Waterproofing you cannot see is the waterproofing that matters
Almost every leak in a new building traces back to waterproofing that was skipped, rushed or damaged by the trades that followed. It is hidden under screed, tiles, soil and paving, so mistakes are not obvious until water appears, and by then repairs mean breaking out finishes.
As main contractor, we treat waterproofing as part of the build sequence, not an add-on. It is scheduled, inspected and protected before the next trade covers it. That discipline is what keeps terraces, bathrooms and basements dry.
Where it is used
- Basement walls, rafts and slabs against groundwater
- Flat roofs, terraces and balconies
- Bathrooms, kitchens, wet rooms and laundry areas
- Swimming pools, water features and planters
- Podium decks and areas above habitable space
- Joints, penetrations, upstands and skylight junctions
Systems
The right system depends on the substrate, exposure and finish. Common options include cementitious coatings, liquid-applied membranes, bituminous sheet membranes, crystalline admixtures and tanking systems. Roofs facing intense sun need membranes that tolerate heat and UV or are protected by a screed or paving layer; below-ground structures need systems designed for hydrostatic pressure. We follow the consultant's specification and the manufacturer's application requirements.
Testing and protection
Good practice is to test before covering: ponding tests on flat roofs and terraces, flood tests in wet areas, and inspection of laps and details. After inspection the membrane is protected from damage by following trades.
Repairing existing leaks
Leaks in existing buildings need diagnosis, not guesswork. We trace the source, open up only what is necessary, repair or replace the waterproofing and make good the finish. For wider building defects see repair and rectification works.
What helps us quote
The location of the area, photos of the problem or drawings of the area to be built, the finish above, and any specification from your consultant.
