, cleaning, and crack repair first, since the roof has years of wear; that's covered by our old-house roofing service instead.

What is DPC, and why is a DPC mix with Sika-1 used over the insulation?

DPC (damp-proof course) refers to a waterproof, protective layer used to stop moisture movement. Here, a DPC-style mix combined with Sika-1 integral waterproofer is applied over the insulation board to seal and level the surface, so it's fully protected and ready for plaster or tiles without disturbing the layers underneath.

When should this service happen during construction?

It's applied once the roof's structural work is complete — what our team refers to as the lantern work stage. The exact timing can vary slightly by project, so it's worth confirming the right point in your specific build schedule with our team directly.

Which cities does Ghar Plans provide this roofing service in, and how do I book it?

This service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. Message our team on WhatsApp or reach out through our Contact Us page with your city and construction timeline, and we'll coordinate the visit.

Build In the Protection, Skip the Restoration

The cheapest time to deal with water damage is before it happens. Message our team on WhatsApp or get in touch through our Contact Us page to schedule your roof waterproofing and heatproofing service as part of your new house's construction timeline in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.

Whether you need a water tank service near you for a tank that's been in use for years, or waterproofing septic tank work as part of a new house build, Ghar Plans treats both jobs as what they really are: sealing a concrete structure so it reliably holds whatever's inside it. Our water tank and septic tank waterproofing service covers both already-built and brand-new structures, so whichever stage your house is at, there's a version of this service built for it.

How Ghar Plans Delivers This Water Tank Service

The process depends on one thing: whether your water tank or septic tank already exists, or is being built as part of a new house. Here's exactly what happens in each case.

For an Already-Built Water Tank or Septic Tank (Old Houses). We start with a deep cleaning process, clearing out sludge, dirt, bacteria, and any harmful buildup that's collected over the tank's years of use — this matters both for hygiene (especially in a water tank storing drinking water) and because a waterproofing coat needs a clean surface to bond to properly. Once the tank is clean, our team carefully inspects it for cracks and leak points and seals them, so the waterproofing layer that follows isn't being applied over an active leak. Only once the surface is properly prepared do we apply a double coat of Sika Seal 105 — a second coat applied over the first restores a strong, continuous waterproof barrier across the whole tank, inside and out where accessible.

For a New House (Under Construction). Once the tank's concrete structure is ready, there's no old buildup to clean or existing damage to repair, so we move straight to waterproofing: a double coat of Sika Seal 105 applied directly to the bare concrete. Because Sika Seal 105 is a cementitious coating, it bonds mechanically and chemically into fresh concrete, which is exactly why it works best applied at this stage rather than added later. The result is a durable, reliable waterproof layer built into the tank from day one, so the water it holds stays clean, safe, and fresh for the long term.

Why Water Tanks and Septic Tanks Both Need Waterproofing

It's easy to assume a water tank and a septic tank need completely different treatment, since one holds something you drink and the other holds something you'd rather not think about. In practice, both are concrete (or masonry) structures doing the same basic job in reverse: containment. A water tank that develops a crack risks losing stored water and letting outside contamination in, which is a health concern if that water is for drinking or cooking. A septic tank that develops a crack risks the opposite — sewage and wastewater seeping out into the soil around your house, which is both unhygienic and, left long enough, a problem for your property itself. Sealing both with a double coat of Sika Seal 105 addresses that shared root cause directly.

Where We Provide This Water Tank Service

This water tank and septic tank waterproofing service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If you're searching for a water tank service near you in one of these cities, our team can visit the site, assess the tank, and confirm whether it needs the full clean-and-repair treatment or a straightforward waterproofing coat.

Why Choose Ghar Plans for This Water Tank & Septic Tank Service

Ghar Plans (GP Design and Construction) is a trusted Pakistani platform for house architectural design, interior design, construction, and building material supply, headquartered in Lahore with projects across cities throughout Punjab. We supply genuine Sika Seal 105 directly, so the same product this service is built around is also available to you as a standalone purchase — and because we work on full house construction every day, our team can tell you plainly whether your tank needs a straightforward waterproofing coat or a full clean-and-repair job first, rather than upselling you on work it doesn't need.

Frequently Asked Questions

What does this water tank and septic tank waterproofing service include?

For an already-built tank, it's deep cleaning to remove sludge, dirt, and bacteria, followed by crack inspection and sealing, then a double coat of Sika Seal 105. For a new house, we apply the same double coat of Sika Seal 105 directly once the structure is ready.

Is the process different for an old house versus a new house?

Yes. An existing tank needs cleaning and crack repair first, since it's already been in use and may have sludge buildup or leak points. A new tank goes straight to waterproofing, since the concrete is freshly cast and hasn't had time to develop buildup or damage.

What does waterproofing septic tank actually involve?

Waterproofing septic tank structures means sealing the concrete shell so sewage and wastewater stay contained inside rather than seeping into the surrounding soil. Ghar Plans treats this with the same double-coat Sika Seal 105 application used on water tanks, after cleaning and crack sealing on an existing structure.

Is Sika Seal 105 safe for a water tank that stores drinking water?

Yes. Sika Seal 105 is non-toxic once fully cured, which is part of why it's suitable for water tanks used to store drinking water, alongside its use on septic tanks and other water-retaining structures.

How is watertank waterproofing different from septic tank waterproofing?

A water tank needs to keep clean water in and contamination out, while a septic tank needs to keep sewage and wastewater from leaking out into the soil. Ghar Plans addresses both with the same core waterproofing treatment, since in each case the underlying job is sealing a concrete structure so it reliably holds whatever's inside it.

Is there a water tank service near me?

This water tank and septic tank waterproofing service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If you're in or near one of these cities, message our team and we'll confirm a visit.

How do I book this water tank or septic tank waterproofing service?

Message our team on WhatsApp or reach out through our Contact Us page with your city and tank details — including whether it's an existing tank or part of a new house — and we'll arrange a site visit and timeline.

Protect What Your Tanks Are Holding

A water tank or septic tank usually only gets noticed when something's already gone wrong — contaminated water, a foul leak into the garden, or a costly repair once the damage is done. Message our team on WhatsApp or get in touch through our Contact Us page to schedule your water tank and septic tank waterproofing service in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.

Roof Waterproofing for an Old House

Roof leakage in an old house is usually more than a surface problem. Years of sun exposure, rain, standing water, cracks, damaged screed, weak joints and previous failed coatings can allow moisture to enter the roof system. Ghar Plans provides professional roof waterproofing for old houses in Pakistan with a repair-focused approach that identifies the source of leakage before applying the final waterproofing system.

Our roofing service is suitable for RCC roofs and terraces showing seepage, damp patches, peeling ceiling paint, recurring leakage or visible roof cracks. Instead of simply applying another coat over a damaged surface, we assess the existing roof, repair weak areas, improve critical details and then provide roof proofing with a suitable waterproofing system.

Common Roof Problems in an Old House

Older roofs can develop multiple defects over time. A successful roof waterproofing treatment should address the actual cause of water entry rather than only the visible dampness inside the house.

Cracks in concrete, screed or old roof treatment.

Water ponding because of insufficient or damaged roof slope.

Leakage around rainwater outlets, pipes and other roof penetrations.

Weak parapet-to-roof joints and cracked corners.

Loose, deteriorated or poorly bonded previous waterproofing layers.

Porous concrete or screed that allows water absorption.

Moisture stains, ceiling damage, paint bubbling or plaster deterioration below the roof.

Our Roof Waterproofing and Roof Proofing Process

1. Roof Inspection and Leakage Assessment

Ghar Plans first inspects the roof surface, cracks, parapets, drainage points, pipe penetrations, existing coatings and areas where water remains after rain. The visible leakage point inside a house may not always be directly below the point where water enters, so the roof condition is reviewed before the treatment method is finalized.

2. Cleaning and Surface Preparation

Proper preparation is one of the most important parts of a roofing service for an old house. Dust, dirt, algae, loose material and weak or failed coatings are removed where required. The surface must be sufficiently sound and clean for the selected waterproofing material to bond correctly. Damaged concrete or screed is repaired before the main roof proofing layer is applied.

3. Crack, Joint and Weak-Area Repair

Visible cracks, voids and vulnerable joints are treated before general roof waterproofing. Particular attention is given to parapet junctions, corners, drain outlets and service penetrations because these details are common paths for water entry. Where suitable, crack-sealing or repair products can be used as part of the preparation.

4. Slope and Drainage Correction Where Required

Standing water increases stress on old roof surfaces and waterproofing layers. If the roof has low spots or poor drainage, corrective screed or localized slope improvement may be recommended so rainwater can move toward the outlets. Waterproofing performs better when drainage problems are corrected rather than leaving water permanently ponded on the treated surface.

5. Application of the Waterproofing System

After repairs and preparation, a suitable waterproofing system is applied according to the existing roof condition. For exposed concrete roofs and terraces, a flexible liquid-applied membrane can create a continuous, seamless waterproof layer. For areas requiring a cementitious treatment or repair-compatible barrier, a suitable cementitious waterproofing product may be selected. The exact system depends on the substrate, previous treatment and final roof use.

6. Detailing, Final Inspection and Testing

The completed roof proofing treatment is checked at corners, parapets, drains, penetrations and repaired cracks. Where appropriate for the selected system and site condition, a controlled water or drainage check can be carried out after the required curing period. The roof is then reviewed for visible defects before completion.

Why Surface Preparation Matters on an Old Roof

Applying waterproofing directly over dust, loose screed, weak concrete or a failing old coating can reduce adhesion and shorten the life of the treatment. For this reason, professional roof waterproofing starts with a sound substrate. Existing defective layers may need localized or complete removal, cracks and voids should be repaired, and the roof should be cleaned before the new waterproofing system is installed.

Recommended Waterproofing Options for Old Roofs

There is no single roof proofing material that is correct for every old house. Ghar Plans selects the treatment according to the roof surface and type of defect.

Flexible liquid-applied waterproofing membrane for exposed roofs and terraces where a seamless coating is suitable.

Reinforced liquid waterproofing at roofs with cracks, joints or complicated details where additional reinforcement is required by the selected system.

Cementitious waterproofing for suitable concrete and masonry areas where a cement-based barrier is appropriate.

Crack and joint repair materials before the main waterproofing application.

Localized screed and slope correction where standing water is contributing to leakage.

Benefits of Ghar Plans Roofing Service

Professional roof waterproofing for old and leaking house roofs.

Inspection-based treatment instead of applying chemicals without identifying roof defects.

Repair of cracks, joints and vulnerable leakage points before final roof proofing.

Attention to roof drainage and water ponding.

Use of suitable branded waterproofing and repair materials where specified.

A complete roofing service covering preparation, repair, waterproofing and final inspection.

Why Choose Ghar Plans for Roof Waterproofing?

Old roofs require a different approach from newly constructed roofs. Previous coatings, damaged screed, active cracks, blocked or poorly positioned drains and years of weather exposure can all affect the result. Ghar Plans evaluates these conditions before recommending the roofing service, helping ensure that the selected roof waterproofing system is matched to the actual site condition.

Frequently Asked Questions

What is the best roof waterproofing method for an old house?

The best method depends on the existing roof surface, cracks, previous treatments, drainage and the source of leakage. A flexible liquid membrane, reinforced system, cementitious waterproofing or a combination of repairs and waterproofing may be recommended after inspection.

Can waterproofing be applied over an old roof coating?

Only if the existing coating is sound, compatible and properly bonded. Loose, weak or failed material should not simply be covered. The roof must be assessed and prepared so the new waterproofing system can achieve proper adhesion.

Can roof waterproofing stop ceiling seepage?

Roof waterproofing can stop seepage when the roof is the actual source and the entry points are correctly identified and treated. Cracks, joints, drains, parapets and penetrations should also be checked rather than treating only the horizontal roof surface.

Why does my old roof leak even when there is no large visible crack?

Water can enter through fine cracks, porous surfaces, failed joints, pipe penetrations, parapet connections or damaged previous coatings. Ponding water can also increase the chance of penetration.

Is roof proofing the same as repairing roof cracks?

No. Crack repair is one part of the treatment. Complete roof proofing can also require surface preparation, joint detailing, drainage correction and a continuous waterproofing membrane or coating.

Which waterproofing products can Ghar Plans use?

Depending on the roof condition and approved treatment system, products can include Sikalastic®-510 for flexible liquid-applied roof waterproofing, SikaTop Seal-107 for suitable cementitious waterproofing applications, and Sikadur®-20 for appropriate crack-sealing work.

How long does roof waterproofing take?

The duration depends on roof area, number of repairs, removal of old treatment, weather conditions and curing time of the selected materials. A project-specific duration can be provided after site assessment.

Book Roof Waterproofing for Your Old House

Recurring roof leakage can damage ceiling plaster, paint, electrical finishes and the overall condition of an old house. If your roof has cracks, seepage, standing water or a failed previous treatment, Ghar Plans can inspect the roof and recommend a suitable roof waterproofing and roof proofing solution. Contact Ghar Plans for a professional roofing service and site-specific quotation in Pakistan.

An old roof rarely fails all at once. It's a damp patch on the ceiling one monsoon, a hairline crack the next, and upstairs rooms that get hotter every summer as the coating wears thin — small signs of water damage building toward a bigger repair bill. Whether you searched for roof waterproofing, heatproofing roof protection, waterproof in roof solutions, or proof roofing for a house that's already built, this is Ghar Plans' service for restoring that protection properly on an old house — not just patching the spot that's leaking today.

How Ghar Plans Restores an Old House Roof

This service takes a roof that's already showing wear — leaks, heat coming through, or both — and rebuilds its protection in four stages:

Step 1: Primer Coat. The process starts with a primer coat of Sikalastic-510, applied to prepare and strengthen the existing roof surface before any waterproofing goes on. On a roof that's already been through years of sun and rain, this coat is what gives everything applied afterward something solid to bond to, rather than sealing over a weak or chalky surface.

Step 2: First Waterproofing Coat. With the surface prepared, we apply the first full waterproofing coat of Sikalastic-510 across the roof. This is where the actual sealing begins — closing off the hairline cracks and worn patches that have been letting water in, and starting to build the heat-reflective barrier that keeps the rooms below noticeably cooler.

Step 3: Fiber Mesh Reinforcement. Next, fiber mesh is installed over the first coat. Embedding the mesh into the system, rather than leaving it exposed, reinforces the waterproofing layer from within, so it resists cracking again as the roof continues to expand and contract through Pakistan's weather — the same movement that likely caused the original damage.

Step 4: Top Coat. The process finishes with a top coat of Sikalastic-510 applied over the mesh, sealing the entire system. What's left is a continuous, jointless, heat-reflective waterproofing layer — your roof's protection fully restored, not just patched at the one spot where it was leaking.

Together, these four stages take a roof that's already lost some of its protection and rebuild it from the surface up. If your roof also has deeper damage — larger cracks, structural wear, or old coating that needs to be removed first — our team assesses that on site before this system goes on, so what you get matches your roof's actual condition rather than a one-size-fits-all job.

Restoring Protection Before Water Damage Gets Worse

By the time a roof is old enough to need this service, water damage usually isn't hypothetical — it's already visible somewhere, even if it's just a faint stain or a room that runs noticeably hotter than the rest of the house. Left alone, that damage doesn't stay put: a small roof leak becomes a damp wall, then cracked plaster, then a repair bill far bigger than the roof itself. This service is Ghar Plans' answer to that — proper waterproofing of roof and heatproofing materials applied once, so the damage stops spreading and the roof goes back to doing its job.

Where We Provide This Service

This roof waterproofing and heatproofing restoration service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If your roof is showing leaks, heat, or visible wear in one of these cities, our team can visit, assess its condition, and confirm what it needs.

Why Choose Ghar Plans for This Restoration Service

Ghar Plans (GP Design and Construction) is a trusted Pakistani platform for house architectural design, interior design, construction, and building material supply, headquartered in Lahore with projects across cities throughout Punjab. We supply and apply genuine Sikalastic-510 and fiber mesh — the same waterproofing materials this service is built around — directly, backed by a company that works on full house construction and repair every day, not a one-off coating job.

Frequently Asked Questions

What does this roof waterproofing and heatproofing service include for an old house?

Four stages, all built around Sikalastic-510: a primer coat to prepare the surface, a first waterproofing coat, fiber mesh reinforcement, and a final top coat that seals the system.

What waterproofing materials does Ghar Plans use for old house roofs?

The core waterproofing materials are Sikalastic-510 — a liquid-applied, heat-reflective coating — applied in multiple coats, with fiber mesh embedded between them for reinforcement against future cracking.

What's included in the waterproofing of roof process before heatproofing starts?

On this page's process, waterproofing and heatproofing happen together rather than as separate stages: the primer and first coat of Sikalastic-510 seal the roof, while the same coating system reflects heat once it's fully applied and finished with the top coat.

Is heatproofing roof protection included, or is this waterproofing only?

Both. Sikalastic-510 is a heat-reflective “cool roof” coating, so the same coats that waterproof an old roof also reduce how much solar heat it absorbs — you don't need a separate heatproofing product on top.

Does this service include repair work like crack filling if my roof has deeper damage?

If your roof has larger cracks, structural wear, or old coating that needs removing first, our team addresses that as part of an on-site assessment before this system goes on — message us with your roof's condition and we'll confirm exactly what your roof needs.

What's the difference between this service and your water damage prevention service for new houses?

This service is for a roof that's already built and already showing wear — it restores protection that's degraded over time. The new-house version is applied during construction, before the roof has anything to protect yet, so it prevents that damage from happening in the first place rather than restoring it after the fact.

Which cities does Ghar Plans provide this service in, and how do I book it?

This service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. Message our team on WhatsApp or reach out through our Contact Us page with your city and your roof's condition, and we'll arrange a site visit.

Stop Water Damage at the Roof, Not the Ceiling

The longer a worn roof goes untreated, the more it costs to fix downstream. Message our team on WhatsApp or get in touch through our Contact Us page to restore your roof's waterproofing and heatproofing in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.

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Waterproofing a roof is far simpler — and far cheaper — before there's a finished house around it to protect. Whether you searched for roof waterproofing, service roofing, or restoration services water damage for a home that's still being built, this is Ghar Plans' answer: a waterproofing coat applied the moment your roof slab is cast, so the rest of construction happens on a roof that's already sealed against seepage and moisture.

How Ghar Plans Waterproofs Your Roof During Construction

The Waterproofing Coat: Sika Seal-105. Once your roof slab is cast, our team applies a high-quality waterproofing coating using Sika Seal-105. This is a cementitious, polymer-modified coating that bonds directly into the bare concrete, sealing the pores and hairline gaps that would otherwise let seepage and moisture into the slab. Timing this right after the slab is cast, before anything else touches the roof, means the waterproofing is sealed against the structure itself rather than applied around finishes that are already in place.

Ready for Plastering and Your Chosen Finish. Once the coat has cured, your roof is ready to move on to plastering and whichever finish you've chosen — traditional chips or marble — without the waterproofing layer getting in the way or needing to be redone later. Because the sealing work is already done at this stage, the rest of your build continues on schedule, on a roof that's protected from day one rather than treated as an afterthought.

Waterproof Now, or Pay for a Water Damage Restoration Service Later

It's tempting to treat waterproofing as something that can wait, especially when the roof looks fine and dry on the day it's cast. But once plaster, tiles, or paint go on top, a roof that was never properly sealed doesn't announce the problem until water is already getting in — and by then, fixing it means restoration services water damage work: breaking out finishes, drying the structure, and waterproofing anyway, except now around a finished home instead of bare concrete. Sealing the slab while it's still exposed is the one point in your build where this is simple, fast, and cheap.

Part of Ghar Plans' Home Maintenance Services

Roof waterproofing during construction is one of several standalone home maintenance services Ghar Plans offers beyond full house construction — alongside water tank and septic tank waterproofing, termite treatment, tile fixing, and false ceiling installation. You don't need a full construction project booked with us to get this service; it's available on its own, matched to exactly the stage your build is at.

Where We Provide This Service

This roof waterproofing service for under-construction houses is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If your roof slab is cast or about to be in one of these cities, our team can coordinate this stage directly with your build schedule.

Why Choose Ghar Plans for This Service

Ghar Plans (GP Design and Construction) is a trusted Pakistani platform for house architectural design, interior design, construction, and building material supply, headquartered in Lahore with projects across cities throughout Punjab. Because we build houses ourselves, this service is scheduled around your actual construction timeline rather than as a separate contractor visit — and we supply genuine Sika Seal-105 directly, so the same material this service uses is also available to you on its own.

Frequently Asked Questions

What does this roof waterproofing service for under-construction houses include?

A single high-quality coat of Sika Seal-105 waterproofing, applied to the roof slab once it's cast, sealing it against seepage and moisture before the rest of construction continues.

When during construction should this service happen?

As soon as the roof slab is cast — before plastering, tiling, or any finish goes on. This is the point where the surface is bare and easiest to seal properly.

Does this service include heatproofing?

No. This is waterproofing only. If you'd also like heat-reflective protection for the roof, see our roof waterproofing and heatproofing service for new houses, which bundles both into one process.

How does waterproofing during construction help me avoid a water damage restoration service later?

A roof that isn't sealed properly lets water in gradually, often without any visible sign until there's already damage to a ceiling, wall, or structure. Fixing that later means a restoration job — breaking out finishes, drying the area, and redoing the waterproofing anyway. Sealing the slab now, while it's still bare, avoids that cost entirely.

Is this a standalone service, or do I need a full construction project with Ghar Plans?

It's standalone. This is one of several home maintenance services offered on their own — alongside water tank waterproofing, termite treatment, tile fixing, and false ceiling installation — so you can book it for your build even if we're not handling the full construction.

Which cities does Ghar Plans provide this service in, and how do I book it?

This service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. Message our team on WhatsApp or reach out through our Contact Us page with your city and your slab's timeline, and we'll coordinate the visit.

Seal Your Roof Before You Build On It

The best time to waterproof a roof is before there's anything on top of it to protect. Message our team on WhatsApp or get in touch through our Contact Us page to schedule your roof waterproofing as part of your build in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.