Device type & size
An RPZ for a high-hazard site costs more than a small DCVA on a low-risk line.
Certified Installation
Backflow Preventer Installation
Compliant installation of RPZ and double check valve assemblies by OWWA-certified plumbers — sized and installed correctly for your property the first time.
When do you need a backflow preventer installed?
Commercial, industrial, institutional, and multi-residential properties across Ontario are required to install backflow prevention devices under the Safe Drinking Water Act and local municipal regulations. Installation is also needed when upgrading a non-compliant system or replacing a device that has failed beyond repair.
- New commercial, industrial & institutional construction
- Upgrading an outdated or non-compliant system
- Replacing a device that failed testing
- After receiving a municipal compliance notice
Certified Installation
Installed right, compliant from day one
Our certified technicians install the correct device for your property’s risk level and ensure every installation meets Toronto’s regulations. Newly installed devices undergo annual backflow testing immediately and are documented.
Right device selection
We assess your risk level and install the appropriate RPZ or DCVA.
Code-compliant work
Installations meet Ontario Building Code and municipal requirements.
Immediate testing
Every new device is tested on installation and documented.
Permits & reporting
We handle the paperwork and file results with the City.
How It Works
Our process
1
Assess
We evaluate your property’s backflow prevention needs and risk level.
2
Install
Our technicians install a compliant device that meets City regulations.
3
Test
The new device is tested immediately to confirm correct operation.
4
Report
We document and submit the results to the regulatory authority.
On the Job
A clean, code-compliant install
Every installation is sized for your property, neatly piped, and tagged. We test the new device immediately and document it so you start fully compliant.
Choosing the right backflow preventer
The right assembly depends on your property’s contamination risk level.
| Device | Suitability | Install complexity | Relative cost |
|---|---|---|---|
| Reduced Pressure Zone (RPZ) | High-risk areas | Moderate | Higher |
| Double Check Valve (DCV) | Low-risk areas | Simple | Moderate |
When do you need backflow preventer installation?
Installation is required when a property has no compliant device, when an existing system is being upgraded, or when a device has failed beyond repair. Across Ontario, owners of commercial and institutional properties must install backflow prevention under the Safe Drinking Water Act and local by-laws.
- New commercial, industrial, and institutional construction
- Upgrading an outdated or non-compliant water system
- Replacing a device that failed beyond economical repair
- After a municipal cross-connection survey flags a hazard
- When the City or region issues an installation notice
- Tenant fit-outs that add a new water service or hazard
What to expect during installation
We start with an on-site assessment to confirm the right device for your hazard level and the best location on the supply line. Our certified plumbers then install the assembly to Ontario Building Code and municipal standards, with clean, serviceable piping and proper clearances for future testing. Because a newly installed device must be tested before it’s considered compliant, we test it immediately, tag it, and submit the results — so your property is compliant from day one. Most standard installations are completed in a single visit; larger or retrofit jobs are scheduled to minimize downtime.
What affects backflow installation cost?
Installation cost depends on the device your property needs and the work involved in fitting it. We assess your site and provide a clear, itemized quote before any work begins.
Piping & location
Retrofits, tight spaces, or relocating the device add labour and materials.
Permits & approvals
Some municipalities require permits or inspections, which we coordinate.
Initial test & filing
Every new device is tested and documented on installation, included in your quote.
Need a device installed to meet a compliance notice? Contact us for a free quote tailored to your property.
Questions, Answered
Frequently asked questions
It is strongly recommended to use a certified professional. Correct installation and compliance with local regulations require the right expertise and tools, and the device must be tested by a certified tester after installation.
Property owners must install and maintain backflow preventers per municipal by-laws and the Safe Drinking Water Act, including inspection and certification by licensed professionals.
Yes. Every newly installed or replaced device is tested immediately, documented, and the results are filed with the City.
A municipal notice means your property must comply with backflow prevention regulations. We can assess your property, install a compliant device, and handle the testing and filing to resolve it.
A standard single-device installation is typically completed in one visit. Larger systems or retrofits are scheduled to minimize disruption to your operations.
Some municipalities require a permit or inspection. We handle the permitting and coordination as part of the job so it is done correctly.
It depends on your hazard level. High-hazard sites generally require a Reduced Pressure (RPZ) assembly, while lower-risk applications may use a Double Check Valve. We confirm the right device during the on-site assessment.
More Services
We handle every backflow need
Backflow Testing
Certified testing, digital reporting, and full compliance with Toronto’s Backflow Prevention Program — handled end-to-end for your property.
Backflow TestingRepair & Replacement
Failed a test or have a non-compliant device? We repair or replace it, retest, and re-file with the City — restoring compliance without unnecessary delays.
Repair & ReplacementCross-Connection Surveys
A systematic survey of your plumbing system to find and eliminate cross-connections — the points where contaminated water could enter your clean supply.
Cross-Connection SurveysReady to get started?
Book service or request a quote — we serve commercial and industrial properties across the GTA.