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.

At GharPlans, we provide a complete premium waterproofing and heat proofing solution specially designed for old houses. Our process starts with proper grinding of the roof surface to remove weak particles, old layers, dust, and uneven areas. After grinding, the roof is deeply cleaned to ensure maximum bonding and long-lasting results.

Once the surface is ready, all visible cracks and damaged areas are carefully filled and repaired to stop future seepage and leakage issues. After crack treatment, we apply a primer coat using a very thin mixture of Sikalastic®-510 with water to improve adhesion and prepare the surface for waterproofing.

In the next step, we apply the first coat of Sikalastic®-510 evenly across the roof surface. After the first coat, a high-quality fiber mesh is installed on top to strengthen the waterproofing layer and improve crack resistance. Finally, we complete the process with a final coat of Sikalastic®-510 over the fiber mesh, creating a durable, heat-reflective, and long-lasting waterproof protection system for your roof.

Building a new house? Don’t leave your roof unprotected from leakage and extreme heat. Ghar Plans provides a complete Roof Waterproofing & Heat Proofing solution designed specially for Pakistan’s harsh weather conditions.  

Our process starts right after the lantern work, where we apply Sika Seal-105 as the first waterproofing layer to protect the roof from seepage and moisture. After that, we install Diamond Jumbolon Heat Insulation to reduce roof temperature and keep your home cooler in summer.  

In the final stage, we apply a strong DPC mix with Sika-1 on top of the insulation layer to create a durable protective surface. Once the process is complete, you can easily do plaster, tiles, or any finishing of your choice on the roof.  

Get long-lasting waterproofing, heat protection, and peace of mind with Ghar Plans.

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.

Gharplans offers advanced roof waterproofing and heat proofing solutions for old houses, restoring protection and durability. We use high-performance Sikalastic 510 to create a strong barrier against leakage, heat, and weather damage.

The process begins with a primer coat to prepare and strengthen the surface. This is followed by the first waterproofing coat, after which a fiber mesh is applied for added reinforcement and crack resistance. Finally, a top coat is applied to seal the system completely, ensuring long-lasting waterproofing and reduced heat absorption.

Gharplans provides reliable roof waterproofing solutions for houses under construction, ensuring long-term protection right after your slab work is completed. Once the slab is done, our team applies a high-quality waterproofing coating using Sika Seal 105, creating a strong barrier against seepage and moisture.

After the coating process, you can proceed with plastering and finish the surface according to your preference, whether it’s traditional chips or marble, while staying confident that your roof is fully protected from future leakage and damage.