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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.

Hydroseal applying a protective waterproof coating to a concrete soffit beneath a Singapore swimming pool
  • Est. 1995
  • 1,000+ projects
  • IRATA-certified
  • BCA-registered
  • bizSafe
  • Up to 10-yr warranty
A swimming pool holds tonnes of water against its concrete shell every hour of every day, so any weakness in the waterproofing shows up fast as falling water levels or damp appearing in the structure below. Pools sitting above carparks, basements or habitable rooms are especially sensitive, because a slow leak can damage the soffit and finishes underneath long before anyone spots it at the waterline.

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.

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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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