Swimming Pool Waterproofing Services in Pakistan | No Leaks
Roof Power Enterprises (Pvt.) Limited · Registered Private Limited Company · 8+ Years · Lahore · Islamabad · Karachi · Nationwide Call or WhatsApp: 0300-1210012 — Free Pool Inspection
Quick Answer
A leaking pool quietly drains water, chemicals, and money every single day — and the usual cause is that it was never waterproofed properly, or was waterproofed with an ordinary coating that pool chemicals destroyed. A pool holds chlorinated water permanently, under pressure, so the waterproofing has to be genuinely chemical-resistant, immersion-grade, detailed at every fitting, and flood-tested — and applied before the tiles or plaster, not after. That’s the specialist job we do at Roof Power. If your pool is losing water, or you’re building one, we’ll do it right the first time.
Why a Swimming Pool Is the Hardest Water Structure to Get Right
People assume a swimming pool is just a big water tank. It isn’t — it’s harder, for three reasons that decide everything about how it must be waterproofed.
The water is chemically aggressive. Pool water isn’t plain water. It’s dosed with chlorine and pH-adjusting chemicals that continuously attack ordinary coatings and even the concrete itself. A waterproofing material that works on a roof or a plain tank gets broken down by the very chemistry that keeps the pool clean.
The pool is permanently full, under pressure. A pool holds a large volume of water against its shell continuously, day and night, for years. There’s no drying-out period. The waterproofing lives under constant immersion and hydrostatic pressure.
The waterproofing lives under a finish. A pool’s beauty is its tiled or plastered finish — and the waterproofing sits underneath that finish, permanently. It has to bond the finish, stay watertight beneath it, and handle the shell flexing as the pool fills, empties, and heats. You can’t just recoat the surface later; the waterproofing has to be right before the finish goes on.
Roof Power Enterprises (Pvt.) Limited is a registered Pakistani building protection company. We treat pool waterproofing as the specialist, quality-first job it is — not a coat of “pool chemical” brushed on at the end of the build.
Why Ordinary Waterproofing Coatings Fail in a Pool
The most common pool leak has the same root cause: an ordinary waterproofing product was used on a structure that demands a specialist one.
A general waterproofing coat isn’t formulated to resist continuous chlorine and pH exposure — so the chemicals degrade it. It isn’t designed for permanent immersion under pressure — so it delaminates. And it often wasn’t applied as part of the shell build-up under the finish — so it was fighting a losing battle from day one. The result is a pool that starts losing water within a season or two, and an owner who’s told “pools just leak a bit.” They don’t have to.
The right materials are pool-grade, chemical-resistant — cementitious and crystalline systems built to survive chlorinated water and permanent immersion, bonded into the shell, with the finish applied over them.
The Sequence That Matters: Waterproof Before You Finish
Here’s the single most important thing about pool waterproofing, and the thing most often got wrong: the waterproofing goes on the shell, and is flood-tested, before the tiles or plaster are applied.
Waterproofing is a structural layer on the concrete shell — not the decorative finish, and not a coat on top of it. The correct sequence is: prepare the shell → apply the chemical-resistant waterproofing → detail every fitting → flood-test to prove the shell holds → then apply the tile or plaster finish over the proven, watertight shell.
Do it the other way — tile first, then try to “waterproof” — and you’ve built the finish over an untested, possibly leaking shell. When it leaks (and it does), fixing it means removing the beautiful finish you just paid for. This is exactly why so many people search for “pool leaking after tiling”: the waterproofing was skipped or done in the wrong order.
If you’re building or renovating a pool, insist that it’s waterproofed and flood-tested before the finish. It’s the difference between a pool that holds for years and one that leaks in its first summer.
Fittings: Where Pools Actually Leak
Like a bathroom, a pool rarely leaks through the middle of a sound shell. It leaks at the penetrations and fittings, and each one needs individual detailing:
- Skimmers — the openings that draw surface water; a classic leak point at the junction with the shell.
- Inlets / return jets — where filtered water returns to the pool.
- The main drain — at the deepest point, under the most pressure.
- Light niches — every underwater light is a hole through the shell.
- Construction joints — where the shell was cast in stages, needing water stoppers.
A pool waterproofing job is only as good as its detailing at these points. We treat every fitting and joint as a potential leak and seal it accordingly — because that’s where the water goes.
Why Pools Leak
Ordinary or no waterproofing — degraded by chemicals or never properly applied. Poor fitting detailing — skimmers, inlets, drains, light niches not sealed. Shell cracks — shrinkage, settlement, or structural, under constant pressure. Construction joints without water stops. Waterproofing applied after the finish — the wrong sequence. Groundwater attack on an empty in-ground pool — see below.
The In-Ground Risk Nobody Warns You About
An in-ground pool has a second problem that’s easy to miss: when it’s empty, groundwater outside can push inward on the shell — and in extreme cases even lift the pool (hydrostatic uplift). So an in-ground pool, like an underground tank, can face pressure from both directions depending on whether it’s full or empty. This is why draining an in-ground pool carelessly, in a high-water-table area, can actually damage it — and why the waterproofing and any surrounding drainage need to account for it. We factor this into how we treat and drain in-ground pools.
Signs Your Pool Needs Waterproofing
- The water level drops faster than evaporation explains (it’s leaking)
- Constant top-ups and rising water + chemical + pumping cost
- Damp, efflorescence, or water in the surrounding deck, coping, or plant room
- Cracks in the shell, tiles, or plaster
- Loose, hollow-sounding, or falling tiles; discoloured plaster
- Staining or persistent chemical imbalance (a leak diluting/altering the water)
- A newly built or freshly tiled pool that’s already losing water
- Damp appearing in a room or wall adjacent to (or below) the pool
Who Needs Swimming Pool Waterproofing
Pool owners — villas, farmhouses, and private homes with in-ground, rooftop, or plunge pools that are leaking, being built, or being renovated.
Hotels, resorts, and clubs — where a leaking pool is a running cost and a guest-experience issue.
Housing schemes and developers — community and show-home pools built to last.
Gyms and wellness centres — pools, plunge pools, and hydrotherapy tanks.
Water parks and commercial aquatic facilities — large-scale water-retaining structures.
Our Inspection
Step 1 — Establish the type and stage. In-ground, rooftop/elevated, overflow/infinity, or plunge? New build, renovation, or existing leak?
Step 2 — Find the leak. Water loss through the shell, at fittings, at joints, or into the surrounding structure? A measured drop test helps locate it.
Step 3 — Assess the shell and finish. Is the shell sound? Is the existing finish and waterproofing failing?
Step 4 — Structural check. Are cracks stable or structural? A structurally compromised shell needs engineering first.
Step 5 — Consider groundwater (in-ground). Is there a high water table that affects draining and treatment?
Step 6 — Written recommendation. System, fitting detailing, sequence, flood test, downtime, cost, exclusions — in writing.
Our Methods & Materials
Chemical-resistant cementitious systems. Pool-grade, polymer-modified cementitious waterproofing that bonds into the shell and withstands chlorinated water and immersion — the workhorse of pool waterproofing, applied under the finish.
Crystalline waterproofing. Penetrates the concrete and grows crystals that block water paths within the shell — becoming part of the structure, self-healing over fine cracks, and resisting pressure from both sides (valuable for in-ground pools).
Fitting and joint detailing. Individual sealing of skimmers, inlets, main drains, and light niches; water stoppers at construction joints; chemical-resistant treatment throughout.
Chemical-resistant finish support. Ensuring the finish (tiles/marbelite) and its grout are compatible with the waterproofing and the pool chemistry.
We don’t brush a general “pool chemical” onto a finished pool and call it waterproofing. We build a tested, chemical-resistant system into the shell.
Our Process
- Drain the pool (carefully, considering groundwater for in-ground pools).
- Prepare the shell — remove failed finish/coating back to sound concrete.
- Repair cracks and treat joints with water stoppers.
- Detail every fitting — skimmers, inlets, main drain, light niches.
- Apply the chemical-resistant waterproofing system to the shell.
- Cure the system properly.
- Flood test — fill and hold, measuring the drop over ~72 hours, to confirm the shell holds before finishing.
- Apply the finish — tiles/plaster with chemical-resistant grout — over the proven shell.
- Handover with maintenance and chemical-balance guidance.
The pool is out of use throughout — we plan the programme with you.
Applications
In-ground residential pools — villas, farmhouses. Rooftop / elevated pools — where a leak threatens the structure below. Overflow / infinity pools — with their balance tanks and overflow channels (extra detailing). Plunge and hydrotherapy pools — homes, gyms, spas. Commercial and resort pools — hotels, clubs, water parks. New construction & renovation — waterproofed and flood-tested before the finish.
Practical Project Examples
Representative examples of the situations we handle. Real Roof Power project case studies with photographs are being added to this page.
Renovation — In-ground pool, Lahore farmhouse. Problem: A pool losing water and needing constant top-ups; the plaster finish was cracking. Findings: The original waterproofing had been degraded by pool chemistry, and the main drain and one light niche were leaking. Approach: Drain, strip to the shell, repair, detail all fittings, apply a chemical-resistant cementitious + crystalline system, flood-test, then re-finish. Point of the story: The old coating wasn’t chemical-resistant — the pool chemistry had eaten it.
New build — Rooftop pool, Islamabad. Brief: Waterproof a new elevated pool correctly before finishing (a leak here would damage the structure below). Approach: Chemical-resistant waterproofing on the shell, full fitting and joint detailing, a 72-hour flood test to prove it held, then the finish. Point of the story: On an elevated pool, the flood test isn’t optional — you prove it before you tile.
Commercial — Hotel pool, Karachi. Problem: A resort pool with ongoing water loss raising running costs and disrupting guests. Approach: Leak diagnosis, crystalline treatment of the shell, fitting re-detailing, flood test, and re-finish, programmed around low-occupancy periods. Point of the story: For a commercial pool, a leak is a daily cost — fixed once, properly.
What Affects the Cost
- Pool size and type — in-ground, rooftop, overflow/infinity, plunge, commercial.
- New build vs renovation vs leak repair.
- Condition — sound shell vs cracked/structurally damaged.
- Finish — whether tiles/plaster must be removed and replaced.
- Fitting detailing — number of skimmers, inlets, lights, drains.
- Materials — the chemical-resistant system specified.
- Groundwater — in-ground pools in high-water-table areas.
Pricing disclaimer: cost is provided in a written quotation after inspection. Pool waterproofing is a premium, specialist job — the cost reflects the materials, detailing, and testing a pool genuinely needs.
Project Timeline
| Stage | Typical duration |
| Inspection & recommendation | 1–2 days |
| Drain, strip, prepare | 1–3 days |
| Repair, detail fittings, apply system | 2–5 days |
| Curing | System-dependent |
| Flood test | ~72 hours |
| Finish (tiling/plaster) | Varies with pool size |
| Handover | 1 day |
The pool is out of use through works, curing, flood test, and finishing. We give you a realistic return-to-use date and won’t shortcut the flood test — it’s what proves the job.
Common Mistakes
Using an ordinary waterproofing chemical. Pool chemistry destroys it — the material must be chemical-resistant. Waterproofing after tiling. The wrong sequence — the waterproofing goes on the shell, tested, before the finish. Skipping the flood test. Without a measured fill-and-hold, you don’t know the shell holds until it leaks. Poor fitting detailing. Skimmers, inlets, drains, and light niches are where pools leak. Ignoring the empty-pool groundwater risk on in-ground pools. Letting the pool builder “waterproof” as an afterthought instead of treating it as a specialist step.
Risks of Ignoring a Leaking Pool
- Continuous loss of water, chemicals, and money
- Damage to the surrounding deck, coping, plant room, and structure
- For rooftop/elevated pools, damage to the structure below
- Shell deterioration and reinforcement corrosion
- Persistent chemical imbalance and poor water quality
- A costly re-finish if the leak is left until the tiles/plaster fail
- Falling value of an expensive asset
Honest Limitations
Retro-waterproofing a finished pool is limited. The right time is before the finish. On a finished pool, we can address specific leaks, but a full solution may require removing the finish — we’ll tell you honestly.
Structural problems need an engineer. A structurally cracked or moving shell needs engineering repair before waterproofing.
The pool must be out of use. There’s no waterproofing a pool in service — draining, works, curing, and testing take it offline.
Durability depends on chemical balance too. Even the best waterproofing lasts longer in a properly chemically-balanced, maintained pool; badly balanced water shortens the life of everything it touches.
In-ground draining carries its own risk. In high-water-table areas, draining must be managed to avoid groundwater damage.
Nothing is permanent. Service life depends on the system, application, chemistry, and maintenance. No lifetime guarantee applies to a pool in use.
Why Choose Roof Power Enterprises (Pvt.) Limited
- A registered private limited company — traceable and accountable.
- 8+ years across residential and commercial water-retaining structures.
- We treat pools as specialist, chemical-exposed structures — not a coat of pool chemical.
- We use chemical-resistant, immersion-grade systems built to survive pool chemistry.
- We waterproof and flood-test before the finish — the correct sequence.
- We detail every fitting — skimmers, inlets, drains, light niches, joints.
- We account for the in-ground groundwater risk.
- We assess structural risk honestly and refer where needed.
- Full water-retaining expertise — pools, tanks, and wet areas.
- Three offices — Lahore, Islamabad, Karachi — nationwide.
- Named leadership — CEO & Founder Muhammad Haseeb Hassan reviews technical recommendations.
Frequently Asked Questions
Does a swimming pool need waterproofing?
Yes — and a specialist kind. A pool holds chemically treated water permanently under pressure, so it needs a chemical-resistant, immersion-grade waterproofing system built into the shell, not an ordinary coating. Without it, the pool loses water and chemicals continuously and damages the surrounding structure. Waterproofing is what makes a pool actually hold water for years.
Do you waterproof a pool before or after tiling?
Before — always. The waterproofing is a structural layer applied to the concrete shell and flood-tested to confirm it holds, and only then is the tile or plaster finish applied over it. Waterproofing after tiling, or skipping it, is the most common reason pools leak — and fixing it then means removing the finish.
Why is my swimming pool losing water?
Usually because the waterproofing failed or was never done properly — often an ordinary coating that pool chemicals degraded — or because a fitting (skimmer, inlet, main drain, or light niche) or a construction joint is leaking. A measured drop test and inspection locate the source. Some water loss is normal evaporation, but a steady, faster drop is a leak.
Why is my pool leaking after tiling or plastering?
Because the shell wasn’t properly waterproofed and flood-tested before the finish went on. The finish is decorative, not waterproof — the waterproofing beneath it is what holds the water. If that layer was skipped or failed, the pool leaks despite a perfect-looking finish, and a full fix usually means removing the finish.
What Are the Best Swimming Pool Waterproofing Services in Pakistan?
There’s no single “best chemical” — there’s the right chemical-resistant, immersion-grade system for the pool. Pool-grade cementitious and crystalline systems are the appropriate choices because they resist chlorinated water, bond into the shell, and handle permanent immersion. The right one depends on the pool type and condition, which is why we inspect first.
Does pool waterproofing need a flood test?
Yes — it’s essential. After the waterproofing is applied and cured, the pool is filled and held for around 72 hours with the water drop measured, to confirm the shell holds before the finish is applied. Skipping the flood test means you don’t actually know it’s watertight until it leaks under a finished pool.
How much does swimming pool waterproofing cost in Pakistan?
It depends on the pool’s size and type, whether it’s a new build, renovation, or leak repair, the condition of the shell, whether the finish must be removed, the fitting detailing, and the chemical-resistant system specified. It’s a premium, specialist job, and we provide a written quotation after inspection.
Can a leaking concrete pool be repaired without rebuilding?
Usually yes. If the shell is structurally sound, draining it, repairing cracks and joints, detailing the fittings, applying a chemical-resistant system, and flood-testing resolves the leak without rebuilding — though it may involve removing and replacing the finish. Only a structurally failing shell needs reconstruction, and we advise honestly if that’s the case.
Which cities do you serve?
Our offices are in Lahore, Islamabad, and Karachi, and we deliver swimming pool waterproofing across Pakistan, including farmhouse and resort areas.
A Note from the Founder
A swimming pool is one of the most expensive things a family builds, and one of the most commonly ruined by cutting a corner on waterproofing.
The story is almost always the same. The pool is built, someone brushes an ordinary waterproofing chemical onto it — or waterproofs it after tiling, or not at all — and within a summer or two it’s losing water, and losing chemicals, and quietly damaging everything around it. The owner is told pools just do that. They don’t. A pool leaks because it wasn’t waterproofed for what it actually is: a structure holding aggressive, chlorinated water permanently, under a finish.
We treat it properly. Chemical-resistant materials that survive pool chemistry. Every fitting detailed. And the shell waterproofed and flood-tested before a single tile goes on — because I want to prove it holds before we make it beautiful, not after.
If your pool is losing water, or you’re building one, let us do it the specialist way.
Muhammad Haseeb Hassan CEO & Founder, Roof Power Enterprises (Pvt.) Limited
Book Your Free Pool Inspection
If your pool is losing water or damaging the structure around it, or you’re building or renovating one — let us inspect it and give you a specialist, tested solution.
Call or WhatsApp: 0300-1210012 Email: roofpowers@gmail.com
Our offices: Lahore — Office No.1, Millat Tractor Cooperative Housing Society, New Defence Road Islamabad — Office No.3, Roshan Plaza, Sector H-13 Karachi — 2nd Floor, Hassan Square, Gulshan-e-Iqbal
Building or renovating a pool? Insist on waterproofing and a flood test before the finish — ask us how we do it. Hotel, club, or developer? We waterproof commercial pools to specification, programmed around your operations.
Roof Power Enterprises (Pvt.) Limited — Registered Private Limited Company · 8+ Years · Waterproofing & Building Protection Across Pakistan.
Disclaimers. Recommendations are subject to physical inspection and leak diagnosis. Waterproofing must be applied and flood-tested before the tile or plaster finish; retro-waterproofing a finished pool is limited. The system depends on pool type, condition, chemical exposure, and structure; structural cracks or shell movement require engineering assessment before waterproofing. The pool must be drained and out of use during works, curing, and testing. Long-term durability also depends on correct pool water chemical balance and maintenance. Pricing is provided in a written quotation after inspection. Warranty terms depend on method and scope and are stated in the quotation.