What to check around a Vancouver home
Check 1
Separate rainwater and groundwater
Record whether seepage begins during rainfall, after prolonged wet weather, or independently of rain. That timing can help distinguish rapid surface entry from slower groundwater pressure or a plumbing source.
Check 2
Confirm the permit path
Structural repairs and many plumbing changes can require permits, while limited maintenance may not. Vancouver says the homeowner remains responsible for confirming permits even when a contractor says none are needed.
Check 3
Ask where water will go
A membrane, interior channel, or sump changes the route rather than eliminating water. Require a clear, approved outlet and a plan for overflow, maintenance, and power loss.
Local drainage and permit context
Vancouver's rainwater program explains that runoff entering sewers can contribute to flooding and overflows. The City also publishes area-specific groundwater requirements, reinforcing why below-grade design must reflect the actual site.
Municipal guidance changes and a rule for new construction may not apply to a maintenance repair. Confirm the address, scope, permits, and inspections directly with the municipality before work begins.
Official Vancouver references
Use these municipal sources to verify drainage, flood, and permit questions. Wet Basement Repair BC is an independent research directory and is not affiliated with the municipality.
Vancouver rainwater management
City guidance on managing rainfall at the property level.
Read the official sourceWhen a permit is needed
Building-permit guidance for repairs and alterations.
Read the official sourceVancouver plumbing permits
Permit rules for plumbing installation and changes.
Read the official sourceRepair approaches to compare
The right scope should follow the diagnosed source. Compare proposals by the water path they address, the drainage outlet they rely on, required inspections, restoration exclusions, maintenance, and written warranty terms.
Wet basement repair
A problem-first repair path that starts with the water entry mechanism instead of jumping straight to a single product or method.
Basement waterproofing
A broad term for controlling recurring water intrusion with interior, exterior, or combined drainage and sealing methods.
Foundation crack repair
Focused repair for leaking or stable foundation cracks, with the method chosen according to whether the crack is only leaking or also moving.
Exterior foundation waterproofing
Excavation-based waterproofing that stops water before it reaches the wall by rebuilding the foundation’s outside protection layer.
Interior drainage systems
A perimeter collection system that catches seepage inside the basement and moves it to a sump or discharge point.
Crawlspace encapsulation
A moisture-control approach for crawlspaces that combines sealing, drainage, and humidity management instead of leaving the space open to soil moisture.