Backflow Testing Services in Commerce City, Colorado
Finding a reliable backflow testing professional in Commerce City, Colorado is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 16 backflow testing companies serving Commerce City and surrounding communities including Thornton, Denver, Westminster.
Whether you need annual backflow testing, RPZ (Reduced Pressure Zone) valve inspection, or cross-connection control services, the providers listed below offer professional testing services for both residential and commercial properties throughout the Commerce City area.
Most water authorities in Colorado require annual testing and reporting for all backflow prevention assemblies. A certified backflow tester will inspect your devices, perform the required differential pressure tests, and file compliance reports with your local water authority.
Browse the listings below to compare ratings, read customer reviews, and contact backflow testing professionals near Commerce City directly. Use the filters above to narrow results by rating, review count, or specific services like RPZ testing and preventer installation.
Data source: Google Maps. Always verify licensing with your local water authority.
16 listed providers

Maven Fire Protection Services LLC
Testing Verified · Denver, CO · 3 mi

Backflow Consulting and Training
Testing Verified · Aurora, CO · 8 mi
“I am so pleased with the work our technician. Eric was friendly, professional, on time, and respectful of our time and space. He was wonderful to work with and I am grateful for getting our issue…”
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Blue Sky Plumbing, Heating, Cooling & Electric
Testing Verified · Denver, CO · 9 mi

Blue Sky Plumbing, Heating, Cooling & Electric
Testing Verified · Wheat Ridge, CO · 9 mi
Denver Backflow Specialists
Testing Verified · Denver, CO · 10 mi
“Dan has been a great contact for the annual backflow testing required by the city. He shows up on time, quick to perform service, and sends annual reminders to ensure I don’t forget. Will be using…”
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Backflow Tech
Lakewood, CO · 10 mi
“We have three locations that needed service. Janet at Backflow Tech jumped right in and took great care of us. It is always nice to find a company that has the same customer service mindset as…”
Read more on GoogleJ and M Backflow Testing
Testing Verified · Brighton, CO · 15 mi
“Marc was insanely responsive. I contacted him for a quote around 9am by email, and he was at our house and done with the work before noon. The Backflow tests had been uploaded to the city and invoice…”
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Frequently Asked Questions About Backflow Testing in Commerce City
Many certified backflow testers in Commerce City will file test reports directly with your local water authority or municipality on your behalf. Confirm this with your provider before scheduling. Some jurisdictions require the property owner to submit reports, while others accept direct submissions from the tester.
Backflow testing in Commerce City, Colorado typically costs between $50 and $200 per device, depending on the type of backflow preventer and the complexity of the installation. RPZ assemblies generally cost more to test than double check valve assemblies. Contact providers listed above for current pricing in the Commerce City area.
If a backflow preventer fails its annual test, the certified tester will diagnose the issue — often a worn check valve, damaged disc, or fouled relief valve. Most testers in Commerce City can repair the device on site and re-test it the same day. Your water authority may require the passing report within a set deadline.
Cross-connection control prevents contaminated water from flowing backwards into the clean water supply. Backflow prevention devices are installed at cross-connection points to protect public health. Regular testing ensures these devices function properly. Many municipalities in Colorado require cross-connection control programs for commercial properties and irrigation systems.
Many municipalities in Colorado require annual backflow testing for commercial and residential properties with backflow prevention devices. Your local water authority in Commerce City can confirm the exact testing schedule and deadlines for your area. Failing to test on time may result in fines or water service interruption.
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