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Swimming Pool Waterproofing.

Pools leak from the shell and from the perimeter. We engineer both.

What it is

Swimming Pool Waterproofing, defined.

Residential, hospitality and institutional pool waterproofing. New-build shells, retrofit re-lining and perimeter detail remediation - using flexible polyurethane systems and cementitious slurries specified for chlorinated water and African thermal cycling.

Swimming pool waterproofing is two separate problems. The shell - the concrete tank - needs a dense, crack-controlled substrate and a cementitious slurry. The perimeter - the coping, skimmer and return-line penetrations - needs a flexible system that can move with thermal expansion. Most failures we see are at the perimeter.

Common problems

What we get called for.

  • 01Pools losing water faster than evaporation can explain
  • 02Cracking at the coping or around skimmers
  • 03Tile delamination caused by sub-tile water movement
  • 04Staining and efflorescence on equipment-room walls behind the shell
How we work

Our approach.

  1. 01

    Dye-tracing to confirm the leak source (shell vs. perimeter vs. plumbing)

  2. 02

    Shell remediation using Mapei or Sika cementitious slurries

  3. 03

    Perimeter and penetration remediation using flexible polyurethane

  4. 04

    Reinstatement of tile or finish to original specification

Materials

Systems we are certified to apply.

  • Sika
  • Mapei
  • Thoro System
  • Mameco
Questions, answered

FAQ.

Can you waterproof a pool without draining it?
No. Cementitious and polyurethane systems require a dry substrate. We work with your facility on the drain-and-refill schedule.
How long does a pool waterproofing job take?
A residential shell-and-perimeter remediation is typically 5–8 working days, plus 7 days for the system to cure before refill. Larger hospitality pools, longer.