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Waterproofing systems

Damp walls, bubbling paint and musty smells are symptoms of water finding a way in. We seal the structure with the right system for each surface — from flat roofs to below-ground walls.

Waterproofing membrane application
Matched to the surface

No single product fixes every leak

A sun-baked concrete roof, a tiled balcony and a retaining wall each behave differently under water pressure. We assess the substrate, the exposure and the source, then specify the system that will actually hold.

  • Torch-on bituminous membranes for flat roofs
  • Acrylic polymer coatings for exposed decks
  • Polyurethane (PU) injection for active cracks
  • Cementitious systems for wet areas and tanks
Where we apply it

Common trouble spots we seal

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Flat & concrete roofs

Membrane systems and reflective top-coats that handle ponding water and relentless UV without cracking.

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Balconies & terraces

Under-tile and exposed coatings that stop water tracking into the rooms and units below.

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Bathrooms & wet areas

Cementitious membranes applied before re-tiling to keep moisture out of adjoining walls.

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Basements & walls

PU crack injection and negative-side treatments for below-ground and retaining walls.

Good to know

Waterproofing questions, answered

How long does a waterproofing system last?

It depends on the system and exposure, but a correctly prepared membrane or coating typically performs for many years. We use manufacturer-warranted materials and prepare the surface properly, which is where most failures actually start.

What is PU injection?

Polyurethane injection fills active cracks with a resin that expands and cures on contact with moisture, sealing the gap from within. It's ideal for concrete cracks that keep weeping despite surface coatings.

Do you take moisture readings?

Yes. We record moisture levels before and after treatment so you have evidence the problem is genuinely resolved, not just hidden.

Can waterproofing be done over existing tiles?

In some cases, with the right exposed-grade coating. For lasting results in wet areas, though, we usually recommend applying the membrane beneath new tiling.

Stop the damp at its source

Book a waterproofing survey and we'll pinpoint where water is getting in.

Request a survey