Annual Testing
Certified DCVA & RP testing with digital reports, tagging, and submission.
Backflow Testing
DCVA & RP Annual Testing — Markham
Backflow Preventer Testing in Markham
Certified annual testing, reporting, and full compliance for commercial, industrial, and institutional properties in Markham.
City of Markham · By-law 2012-29
Backflow requirements in Markham
Markham’s backflow prevention by-law (By-law 2012-29) is designed to reduce the chance of water contamination from backflow at cross connections. Commercial, industrial, and institutional property owners are required to protect the municipal supply with tested backflow prevention devices.
- Governed by City of Markham By-law 2012-29
- Targets contamination risk at cross connections
- Annual testing by a certified tester
- Applies to commercial, industrial and institutional properties
Markham’s program emphasizes proactive cross-connection control — a survey is often the first step.
Learn more about the backflow regulations by town, or see how our annual backflow testing keeps your Markham property compliant.
Real Work in Markham
Commercial & industrial expertise
From single devices to multi-assembly systems, we test, install, and maintain backflow preventers on real Markham properties — neatly piped, properly tagged, and documented for City of Markham.
What We Do in Markham
Complete backflow compliance, handled locally
Installation
Compliant RPZ and double check valve installation for Markham properties.
InstallationRepair & Replacement
Fast repair or replacement of failed devices, with retesting and re-filing.
Repair & ReplacementCross-Connection Surveys
Identify and eliminate contamination risks across your plumbing system.
CCC SurveysHow It Works
Compliance handled end-to-end
1
Assess
We locate and assess every backflow device on your Markham property.
2
Test
Certified testing with NIST-calibrated equipment, on your schedule.
3
Report & Tag
Digital test reports and proper device tagging for your records.
4
Submit
We file results with City of Markham so you stay compliant.
Why Markham Chooses Us
Certified, local, and compliance-focused
With decades of plumbing experience, OWWA-certified testers, and NIST-calibrated equipment, we make backflow compliance in Markham straightforward.
Certified testers
OWWA-certified, with calibrated, NIST-traceable equipment.
End-to-end
Test, tag, repair, replace, and file — one team.
Questions, Answered
Backflow testing in Markham
Markham’s backflow prevention by-law (By-law 2012-29) is designed to reduce the chance of water contamination from backflow at cross connections. Commercial, industrial, and institutional property owners are required to protect the municipal supply with tested backflow prevention devices.
Backflow prevention devices must be tested annually by a certified tester, with results documented for City of Markham. Newly installed or repaired devices must be tested right away.
Yes. We provide digital test reports, tag the device, and handle the documentation and submission so your property stays compliant.
We handle the repair or replacement, retest the device, and re-file the results to restore compliance without unnecessary delays.
Commercial, industrial, institutional, and Part 3 residential properties in Markham are covered under By-law 2012-29. Any property with a backflow device installed, or one flagged through a cross-connection survey, must keep it tested annually.
Yes — we provide certified backflow testing across Markham and the surrounding York Region area, for commercial and industrial properties of every size. Contact us to confirm coverage and book.
Service Area
We also serve nearby areas
Vaughan
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Certified testing, reporting, and submission handled for you.