Figures are typical Lower Mainland ranges for planning only. Your real price depends on your property — compare written quotes from local contractors.
Average cost
Basement leak repair in the Lower Mainland typically costs $500–$1,500 per crack for injection, $1,500–$5,000 for exterior patching of a single leak point, and more if the leak is caused by failed drain tile.
Cost per crack or leak point
Polyurethane or epoxy crack injection is usually priced per crack, roughly $500–$1,200 each, with discounts for multiple cracks.
Excavation costs
Interior injection needs no digging. Exterior patches require a small excavation at the leak point.
Landscaping restoration
Minimal for interior repairs; a small patch of garden or concrete for exterior repairs.
Accessibility
Finished walls must be opened to reach the crack, adding drywall and flooring repair costs.
Depth
Leaks low on a deep basement wall are more expensive to repair from outside.
Permits
Crack injection typically needs no permit. Any drain tile or storm work does.
Leak type
Wall cracks, cold joints, tie-rod holes, window wells and pipe penetrations are the common leak points, each with a different fix.
Patch vs full system
A patch is right for one or two isolated leak points. Multiple leaks around the house usually point to a drainage problem.
Vancouver vs Fraser Valley considerations
Vancouver, Burnaby and New Westminster jobs tend to cost more: tight lot lines, shared side yards, mature trees, hand digging and higher disposal and parking costs. Fraser Valley jobs (Langley, Abbotsford, Chilliwack, Maple Ridge) usually have better machine access and lower disposal costs, but larger homes, longer runs and heavier clay can offset the savings. Low-lying Richmond and Delta often add dewatering and sump work.
Example project scenarios
Single crack injection, Coquitlam
$600–$1,000
One vertical crack injected from inside.
Window well leak, Burnaby
$1,500–$3,500
New well liner, drain connection and sealing.
Tie-rod holes, White Rock
$800–$2,000
Several tie-rod holes sealed along one wall.
Questions to ask contractors
- Will you inject from inside or patch from outside, and why?
- Is the warranty transferable if I sell?
- Could this leak be caused by failed drain tile?
- Does the price cover opening and repairing finished walls?
When basement leak repair is actually necessary
A targeted repair is right when water enters at one identifiable point. Leaks along several walls call for a drainage assessment first.
Learn more about basement leak repair in the Lower Mainland.
Basement Leak Repair cost FAQs
How much does basement leak repair cost in BC?
Basement leak repair in the Lower Mainland typically costs $500–$1,500 per crack for injection, $1,500–$5,000 for exterior patching of a single leak point, and more if the leak is caused by failed drain tile.
What is the cost per crack or leak point for basement leak repair?
Polyurethane or epoxy crack injection is usually priced per crack, roughly $500–$1,200 each, with discounts for multiple cracks.
When is basement leak repair actually necessary?
A targeted repair is right when water enters at one identifiable point. Leaks along several walls call for a drainage assessment first.
Do I need a permit for basement leak repair?
Crack injection typically needs no permit. Any drain tile or storm work does.
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