Rebate Available:

Backwater Valve Installation Burlington

Complete Guide & Expert Installation

Prevent costly sewage backup damage with professional backwater valve installation in Burlington. Expert technicians with 15+ years of proven experience. City rebates help offset installation costs.

Lifetime Warranty | Licensed & Insured | Same-Day Estimates

What is a Backwater Valve?

Also known as a backflow valve or sewage backup preventer, a backwater valve is a specialized one-way device we install on your property's main drainage line. With over 27 years serving Burlington homeowners, Canada Waterproofers has seen firsthand how these valves prevent costly sewage backups during severe rainfall events and city sewer system capacity issues.

How it works?

  • Installed in your basement floor on the main sewer line

  • Contains a flap that opens to allow wastewater to flow out

  • Automatically closes when water tries to flow backward

  • Prevents city sewer backup from entering your home

Why Burlington Homes Need One

  • Aging combined sewer system prone to overflows

  • Increasing frequency of heavy rainfall events

  • Many older homes lack backflow protection

  • Insurance may require or reward having one installed

What types of Backwater Valves We Install

Normally Closed Valve

Opens only when water flows out, providing maximum protection against backflow.

Normally Open Valve

Stays open during normal use, closes when backflow is detected. Most common type.

Full-Port Gate Valve

Premium option with manual override and clear access cover for inspection.

LOGO 3 (3)

Benefits of having a Backwater Valve Installed A small investment that provides significant protection for your home, health, and finances.

icon-backwater@2x

Sewage Backup Protection

Protects your basement from sewage backups during storms or overwhelmed sewer systems, keeping your home cleaner and your family healthier.

icon-backwater@2x

Insurance Benefits

Many insurance companies give discounts to homeowners with backwater valves, and some policies now even require them to cover sewer backups.

icon-backwater@2x

Halton Region Rebate

Eligible for up to $675 in rebates through Halton Region Enhanced Basement Flooding Prevention Subsidy

icon-backwater@2x

Peace of Mind

Say goodbye to the stress of a flooded basement—your home is safeguarded 24/7, whether you’re home or away.

icon-backwater@2x

Property Value Protection

Safeguard your home from costly sewage damage—one sewer backup can lead to $10,000–$50,000 in damage and lower your property value.

icon-backwater@2x

Health & Safety

Sewage contains harmful germs and parasites. Installing a backwater valve prevents these from reaching your living space.

$
Max City Rebate
$K+
Avg. Backup Damage Cost
%
Typical Insurance Savings
LOGO 3 (3)

Our 6-Step Installation Process Professional Backwater Valve installation by licensed plumbers. Most installations completed in one day.

Step 1
Step 2
Step 3
Step 4
Step 5
Step 5

Free Assessment

We inspect your plumbing system, locate your main sewer line, and determine the best valve location and type for your home.

Permit & Rebate Application

We handle all City permit applications and help you apply for the Basement Flooding Protection Subsidy.

Line Location

Using specialized equipment, we precisely locate your main sewer line and mark the excavation area in your basement floor.

Excavation

We carefully cut and remove a section of your basement floor to access the main sewer line where the valve will be installed. Alternatively, an exterior backwater valve can be installed. 

Valve Installation

The backwater valve is professionally installed and connected to your sewer line, with an accessible cleanout for maintenance.

Testing & Restoration

We test the valve operation, restore your basement floor with concrete, and complete a final inspection with the city.

What to Expect?

1 Day Typical Installation

4-6 Hours Water Shutoff

24 Hours Concrete Cure Time

LOGO 3 (3)

Backwater Valve Installation Cost in Burlington Honest, upfront pricing—know exactly what you’re paying. Get a detailed quote at your complimentary consultation.

Inside Installation

$2,000 - $3,500 Before rebates

  • Standard normally-open valve
  • Single floor penetration
  • Concrete restoration included
  • 10-year warranty

Full-Port Gate Valve

$2,700 - $4,500 Before rebates

  • Premium full-port valve
  • Clear inspection cover
  • Manual override feature
  • Easier maintenance access
  • Lifetime valve warranty

Complex Installation

$4,500+ Before rebates

  • Multiple valve installation
  • Difficult access situations
  • Additional plumbing work
  • Floor drain disconnection
  • Custom solutions
LOGO 3 (3)
photo of Carl McDowell

Canada Waterproofers is here to help

No job is too big or too small. Get in touch with us!

Halton Region Rebate Program Canada Waterproofers is a Halton preferred contractor which means you can enjoy the full Halton Region Enhanced Basement Flooding Prevention Subsidy Program The Halton Region Enhanced Basement Flooding Prevention Subsidy Program provides financial assistance to Burlington homeowners for flood prevention improvements. The program offers 50% subsidies on eligible installations with the following maximum amounts

Rebate Amounts

  • Backwater valve installation: Up to $675

  • Sump pump & weeping tile disconnect: $5000 Must be installed by a proffered Halton contractor, as Canada Waterproofers is

  • Sewer lateral (pipe) lining or repair: $2000

  • Downspout disconnection: $500

Sample Savings

  • Interior valve install: $2,400
  • City rebate: -$675
  • Your cost: $2,037 plus permit
  • Plus potential insurance savings!
LOGO 3 (3)

Common Sewage Backup Causes in Burlington Recognizing the dangers helps you see why countless Burlington residents are investing in backwater valve protection.

Heavy Rainfall Backups

Halton Region's municipal sewer network can exceed capacity during heavy rainfall events, pushing wastewater back up into your property's drainage system.


Our Solution

A backwater valve automatically closes your sewer line during surges, preventing sewage from backing up into your home.

Municipal System Overloads

Even on dry days, city sewer maintenance, blockages, or capacity problems can lead to backups.


Our Solution

Your home stays safe no matter what’s happening with the city’s sewer system.

Aging Infrastructure

Many established Burlington neighborhoods operate with 50-100 year old sewer lines susceptible to deterioration and backup events.


Our Solution

Don’t leave your home at the mercy of old city infrastructure—take protection into your own hands.

Tree Root Intrusion

Tree roots can clog neighborhood sewer lines, leading to backups that impact several homes.


Our Solution

A backwater valve shields your home from sewage issues caused by your neighbors’ plumbing.

LOGO 3 (3)

Homeowner's Toolkit

Waterproofing Cost Calculator

Add one or more services to build your estimate. For an exact quote, please contact our team.

© 2026 Canada Waterproofers. All rights reserved. Unauthorized reproduction of this tool is prohibited.

' + '
' + '' + '
' + '
ESTIMATE
' + '
Date: ' + getTodayDate() + '
' + '
canadawaterproofers.com
' + '
Tel: 416-333-LEAK
' + '
' + '
' + '' + '' + '' + '' + '' + '' + '' + rows + '' + '' + '' + '' + '' + '' + '' + '
ServiceQty / FtCost (CAD)
Grand Total (Estimated)' + totalStr + '
' + '
' + '⚠ Important – Estimate Only
' + 'This document is a preliminary estimate generated by the Canada Waterproofers online calculator. ' + 'It is provided for budgeting purposes only and does not constitute a binding quote or contract. ' + 'All prices are in Canadian dollars and exclude HST. ' + 'Final pricing must be confirmed by a Canada Waterproofers representative following an on-site inspection. ' + 'Actual costs may vary based on site conditions, accessibility, soil type, and scope of work.' + '
' + '
' + 'Ready for your exact quote?
' + 'Contact Canada Waterproofers to schedule a free on-site assessment.
' + '📞 416-333-LEAK  |  ' + '🌐 canadawaterproofers.com/contact' + '
' + '' + '
' + '' + '
' + ''; var win = window.open('', '_blank'); win.document.write(html); win.document.close(); win.focus(); } serviceEl.addEventListener('change', updateUI); document.querySelectorAll('input[name="cw-finished"], input[name="cw-underpinned"]') .forEach(function (el) { el.addEventListener('change', updateInteriorRateDisplay); }); addBtn.addEventListener('click', function (e) { e.preventDefault(); addItem(); }); tbody.addEventListener('click', function (e) { var btn = e.target.closest('button[data-id]'); if (btn) { var id = Number(btn.getAttribute('data-id')); items = items.filter(function (i) { return i.id !== id; }); renderTable(); } }); clearBtn.addEventListener('click', function () { items = []; renderTable(); }); printBtn.addEventListener('click', function (e) { e.preventDefault(); if (items.length === 0) { alert('Please add at least one service to your estimate before printing.'); return; } printEstimate(); }); updateUI(); })();
Canada Waterproofers

Is Your Basement at Risk?

Answer 7 quick questions to get your free Basement Health Score and find out what — if anything — needs attention.

⏱ Takes less than 2 minutes  |  🔒 No personal info required to see your results
Canada Waterproofers

Interior vs. Exterior Waterproofing

Answer a few questions about your situation and we'll recommend the best waterproofing approach for your home.

Canada Waterproofers

Spring Flood Risk Checker

Spring is the highest-risk season for basement flooding in the GTA. Find out how prepared your home is before the thaw hits.

🌨️ Based on local GTA spring conditions including snowmelt, freeze-thaw cycles, and seasonal rainfall patterns.
Canada Waterproofers

Water Damage Cost Calculator

See what a single basement flood or ongoing water damage could cost you — versus the price of waterproofing it today.

💧 The average unaddressed basement water damage claim in Ontario costs $43,000+ — often only partially covered by insurance.
LOGO 3 (3)

Recent Burlington's Project Highlights See how we've helped Burlington's homeowners solve their basement water problems with our professional waterproofing solutions.

LOGO 3 (3)

Frequently Asked Questions Get answers to the most common questions about exterior basement waterproofing in Burlington.

LOGO 3 (3)

What Burlington Homeowners Say Read verified reviews from real customers who trusted us with their basement waterproofing projects.

LOGO 3 (3)