Residential service
Swimming Pool Waterproofing in Singapore
Hydroseal waterproofs private and condominium swimming pools across Singapore, stopping water loss and leaks into the deck, soffit or rooms below. We use cementitious and crystalline tanking systems and treat structural cracks at the source, backed by a Certificate of Warranty of up to 10 years.

- Est. 1995
- 1,000+ projects
- IRATA-certified
- BCA-registered
- bizSafe
- Up to 10-yr warranty
Pool problems we fix
Unexplained water loss
A pool that keeps dropping faster than evaporation explains is usually leaking through the shell or fittings. We locate the loss and seal it.
Leaks into the soffit or rooms below
Damp patches, staining or drips beneath an elevated pool signal a breach in the tanking. We treat the structure so the water stays in the pool.
Structural and shrinkage cracks
Cracks in the pool shell open paths for water under constant pressure. We inject and seal them before re-applying the waterproofing.
Failed pool deck waterproofing
The surrounding deck and coping take rain and splash-out daily. We re-waterproof the deck so water does not track into the structure.
Pool waterproofing methods
Systems suited to the constant water pressure a pool puts on its structure.
Cementitious tanking
A bonded cementitious coating applied to the pool shell to hold back water under continuous pressure.
Crystalline waterproofing
A crystalline system that penetrates the concrete and self-seals fine cracks, well suited to permanently wet structures.
Structural crack injection
PU or resin injection into cracks and construction joints to stop active leaks before the tanking is reinstated.
Pool deck and soffit coating
Protective waterproof coatings to the surrounding deck and the soffit below to defend the structure on both sides.
Where we work
Pool and water-feature waterproofing for homes and developments across Singapore.
- Private landed-home swimming pools
- Condominium and clubhouse pools
- Lap and infinity-edge pools
- Elevated pools above carparks or rooms
- Pool decks, coping and surrounds
- Soffits and basements beneath pools
- Jacuzzis, spas and plunge pools
- Ponds and water features
How we work
One clear process, start to warranty
The same disciplined method on every job, so you always know what happens next and why.
- 01
Diagnose
A free, no-obligation site inspection. We trace the water path to its true source, not just where the stain shows, using moisture mapping and, where needed, rope-access close-up survey.
- 02
Recommend
A clear written recommendation matched to your building, budget and timeline: the method, why it suits Singapore’s climate, what it costs, and how long it lasts.
- 03
Execute
Our trained crews carry out the works with minimal disruption, surface preparation, treatment and protective coating done to specification, with safety and tidiness on site.
- 04
Document
You receive a photographic record of the works and, for façade inspections, a full condition report, the documentation facility managers need for BCA and building records.
- 05
Warranty
Every completed project is backed by a Certificate of Warranty, from 1 to 10 years depending on the system, so the result is protected long after we leave.
Common questions
Straight answers to what homeowners and building managers ask us most.
Evaporation in Singapore accounts for only a small daily drop. If your pool loses noticeably more than that, or you see damp appearing in the soffit or rooms below, it is likely a leak in the shell or fittings. Our free inspection assesses the pool and the structure underneath and tells you what is happening, with photos.
Free quote
Get a free quote for swimming pool waterproofing
Tell us about your property and the problem. We’ll diagnose the cause and quote, no obligation.
- Free, no-obligation site inspection
- Certificate of Warranty on completed work
- IRATA-certified, licensed & fully insured
- We respond within 1 business day.
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