Backflow Preventer Installation in Toronto
Licensed & Insured Drain Repairs
Backflow Valve Inspection and Testing
Residential and Commercial
Obligation free consultation
Adherence to Toronto's Water Supply By-law
Why Your Toronto Property Needs a Backflow Preventer
You’re opening or renovating a commercial unit
Your building is classified as a moderate- or severe-hazard property
You received a notice from Toronto Water
You added new equipment (irrigation, boilers, chemical feed systems, fire protection, etc.)
Your previous device failed beyond repair
What We Install
RP / RPZ (Reduced Pressure Zone) Devices
medical/dental facilities
labs
industrial processes
chemical storage or mixing
commercial kitchens
DCVA (Double Check Valve Assembly)
retail units
offices
apartment buildings
fire lines (non-chemical)
irrigation systems
Our Backflow Preventer Installation Process
1. On-Site Cross-Connection Survey
2. Proper Device Sizing & Selection
3. Code-Compliant Installation
full-port shut-off valves
test cocks positioned for easy access
proper clearance for annual testing
supports and drainage (RP relief valves must discharge safely)
4. First-Year Certification (Form B)
perform the initial differential-pressure test
complete the Form B report
attach the device test tag
submit documentation to Toronto Water
5. Annual Reminders
Signs You Need a New Backflow Preventer Installed
continuous water from relief valve
unit cracked from freezing
corroded shut-off valves
repeated test failures
change in building hazard classification
major renovations or equipment upgrades
Why Toronto Chooses MT Drains for Backflow Installation
Certified & Licensed
Licensed plumbers who are OWWA- and ASSE-certified for backflow installation and testing.
Competitive Pricing
No surprises, no upselling — just reliable testing.
Repairs & Rebuilds Available on the Same Visit
If you’re upgrading from a failed device, our trucks carry rebuild kits and new assemblies.
Experience With Commercial & Industrial Sites
We handle restaurants, high-rises, factories, clinics, and institutional buildings across Toronto.
Full Compliance Handling
Sizing, installation, Form B, permits, and municipal communication — handled start to finish.
Backflow Preventer Installation Cost in Toronto
DCVA installation: $950–$1,800
RP / RPZ installation: $1,400–$3,200
Replacement of existing unit: slightly lower depending on piping changes
Request Quote For Backflow Preventer Installation
Who We Install Backflow Preventers For
Commercial plazas & restaurants
Industrial and manufacturing sites
Dental & medical offices
Condo and apartment buildings
Schools & institutional facilities
Irrigation systems
Car washes, auto shops, laundromats
Any property with moderate or severe hazard classification
