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Serving Southern Ontario Since 1998 Licensed & Insured Waterproofing • Drainage • Plumbing

Water Management

Solve the source — not just the symptom.

Waterproofing, drainage, foundation and flood-protection solutions selected according to how water is entering the property.

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Basement Waterproofing

Interior Waterproofing Interior drainage & water management Exterior Waterproofing Excavation, membrane & drainage Basement Leak Repair Diagnose and stop basement water entry Foundation Crack Repair Repair leaking foundation cracks

Drainage & Flood Protection

Sump Pump Installation Pumps, pits, backups & replacements Backwater Valve Protection against sewer backflow French Drain Installation Foundation & property drainage

Foundation & Plumbing

Basement Underpinning Basement lowering & structural work Sewer & Drain Repair Backups, drainage & sewer problems Emergency Service Urgent water & flooding assistance

Not sure which waterproofing method you need? Start with an assessment. Request a Free Assessment →

Southern Ontario

Local waterproofing expertise across the region.

Explore basement waterproofing, sump pump, drainage, crack repair and flood-protection services near you.

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GTA, York & Durham

Toronto › Markham › Richmond Hill › Mississauga › Brampton › Ajax ›

Halton, Hamilton & Brantford

Oakville › Burlington › Milton › Hamilton › Brantford ›

Waterloo, Wellington & Simcoe

Kitchener › Cambridge › Guelph › Barrie ›

Niagara & Southwest

Grimsby › St. Catharines › Niagara Falls › London ›

We service surrounding communities beyond the cities listed here. View Complete Service Area Directory →

Problems

Rebates

Homeowner Resources

Understand the problem before you repair it.

Research waterproofing methods, costs, warranties, rebates and common basement-water problems.

Learn & Research

Water Problem Guides Waterproofing FAQ Home Repair Blog Waterproofing Cost Calculator

Canada Waterproofers

About Us Customer Reviews Warranty Information Financing Options Rebates & Subsidies Contact Us

Need professional help diagnosing the water source? Request a Free Assessment →

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Basement Waterproofing

Interior Basement Waterproofing Exterior Basement Waterproofing Basement Leak Repair Foundation Crack Repair

Drainage & Flood Protection

Sump Pump Installation Backwater Valve Installation French Drain Installation

Foundation & Plumbing

Basement Underpinning Sewer & Drain Repair Emergency Service View All Services →

GTA, York & Durham

Toronto Markham Richmond Hill Mississauga Brampton Ajax

Halton, Hamilton & Brantford

Oakville Burlington Milton Hamilton Brantford

Waterloo, Wellington & Simcoe

Kitchener Cambridge Guelph Barrie

Niagara & Southwest

Grimsby St. Catharines Niagara Falls London View All Service Areas →

Basement Problems Rebates & Subsidies Emergency Service

Water Problem Guides About Canada Waterproofers Customer Reviews Waterproofing FAQ Home Repair Blog Warranty Information Financing Waterproofing Calculator Contact Us

Need help with a basement water problem?

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window well installation

Waterproofing & Drainage Assessment

Water in your basement? Start by finding the source.

Basement leaks can come from foundation cracks, failed drainage, hydrostatic pressure, sump pump problems, sewer backups or poor exterior water management. Tell us what you are seeing and we can help determine the right repair.

Get a Free Assessment → Call 416-333-5325

✓ Serving Since 1998 Experienced waterproofing professionals ✓ Warranty Protection Coverage on qualifying systems ✓ Licensed & Insured Professional Ontario contractor ★ BBB Accredited Read customer reviews

CANADA WATERPROOFERS Waterproofing • Drainage • Flood Protection

Canada Waterproofers provides basement waterproofing, foundation leak repair, drainage, sump pump, backwater valve and flood-prevention services for homeowners throughout Southern Ontario.

Main Offices

51 Wolseley St, Suite 108
Toronto, ON M5T 1A5

Mississauga

3410 Semenyk Court, Unit 9
Mississauga, ON L5C 4P8

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Services

All Services
Basement Leak Repair
Interior Waterproofing
Exterior Waterproofing
Foundation Crack Repair
Sump Pump Installation
Backwater Valve Installation
French Drain Installation
Basement Underpinning
Sewer & Drain Repair
Emergency Service

Homeowner Resources

Basement Water Problems
Cost Calculator
Rebates & Subsidies
Financing
Warranty Information
Customer Reviews
Waterproofing FAQ
Advice & Repair Guides
About Canada Waterproofers
Contact Us

Service Areas

Toronto & GTA

Toronto Mississauga Brampton Markham Richmond Hill Ajax

Halton, Hamilton & Niagara

Oakville Burlington Milton Hamilton Grimsby St. Catharines Niagara Falls Brantford

Southern & Central Ontario

Kitchener Guelph Cambridge London Barrie

View all service areas →

Waterproofing service across Southern Ontario

We serve homeowners throughout Toronto, York Region, Peel, Halton, Durham, Hamilton, Niagara Region, Waterloo Region, Wellington County, Brantford, London, Barrie and surrounding communities. Visit our service area directory to find your location.

Contractor licensing & company information

Canada Waterproofers Inc. | Toronto Licenses: T94-4543511, P25298, B25300, T95-4543513, T85-4543510 | Oakville: 2023 100463 000 00 LICE, 2023 100455000 00 LICE | Mississauga: 2025 008967 TC, 2025008966 TM | Hamilton: 23 301959 00CL, 23 301960 00MA

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