House Foundation Estimation — Costs & Types in Quebec

The foundation represents 8-12% of total new home cost.

Types

Poured concrete (standard): $20,000-40,000. Monolithic slab: $15,000-25,000. Screw piles: $200-500 per pile. Slab-on-grade: $12,000-20,000.

The clay soil trap

Many Quebec regions have clay soil that expands and contracts. This requires deeper foundations and sometimes piles. The estimate must account for soil type.