Crawlspace repair in Westwood

Westwood was developed mainly in the 1960s on the west side of the city, a consistent neighbourhood of bungalows and split-levels on heavy clay. The original foundations are sound mid-century construction with full basements. Crawlspaces here are the later layer: rear additions, sunrooms, enclosed carports and converted porches added through the 1970s, 1980s and beyond.

These additions follow the same pattern we see across every postwar neighbourhood in Winnipeg. Support was set shallow — often sonotube piers well above the design frost depth — and the clay beneath them freezes to depth each winter and lifts them. Twenty or thirty cycles later, the addition is visibly out of level, the junction with the main house has opened, and the crawlspace underneath is pulling cold air in winter and humid air in summer. With batt insulation between the joists holding moisture against the subfloor, mould on the sheathing is the predictable outcome.

Clay shrinkage in dry summers compounds the water problem by opening a channel beside the foundation for the next heavy rain. Our work in Westwood is typically a combined structural and envelope job: bring support down to stable bearing below frost depth, correct grading and downspouts, add interior drainage only where groundwater actually warrants it, then encapsulate with a sealed barrier, insulate the perimeter, and confirm the space holds humidity through a full year.

Westwood calls are the standard 1960s pattern: a rear addition or enclosed carport on shallow piers, a floor that has gone out of level, doors that bind in deep winter, and a crawlspace underneath with batts in the joists and frost on the sheathing. Owners often mention they have had the tile repaired more than once.

Our first recommendation is to establish founding depth and correct support below the frost line, because repairing finishes above a moving structure is money spent twice. Grading and downspout work follows, then sealing and perimeter insulation. Interior drainage goes in only where readings show groundwater is genuinely active rather than by default.