How much does basement waterproofing cost in London, Ontario?

Basement waterproofing in London, ON costs $3,000–$20,000. Interior solutions (drainage channel + sump pump) run $3,000–$8,000. Full exterior waterproofing (excavation, membrane, weeping tile) costs $10,000–$20,000. Crack injection is $500–$1,500 per crack.

What causes wet basements in London, Ontario?

Wet basements in London are primarily caused by: clay soil that holds water against foundations, failed or clogged weeping tile, poor grading directing water toward the house, hydrostatic pressure from high water tables, and foundation cracks from settling.

Is interior or exterior waterproofing better?

Exterior waterproofing is the gold standard — it stops water before it reaches your foundation. However, it costs 2–3x more than interior solutions due to excavation. Interior drainage systems are effective for managing water that's already entering and cost significantly less.

Waterproofing

Basement & foundation waterproofing solutions.

Waterproofing Services in London, Ontario

Keep your basement dry and your foundation protected with Sodify's waterproofing services in London, Ontario. We provide both interior and exterior waterproofing solutions — including exterior membrane application, weeping tile installation, sump pump systems, interior drainage channels, and crack injection. Our solutions address the root cause of water intrusion, not just the symptoms.

What We Offer

✓Exterior foundation waterproofing
✓Interior drainage & sump pump
✓Weeping tile repair & replacement
✓Crack injection & sealing
✓Window well drainage

Project Gallery

Waterproofing project 1 — Sodify London, Ontario

Waterproofing project 2 — Sodify London, Ontario

Waterproofing project 3 — Sodify London, Ontario

Waterproofing project 4 — Sodify London, Ontario

Frequently Asked Questions

How much does basement waterproofing cost in London, Ontario?: Basement waterproofing in London, ON costs $3,000–$20,000. Interior solutions (drainage channel + sump pump) run $3,000–$8,000. Full exterior waterproofing (excavation, membrane, weeping tile) costs $10,000–$20,000. Crack injection is $500–$1,500 per crack.
What causes wet basements in London, Ontario?: Wet basements in London are primarily caused by: clay soil that holds water against foundations, failed or clogged weeping tile, poor grading directing water toward the house, hydrostatic pressure from high water tables, and foundation cracks from settling.
Is interior or exterior waterproofing better?: Exterior waterproofing is the gold standard — it stops water before it reaches your foundation. However, it costs 2–3x more than interior solutions due to excavation. Interior drainage systems are effective for managing water that's already entering and cost significantly less.

Get a Free Waterproofing Quote

No obligation — we'll assess your project and provide a detailed estimate.

Request a Quote 📞 519-694-5924