Toronto Basement 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:

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Interior or Exterior Waterproofing
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Sump Pump Installation
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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.
Calculate Waterproofing cost now
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Waterproofing Cost Calculator!

Final Quote depends on Exact site inspection, accessibility , rebates and chosen system. Some homes qualify $1750 rebate on sump pump installation and approximately $1250 on Backwater valve in toronto region

To know more about Rebates, kindly visit our Rebates page.

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.

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.

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

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

Service Rebate 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:

  1. Obtain a plumbing permit via Toronto Building.
  2. 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?

Factor Interior Waterproofing Exterior Waterproofing
Cost Lower ($75–$150/ft) Higher ($100–$400/ft)
Disruption Minimal (inside work) High (excavation)
Durability Good Long-term
Best For Finished basements Homes with foundation issues
Permit Required No Sometimes (dig permits)
Rebate Eligible Yes (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 simple, affordable, and rebate-ready.

📞 Call 416-333-2212

Book your free on-site Assessment

What  They Say About our Company?

Great company. Excellent quote and advice from Andrew and a very hard working remedial team.  what was required and didn't upsell.

By Sophia Reynolds

Vasyl and the crew did such a great job on our basement! Fast, professional, affordable, and friendly! 👍🏼

By Logan Bennett

I have had waterproofing4Less do two separate jobs at my home.  The crew, was great, they are professionals, I am very pleased with the results.  The jobs were done on time, & clean up was superb.

By Ethan Parker

Carl and the crew at Waterproofing4Less are the best option in southern Ontario. Carl is honest and professional while delivering a high quality of work on schedule. They are patient and will answer your questions!

By Ava Collins

They replaced one of our window wells and waterproofed/repaired the foundation after we had a water issue in our basement.

By Grace Mitchell

Slava went above and beyond to fix our problem. He and his crew were very professional and did an amazing job!

By Jack Thompson

Testimonials

Daniel Brooks

Incredible customer service, very helpful explaining the project and what is involved. Super responsive, even after the project was over with a few follow up questions. Would call them immediately if I ever needed more water proofing services!

Olivia Monroe

Carl and his team did a fantastic job, waterproofing a small section of our foundation, installing a proper drain in a window well and putting everything back together, looking snazzy.  

Michael Landry

Waterproofing4Less are excellent in their trade.  I would highly recommend them if you need waterproofing.

Rachel Bennett

Super professional, fast, clean, and they know exactly what they’re doing. Extremely seamless service!! Thankful to this team

Daniel Brooks

Valentine of Waterproofing4Less provided excellent service and good value for a faucet replacement and a further faucet repair.

Emily Carson

Carl and the crew at Waterproofing4Less are the best option in southern Ontario. Carl is honest and professional while delivering a high quality of work on schedule.

frequently Asked questions

01
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.

02
How do I know if my Toronto home needs a sump pump?

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

03
What is your installation process for sump pumps in Toronto?

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.

04
Which brands of sump pumps do you install in Toronto?

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

05
Do your sump pump systems include battery backup and smart monitoring?

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

06
How do you ensure your sump pump installations comply with Toronto building codes?

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

07
What warranties do you offer for sump pump installations in Toronto?

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

08
How can I schedule a free consultation for sump pump installation in Toronto?

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

09
Do you service homes outside Toronto as well?

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

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Get Your Drainage And Waterproofing Issues Resolved Today

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Award Winning Company
Lifetime Warranty
Financing Available
20+ Industry Awards
Rebates up to $10,500
Award Winning Company
Lifetime Warranty
Financing Available
20+ Industry Awards
Award Winning Company
Lifetime Warranty
Financing Available
20+ Industry Awards
Rebates up to $10,500
Award Winning Company
Lifetime Warranty