Mold Remediation in North Vancouver

Lynn Valley daylight basements have a wet wall, and it's the one against the hill. Window wells and the soil behind the concrete keep that side cool and damp into spring. The room can smell fine in January. By July the batts on that wall are growing mold because the moisture never left.

We open the uphill section, contain the basement, and remove colonized insulation and board. The concrete takes longer to dry than the room. A fogger doesn't dry a retaining wall. If the well or the hill soil is still feeding that cavity, the return path is why new drywall fails.

Deep Cove crawls under mid-century houses are vented, and those vents move damp air across cool joists. That isn't a dry. Soil below adds moisture. Capilano houses with the same floors smell fine at Christmas and wrong in July, because the crawl was wet the whole time.

A dehumidifier in the hallway doesn't dry joist bays. We contain the hatch, remove colonized insulation, clean wood that can stay, and put air in the cavity. If the soil and the vents keep loading the crawl, that return path is still feeding mold when we pack up.

Edgemont daylight basements hide the wet side behind finished board. The uphill wall stays cold, insulation sits on damp concrete, and mold grows out of sight. Norgate adds a damper slab edge, but the hill wall is the Edgemont path. Close that wall wet and you lock the moisture in.

We meter before we call it a small cut, then contain the room and remove colonized batts and board. The concrete has to dry. Fogging the rec room leaves the cold wall wet. If the hill is still feeding that cavity, the return path puts mold behind the new board.

Lower Lonsdale stacks fail between floors and wet the suite below. The ceiling gets paint while the cavity stays damp, and mold shows in a closet weeks later. This is a plumbing path inside concrete. It keeps feeding the bay until that stack is actually dry.

We contain the suite, open the wet ceiling or wall, remove colonized board, and dry the cavity. A fogger in the lounge won't reach a stack bay. If the line above is still leaking, the return path reopens and the smell comes back downstairs.