The Lower Mainland's rain volume punishes any weak point in a roof system — a slightly under-sealed valley, an aging membrane seam, a walking deck without proper slope. Waterproofing is about closing those gaps proactively, before they turn into an active leak and interior damage.
We work on sealed roof decks, walkable rooftop patios, valleys, parapet walls and penetrations, using membrane systems and flashing details built specifically for sustained coastal exposure — not just a coat of sealant over the problem.
We diagnose the real water path first, then seal it at the source.
We trace where water is actually entering, which is often not where the stain appears.
The affected area is cleaned, dried and repaired so the new membrane bonds properly.
Waterproof membrane and upgraded flashing installed at every vulnerable point.
We confirm water is draining correctly, not just sealed, before calling the job done.
A repair typically fixes a specific, already-failed spot. Waterproofing is broader — sealing valleys, penetrations and membrane seams proactively so multiple weak points get addressed before they become active leaks.
Yes — walkable roof decks and patios need the same membrane and flashing attention as any flat roof section, plus a durable wearing surface on top.
In most cases yes, once we've correctly identified the entry point. If the underlying deck has rot, that gets repaired first so the new membrane has something sound to bond to.
A properly installed membrane typically holds for 10–15+ years, though we recommend a periodic inspection to catch any UV or seam wear before it becomes a leak.
Get a free inspection and a straight answer on what it needs.
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