Damp proofing is the work that happens after the foundation is poured and before it gets buried. It is one of the last chances anyone has to keep groundwater out of the basement, and on Lower Mainland soils - which spend half the year saturated - it matters more than most homeowners realize. Skipping it or doing it cheaply is how chronic basement moisture problems begin.
On new construction we apply a sprayed or rolled damp-proofing membrane directly to the cured foundation walls, working from the footing up to grade. On below-grade walls where hydrostatic pressure is a concern (high water table, slope draining toward the house) we step up to a full waterproofing system - fluid-applied membrane or dimpled drainage mat - and tie everything into the perimeter weeping tile.
For renovations on existing homes with damp basement walls, we will excavate down to the footing on the affected sides, expose the wall, repair any cracks with structural epoxy, apply membrane, install dimpled mat, confirm the weeping tile is clear and pitched correctly, and backfill with free-draining gravel before topsoil. Done once, properly, it lasts the life of the foundation.
We do damp proofing across Surrey, Langley, and Delta on both new builds and renovations. Often we are on site already for rebar - bundling the two is usually cheaper than booking them separately. Call us to walk the site.
