Toronto Waterproofing Cost Calculator

Estimate Your Costs. Secure Up to $3,000 in Rebates. Stay Dry.

Why Toronto Homes Need Waterproofing Protection

“I never thought my century-old Annex home could flood—until it did,” says homeowner Sarah K. After a heavy spring storm, her finished basement filled with water overnight. From The Junction to Etobicoke, aging foundations, high water tables, and sudden downpours put every Torontonian at risk. At Waterproofing4Less, we understand that fear—because we’ve seen it firsthand. Our certified interior and exterior waterproofing systems, sump pump installations, and backwater valves not only keep your home dry but help you tap into up to $3,000 in City rebates.

Calculate your Waterproofing Cost now

Use our smart calculator to estimate:

Interior or Exterior Waterproofing
Sump Pump Installation
Backwater Valve Installation
Rebate of up to $1,750 for a sump pump and up to $1,250 for a backwater valve, with a total maximum rebate of $3,400.
To know more about Rebates, kindly visit our Rebates page.

request a quote

Contact Us

Basement Waterproofing Costs In Toronto

Interior Waterproofing

  • Cost Range: $75–$150 per linear foot
  • We trench inside your basement, lay a high-capacity weeping tile, install a sump pit, then seal walls with a waterproof membrane.
  • Best for: Finished basements or homes where exterior access is limited.

Explore Interior Waterproofing

Exterior Waterproofing

  • Cost Range: $100–$400 per linear foot
  • Involves full excavation around your foundation, waterproof membrane application, gravel backfill, and exterior drainage board.
  • Best for: Long-term protection and homes with visible foundation cracks.

Explore Exterior Waterproofing

Sump Pump Installation Cost In Toronto

A reliable sump pump is the heartbeat of any interior waterproofing system:

  • Replacement: Starts at $600
  • New Installation (w/ battery backup + alarm): Up to $3,400
  • Includes sealed basin, discharge piping, check valve, and optional Wi-Fi monitoring.
  • City Rebate: Up to $1,750 for eligible installations.

Learn About Sump Pumps

Backwater Valve Installation Cost In Toronto

Don’t let a sewer backup turn your home into a disaster zone:

  • Cost Range: $2,200–$4,500
  • Includes valve fitting, pipe cutting, concrete restoration, permit fees, and inspection.
  • City Rebate: Up to $1,250 when installed with a permit and inspection.

Learn About Backwater Valves

Toronto Flood Rebate Program (Up To $3,000)

The City of Toronto’s Basement Flooding Protection Subsidy Program (BFPSP) helps you offset installation costs:

ServiceRebate Amount
Sump Pump$1,750
Backwater Valve$1,250
Total Possible$3,000

Who’s Eligible?

  • Homeowners of single-family, duplex, or triplex homes
  • Work must be completed by a licensed contractor
  • Permits and city inspections are required
  • Downspouts may need to be disconnected

We handle every step—permit applications, city inspections, rebate filings—so you get your full rebate without stress.

Why Homeowners Choose Waterproofing4Less

  • Personalized Service: “They walked me through every form and inspection,” says customer John D.
  • Trusted Expertise: Over 2,000 Toronto basements protected.
  • Transparent Quotes: No surprise fees—ever.
  • Speedy Response: Free inspections within 48 hours.
  • Lifetime Peace of Mind: Industry-leading warranties on labor and materials.

Case Study: East York Basement Rescue

Last spring, the Nguyen family woke to ankle-deep water after a storm. We installed:

  • 42 ft of interior waterproofing
  • A battery-backed sump pump with alarm
  • A backwater valve (fully rebate-eligible)

Results:

  • Installation Cost: $8,700
  • Rebate Received: $3,000
  • Net Cost: $5,700

Their basement has remained bone-dry through torrential storms ever since.

Do You Need A Permit In Toronto?

Yes—for both sump pumps and backwater valves:

  • Obtain a plumbing permit via Toronto Building.
  • Schedule a city inspection after installation.
  • Submit all receipts and permit numbers to claim your rebate. We file permits, book inspections, and track your rebate… so you don’t have to.

Interior Vs. Exterior Waterproofing: Which Is Right For You?

FactorInterior WaterproofingExterior Waterproofing
CostLower ($75–$150/ft)Higher ($100–$400/ft)
DisruptionMinimal (inside work)High (excavation)
DurabilityGoodLong-term
Best ForFinished basementsHomes with foundation issues
Permit RequiredNoSometimes (dig permits)
Rebate EligibleYes (via sump pump)Yes (if combined)

Our experts assess your home’s age, soil, and foundation to recommend the ideal approach—or a blend of both for maximum protection.

🎁 Get Your Exact Price – You Might Qualify for Lower Rates or Rebates!

You don’t have to worry about the next storm. We make waterproofing simpleaffordable, and rebate-ready.
📞 Call 416-333-2212

Blogs

Common Basement Waterproofing Myths That People Still Believe
Backwater Valve Installation in Hamilton: Cost and Benefits
What Homeowners Should Know Sump Pump Replacement Cost
Leaking Basement Wall Repair Cost: What Impacts the Price?
Best Service
416‑333‑2212
Phone Number
info@waterproofing4less.ca
Email Address

Frequently Asked questions

What is a sump pump and why is it essential for Toronto homes?

A sump pump is a flood prevention device installed in a sump pit that automatically removes excess water, protecting your Toronto home from basement flooding and structural damage.

Look for signs such as water pooling, persistent dampness, and water stains in your basement—indications that your drainage system is overwhelmed.

Our process includes a detailed site assessment, excavation and sump pit creation, installation of a high-performance sump pump with a secure discharge line, and integration of a battery backup system with rigorous testing.

We install high-performance sump pumps from trusted brands like Zoeller and Liberty, ensuring durability and efficient water removal.

Yes, our systems feature battery backup and optional smart sensors to ensure continuous operation during power outages and extreme weather.

 We adhere strictly to local regulations by conducting comprehensive utility locates (for hydro, gas, Bell, Rogers, etc.) before excavation, ensuring safe and compliant installations.

Our installations come with a robust 25‑year transferable warranty on waterproofing work and a 3‑year manufacturer warranty on our mechanical sump pumps.

 Simply call us at 416‑333‑2212 or email info@waterproofing4less.ca to book your free consultation and receive a customized solution for your Toronto home.

Do you service homes outside Toronto as well?

Yes! We also offer Sump pump Services  in Burlington, Hamilton, Mississuaga and Oakville.

Get Your Drainage And Waterproofing Issues Resolved Today
Drainage And Waterproofing Issues
Scroll to Top