Basement Waterproofing Cost Vancouver 2025
Basement Waterproofing in Vancouver
Vancouver’s heavy rainfall and high water table make basement waterproofing a critical investment for many homeowners. Ignoring moisture issues leads to mould, structural damage, and costly future repairs.
Types of Waterproofing Systems
Interior Waterproofing (Drainage Systems)
French drains and interior perimeter drains collect water and route it to a sump pump. Less disruptive than exterior work.
- Cost: $8,000–$20,000 for perimeter drain system
- Sump pump: $1,500–$3,500 installed
- Battery backup sump: add $800–$1,500
Exterior Waterproofing
Excavating around foundation to apply membrane and drainage board. The gold standard but most expensive.
- Cost: $20,000–$60,000 for full exterior membrane
- Requires landscaping restoration after excavation
Crack Injection
Polyurethane or epoxy injection for isolated foundation cracks.
- Cost: $400–$2,500 per crack
Signs You Need Waterproofing
- Efflorescence (white mineral deposits) on walls
- Water seepage after heavy rain
- Musty smell or visible mould
- Cracks in foundation walls
Does It Require a Permit?
Interior drainage systems generally don’t require a permit. Exterior excavation near foundation requires a permit in most Metro Vancouver cities.
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→ See also: Vancouver Renovation Cost Guide 2026
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