Concrete Pool
Specialised membrane systems for concrete pool shells on new builds and resurfacing, sealing the structure against leaks and water loss.
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Protect your pool or pond from water loss, leaks and structural failure. Licensed Sydney waterproofers installing manufacturer-certified membrane systems for concrete, fibreglass and tiled pools, backed by a 10-year warranty.
Tell us about your pool or pond project. We will get back within 24 hours.
Pools and ponds hold water under constant pressure, and even a small leak can go unnoticed for months while it drains your water bill and damages the structure. Sydney's UV exposure, seasonal rainfall and shifting soils put enormous stress on a pool shell, and once a crack or membrane failure lets water through, the cost of repair climbs quickly.
At Sydney One Waterproofing, we install manufacturer-certified membrane systems engineered to hold water in and resist hydrostatic pressure. Pool shells, joints, pipe penetrations and pond liners are sealed and detailed correctly, using potable and fish-safe coatings where required.
From a new concrete pool build to a leaking koi pond, our licensed crews waterproof every pool type and water feature with certified membrane systems.
Specialised membrane systems for concrete pool shells on new builds and resurfacing, sealing the structure against leaks and water loss.
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Tailored waterproofing for fibreglass pools to protect the shell and extend its life, with solutions matched to the surface and conditions.
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Membrane and detailing beneath tiles for tiled pools, sealing the shell before finishes so water stays in and movement is accommodated.
Get a quote →Pool and pond leaks often go unnoticed until the damage is done. If you spot any of these, book a leak inspection before water reaches the surrounding structure.
If the water level keeps falling faster than normal evaporation explains, your pool or pond is very likely losing water through a leak.
Visible cracks in the pool shell, render or pond wall let water escape and let ground pressure in, and they usually worsen over time.
Constantly damp or soggy ground around the pool or pond, even in dry weather, points to water escaping below the surface.
Loose or lifting tiles and cracked grout in the pool usually mean water has worked behind the surface and the membrane has failed.
Chalky white deposits or staining on the pool edges and surrounds show water is moving through the structure and carrying salts.
An auto-fill or pump that runs far more than usual is often topping up water lost to a leak you cannot see on the surface.
We inspect the pool or pond and use leak detection methods to identify the source of water loss, cracks, joint failures and structural issues.
The surface is cleaned and prepared, cracks are sealed, joints are repaired and tiles or render are addressed to create a sound base for the membrane.
High-risk areas such as pipe penetrations, fittings, joints and shell corners are reinforced and sealed, since these are where most pool leaks begin.
A manufacturer-certified, multi-layer membrane is applied to form a full water barrier, using potable or fish-safe systems where the job requires it.
The membrane is cured and the pool or pond is retested for leaks before we hand over with care instructions and your written 10-year warranty.
Most pool and pond leaks come down to a handful of avoidable errors. Here is what we get right on every job, and what others often get wrong.
Cheap or incompatible products fail under constant water pressure. We use manufacturer-certified membrane systems matched to the pool type.
Thin coats and missed spots leave voids and weak points. We apply the membrane to the correct thickness with full, even coverage.
Sealing over an active crack only hides the problem. We repair cracks in the shell and substrate before any membrane goes on.
Pipe and fitting penetrations are a common leak point. We seal and detail every penetration so water cannot track around them.
Every pool and pond we waterproof uses certified systems applied by licensed waterproofers, with coatings selected for safety and long-term performance.
Certified application for full warranty
Licensed waterproofing contractor
Non-toxic options for ponds and water
Built to hold water under pressure
Real reviews from Sydney homeowners and builders who trusted us with their pool and pond waterproofing.
"Our concrete pool was losing water for months and we couldn't work out why. Sydney One found the leak, repaired the cracked shell and resealed it. The level has held perfectly all season. Fantastic work."
"Waterproofed our new pool before tiling. The crew explained exactly how the membrane works and the whole job was clean and on time. Backed by a written warranty, which gave us real confidence."
"They resealed our koi pond with fish-safe coatings. The water level is stable now and the fish are all healthy. Knowledgeable team that clearly knew how to handle a pond, not just a pool."
From single-room renovations to multi-level commercial sites, our crews deliver tested waterproofing systems that hold up to Sydney's coastal climate.
Discuss Your ProjectHomes, townhouses, and renovations. Compliant waterproofing for bathrooms, balconies, kitchens and laundries.
Offices, retail and hospitality fitouts. Minimal disruption with after-hours job options across Sydney.
Apartment buildings, common areas and remediation. We coordinate with strata managers from start to handover.
Builders and developers trust us for code-compliant waterproofing across new builds and large-scale projects.
Waterproofing a pool or pond is never the place to cut corners. A poorly sealed shell costs many times more in water loss, structural repair and resurfacing down the line. We deliver work that is built to last, priced fairly, and quoted transparently with no hidden costs.
Every quote we send includes the full system specification, a written warranty and clear pricing. No surprises, no shortcuts.
We respond within 24 hours, Monday to Saturday.
Common questions about pool and pond waterproofing in Sydney. Still curious? Our team is one call away.
Talk to a SpecialistYour trusted partner for expert waterproofing solutions, ensuring long-lasting protection for your home and business from water damage.
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