Backflow Preventer Testing in Markham
From the first call to the last detail, Salem Plumbing keeps Backflow Preventer Testing in Markham simple.

Backflow Preventer Testing in Markham
Backflow Preventer Testing is a vital service to ensure that contaminated water does not flow back into your clean water supply, especially important in areas with older plumbing or well systems. Property owners need this testing annually to comply with Oregon plumbing codes and to prevent health hazards caused by backflow.
Neglecting backflow preventer testing can lead to contamination of the municipal or private water supply, posing health risks to residents. Failing to test and maintain these devices may result in costly fines and potential water service interruptions.
What's included in Backflow Preventer Testing
The difference
A crew that knows Markham — its streets, access, and parking.
Quick turnaround — most Markham jobs booked within a day or two.
Care for your property and your neighbours while we work.
Work done to code and signed off before we leave.
Flat rates you can plan around, with no surprise add-ons.
Serving Markham & nearby
Our crews work across Markham and the surrounding Portland area every week. From South Burlingame and Hillsdale to the quiet residential streets, Markham property owners trust Salem Plumbing for Backflow Preventer Testing done right the first time.
Serving Markham and areas near South Burlingame, Hillsdale, Hayhurst, Multnomah Village.
Getting started is easy
Quick estimate
Share the details and get a fast, no-obligation quote.
Schedule it
Pick a time that works — evenings and weekends included.
Sit back
We deliver Backflow Preventer Testing in Markham and follow up after.
What affects the cost of Backflow Preventer Testing
Frequently asked questions
How often should my backflow preventer be tested?
Oregon code requires annual testing for most backflow prevention assemblies.
What happens if my backflow preventer fails the test?
It must be repaired or replaced promptly to ensure continued protection of your water supply.
Is backflow testing a DIY task?
No, it requires a certified professional with specialized testing equipment and knowledge of plumbing codes.
Are there any permits needed for backflow testing?
Yes, licensed plumbers typically pull permits and provide certification to comply with local regulations.
Can you handle commercial jobs?
Yes. We cover both residential and commercial Backflow Preventer Testing in Markham.
Do you give quotes upfront?
Yes — you get a clear, flat price before any work begins, with no hidden fees.
What Salem homeowners say
“Had them out for a routine plumbing inspection. The technician was very knowledgeable and gave us great advice for maintaining our system.”
“Our pipes burst during the last freeze, and Salem Plumbing was a lifesaver. They responded fast and fixed everything efficiently.”
“Excellent service! They cleared a stubborn drain that other companies couldn't handle. Highly recommend their expertise.”
We stand behind every repair and installation with a comprehensive warranty on parts and labor. If you experience an issue related to our work, we'll make it right.