17 Years Toronto Plumbing CSA B64.10 Certified WSIB & $2M CGL Licensed · Permitted · Rebate-Filed Included Free

City of Toronto Backwater Valve Rebate Application in Toronto, ON | $1,750 Subsidy Filing Service

Last updated: October 6, 2026 · By The Backwater Valve Toronto Crew

Backwater Valve Installation Toronto files the City of Toronto Basement Flooding Protection Subsidy for you, at no extra fee, on every eligible backwater valve install. We confirm eligibility at the free assessment, pull the drain permit, book the City plumbing inspection, assemble the paid itemized invoice and sign-off, and submit the application. Then we track it until the cheque arrives, usually 6-8 weeks later. You can recover up to $1,250 for a valve, or $1,750 total with a sump pump. A licensed plumber signs every application. We built the company around this paperwork after seeing how many Toronto homeowners lost their rebate to a missing form.

The rebate service is included with every install, from $1,800 for an interior valve. We spec Mainline Backwater Valves, Mustee or Zurn models, with normally-open flapper or dual-flapper configurations depending on sewer lateral depth and risk tolerance. Every install includes drain permit coordination, backflow test certification, City inspection booking, and rebate paperwork across North York, Scarborough, Etobicoke, Toronto East, Toronto West and the rest of Toronto. Written 2-year workmanship warranty, WSIB coverage, $2M CGL.

$1,250 Valve + $500 Sump = $1,750

Filed and tracked for you on every eligible install. No extra fee.

Included with every install See full pricing

Book Free In-Home Drain Assessment

Includes sewer lateral camera scope and subsidy verification

Property Address / Neighbourhood

Phone Number

Installation Type Needed

I confirm I am the property homeowner or authorized property manager eligible for City of Toronto subsidy filing.

Written 2-Year Workmanship Warranty + City Permit Coordination

17 Years of Toronto Backwater Valve Experience
Backflow Certified to CSA B64.10
WSIB Registered, $2M CGL
2,400+ Installs Completed

Engineering Specifications

How We File Your Toronto Subsidy

The program is generous, but it's strict about paperwork. Here's every piece we handle so you don't have to.

Eligibility and Program Overview

Eligibility and program overview first. The City of Toronto Basement Flooding Protection Subsidy Program was expanded after the 2005 Finch Avenue washout, when a single storm flooded thousands of GTA basements. It pays homeowners up to $1,250 for a backwater valve and $500 more for a sump pump, for $1,750 in total. To qualify, the property has to be a Toronto residential address, the work has to be done by a licensed plumbing contractor under a drain permit, it has to pass City inspection, and the invoice must be paid in full. Mandatory Downspout Disconnection rules under Municipal Code Chapter 681 also apply. We check all of it at your free assessment.

Document Gathering

Document gathering is where most homeowner applications stall. The City needs a paid, zero-balance invoice that itemizes labour and materials separately, the drain permit number, the Toronto Building inspection sign-off, and the licensed plumbing contractor's licence number. If a sump pump was installed, it needs the details of that work too. Missing any one of these delays or sinks the claim. Because we pull the permit, do the install, book the inspection and write the invoice, we already have every document in the format the City expects. We assemble the packet the day the inspection passes and the invoice is paid, and we check every line before it goes in.

Submission and Timeline

Submission and timeline are straightforward once the packet is complete. We submit the application to Toronto Water's subsidy program shortly after inspection, well inside the program's deadline. The City reviews it, may ask a follow-up question, which we answer, and then issues the cheque directly to the homeowner. In our experience, that usually takes 6-8 weeks from submission. We track every application we file and check on any that run long. You'll get a copy of everything we submitted for your records. From your first call to the cheque in the mailbox, most Toronto homeowners are looking at about two to three months in total.

Combined Sump Pump $500 Bonus

The combined sump pump $500 bonus is the part many people miss. When a sump pump is installed and the foundation drain is disconnected from the sewer, the City adds up to $500 on top of the $1,250 valve subsidy. That's how a combo install reaches the full $1,750. The sump portion needs its own documentation: the basin and pump details, the weeping tile redirect, and the electrical done under ECRA/ESA. Because we do the combo as one job, all of it lands in a single, complete application. If you already have a sump pump that meets the program's requirements, we'll tell you whether any part of the bonus still applies.

5 Reasons Toronto Rebate Claims Get Delayed (and How We Avoid Them)

No drain permit. Without a City of Toronto drain permit, there’s no inspection and no subsidy. We file the permit before any concrete is cut.
An unpaid or vague invoice. The City wants a paid, zero-balance invoice with labour and materials itemized. Ours are written that way from the start.
No inspection sign-off. Toronto Building Inspection Services must pass the work. We book the inspector and meet them on site.
Missing contractor licence details. The licensed plumbing contractor’s information has to be on the application. Ours is on every one.
Downspouts or weeping tile still tied in. Mandatory Downspout Disconnection rules can hold up a claim. We check at the assessment, and redirect weeping tile on sump pump combo installs.

Is the Subsidy Paperwork Really That Complicated?

In our opinion, it isn’t complicated so much as unforgiving. Each document is simple. The trouble is that the permit, the inspection, the invoice and the licence details come from different people at different times, and the application only works if every one is present and matches.

Homeowners who file on their own often get stuck on the permit number or an invoice that lumps everything into one line. Because we control every step of the interior backwater valve installation, the paperwork is built as we go. That’s also why it’s included rather than sold as an add-on. If your claim is part of an insurance renewal, the same documents work for your insurer too. See insurance claim installs.

Why Toronto Homeowners Trust Us

Why Choose Backwater Valve Toronto for Rebate Application?

Seventeen years and 2,400+ installs across North York, Scarborough, Etobicoke and central Toronto.

1 City Rebate Expertise

Filing the subsidy is why this company exists. We've done it for thousands of Toronto homeowners.

2 Licensed Plumbing Contractor

The City requires a licensed contractor's details on every application, and ours are on every one.

3 Backflow Tested to CSA B64.10

Every valve is tested before inspection, so the sign-off and the subsidy go through cleanly.

4 No Extra Fee

Permit, inspection booking, document assembly and submission are included with every install.

5 Tracked Until Paid

We follow every application until the cheque arrives and answer any City questions.

6 Written 2-Year Workmanship Warranty

On the install behind the application. If paperwork is rejected over install documentation, we fix it at no cost.

Zero Hassle Process

How Our Rebate Application Process Works

How The Backwater Valve Toronto Crew protects your basement and files your City rebate.

Step 1
In-Home Drain Assessment and Camera Scope

We inspect the main drain, find where the sewer lateral leaves the house, check slope, and confirm whether the pipe is clay, cast iron or PVC. We also confirm your subsidy eligibility. The visit and camera scope are free.
Step 2
City of Toronto Drain Permit

We apply to Toronto Building for the drain permit on your behalf before any concrete is cut. No permit means no subsidy, so we never skip this step.
Step 3
Interior Pit Excavation or Exterior Dig

Dust-shrouded saw cut inside, or a shored excavation at the property line outside. The valve is set on 3/4-inch clear stone bedding with cleanout access.

Some installers skip the backflow test, which voids both the warranty and the subsidy. We test every valve under load.
Step 4
Valve Installation, Backflow Test and Mitchell Harrington Quality Review

We backflow-test the new valve, record the results and photos, and founder Mitchell Harrington reviews the test documentation and CSA B64.10 compliance before the pit is closed.
Step 5
City Inspection and Rebate Submission

The City inspector signs off, then we file the Basement Flooding Protection Subsidy paperwork. The cheque typically arrives 6-8 weeks after submission.

Want a written price for rebate application before you commit?

The assessment and camera scope are free. You see the CAD price in writing before any work starts.

Call (437) 782-5622 Book Free Assessment

Transparent CAD Pricing

What the Rebate Service Costs (Included With Every Install)

The rebate application service costs nothing extra. It's included with every eligible backwater valve install, from a $1,800 interior valve to a $9,500 combo with a sump pump. The drain permit fee and inspection booking are part of the install price.

What matters is the net cost after the cheque. A $2,600 interior install becomes about $1,350 after the $1,250 subsidy. A $5,800 combo becomes about $4,050 after $1,750. Use the cost estimator to see your own range net of rebate.

What affects the price	How it moves your quote
Valve only	Up to $1,250 back from the City.
Valve + sump pump	Up to $1,750 back in total.
Replacement valve	Depends on the original install; checked before booking.

Published Price

Rebate Application Included

included with every install

Up to $1,250 base + $500 sump bonus = $1,750

Eligibility check at the free assessment
Drain permit and City inspection booking
Paid, itemized invoice and sign-off assembled
Submission and tracking until the cheque arrives

Get My Exact Price Try the Cost Estimator See every price band

Toronto Backwater Valve Rebate 2026: Step by Step

Here is the 2026 rebate in order. Seven steps, and two of them are where most do-it-yourself claims stall. On every eligible install, steps two through six are handled for you at no extra charge.

Step 1. Confirm the home is a Toronto residential property on the City's eligibility map, then book a free assessment with a licensed plumber. The assessment includes a sewer lateral camera scope and a valve sizing recommendation. Mississauga, Vaughan and other GTA municipalities run their own programs, and we check what applies before any paperwork starts.

Step 2. The plumber applies for a City of Toronto drain permit through Toronto Building. Permits usually come back within a few business days. This is where many homeowners get stuck filing on their own, because the application needs a licensed plumber's licence number and a scope match.

Step 3. The valve is installed to CSA B64.10 and backflow-tested. We use City-approved Mainline, Mustee, Zurn or Watts bodies. If a sump pump is part of the project, discharge is piped outside through a check valve to a freeze-proof outlet, with ECRA/ESA-wired power on a dedicated circuit.

Step 4. A City plumbing inspector attends and signs off the install. We book the inspection as soon as the backflow test passes, and we meet the inspector so you do not need to take time off. The pit is then closed and the floor patched to a walkable finish.

Step 5. You pay the invoice in full and we issue an itemized, zero-balance copy. The City rejects any application where the invoice is unpaid, partially paid or missing itemization of labour and materials. This is the second place most do-it-yourself claims fail.

Step 6. The packet goes in with the paid invoice, the drain permit number, the inspector's result and the plumber's licence details. Downspout disconnection has to be in place or in progress. We assemble, review and submit the full packet, then track it through City processing.

Step 7. The City reviews and mails the cheque, usually 6-8 weeks after submission. The cheque goes directly to the homeowner. We follow up if processing stretches, and we respond to any City clarification requests on your behalf.

The two failure points are Step 2 and Step 5. Permits submitted by an unlicensed party get bounced on the spot, and invoices without a zero balance or line-item detail hold up the final cheque. Both are what we built the service around.

On The Job

Recent Rebate Application Work Across Toronto

Group crew photos from real Toronto basements and property lines. Tap any photo to enlarge.

Customer Proof

What Customers Say About Our Rebate Application

"I tried filing the subsidy forms myself and got stuck on the permit number and the itemized invoice. They took it over and the cheque came in seven weeks."

Linda V., Forest Hill

Rebate filing with interior install

"Did not realise the sump pump added $500 to the subsidy. They filed both parts and we got the full $1,750."

Raj P., Woburn

Rebate filing with combo install

"Our first application came back rejected because the invoice did not break out labour versus materials. The crew re-issued it line-by-line, re-submitted the same week, and the City approved it the second pass. $1,250 cheque landed nine weeks later."

Marissa C., Rouge Hill

Rebate re-filing with interior install $2,350 CAD

Clear Answers

Rebate Application FAQs

Is there a fee for the rebate application service?

No. Subsidy paperwork preparation and submission is included with every install.

How long until the subsidy cheque arrives?

Usually 6-8 weeks after submission, once the City inspection is signed off and the invoice is paid in full.

What documents does the City need?

A paid, itemized invoice with zero balance, the drain permit number, inspection sign-off and the licensed plumber's details. We assemble all of it.

Does the Toronto subsidy apply in Mississauga or Vaughan?

No. The City of Toronto program covers Toronto addresses only. Other GTA municipalities run their own programs, and we can tell you what applies at the assessment.

How much is the Toronto backwater valve subsidy?

Up to $1,250 for a backwater valve, plus up to $500 for a sump pump, for $1,750 in total.

Can I apply if I already had the valve installed?

Possibly, if it was done under a permit by a licensed plumber, passed inspection and you have the paid itemized invoice. We can review your documents.

Who receives the cheque?

The homeowner. The City mails it directly to you, not to us.

What if the City asks a question about my application?

We answer it. Because we have the permit, inspection and invoice records, follow-ups are usually resolved in days.

Do downspouts affect my eligibility?

They can. Toronto's Mandatory Downspout Disconnection rules apply, and we check your downspouts at the assessment so they don't hold up the claim.

Still have a question?

A licensed plumber can answer it on the phone or at your free assessment.

Call (437) 782-5622

Keep Exploring

Installation Types

Combination Backwater Valve and Sump Pump Installation

Valve plus sealed sump basin and pump: protection against sewer surge and groundwater, eligible for the full $1,750 subsidy.

$5,500 - $9,500 Details →

Installation Types

Interior Backwater Valve Installation

Pit-based backwater valve installed under your basement floor, with drain permit, backflow test and subsidy filing included.

$1,800 - $3,200 Details →

Specialty and Compliance

Insurance Claim Backwater Valve Installation

Post-flood install with adjuster coordination and insurer-ready invoicing, for homeowners whose renewal depends on a valve.

$1,800 - $4,500 Details →

See How Much the City Will Send Back

Your free assessment confirms eligibility, sizing and the paperwork path. We file it, track it, and you cash the cheque.

Claim Up to $1,750 City Rebate Call (437) 782-5622

Free camera scope
|
Published CAD pricing
|
Written 2-year workmanship warranty