Backflow Testing Services in Mason, Ohio
Finding a reliable backflow testing professional in Mason, Ohio is essential for maintaining a safe water supply and staying in compliance with local regulations. Our directory lists 22 backflow testing companies serving Mason and surrounding communities including Middletown, Fairfield, Hamilton.
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 Mason area.
Most water authorities in Ohio 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 Mason 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.
22 listed providers

Nixco Plumbing Inc.
Testing Verified · Mason, OH · 2 mi
“❄️ When a snow emergency ends, and your week begins at 8:00 AM promptly, you need pros who show up on time and ready to make an impact! CHECK, CHECK, DONE! Nixco Plumbing scores! At 9 degrees and…”
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Backflow Prevention Services
Testing Verified · Liberty Township, OH · 4 mi
“Another great experience in 2025 for a backflow test. Highly recommend Backflow Prevention Services. Responsive, reasonably priced and knowledgeable, Hired to test my irrigation backflow. Tim found a…”
Read more on GoogleCopper Pipe Plumbing Services Inc.
Testing Verified · Maineville, OH · 6 mi

Mr. Rooter Plumbing of Greater Cincinnati
Cincinnati, OH · 9 mi
“Cannot rave enough at the amazing techs and excellent service I was provided today using Mr Rooter! Had an unexpected water line bust overnight (something I’ve never witnessed or experienced anything…”
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Nicholson Lab Inc
Testing Verified · West Chester Township, OH · 9 mi

Dupps Plumbing, Inc.
Hamilton, OH · 11 mi
“We experienced an emergency shower leak that affected our family room ceiling. Dupps promptly responded on a Saturday evening when other companies were only available Monday. Dan arrived on time and…”
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Cinti Master Plumbers Association
Cincinnati, OH · 11 mi
“Joyce does a great job running this. I am in the restoration business but have met some great people through this organization.”
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Queen City Mechanicals
Testing Verified · Cincinnati, OH · 14 mi

Blue Chip Plumbing
Testing Verified · Cincinnati, OH · 14 mi
“We’ve had Peter Z. from Blue Chip Plumbing out to our home for two different issues - one involving our home's water pressure and another to replace a decades-old bathroom sink - and we couldn’t be…”
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Nieman Plumbing
Cincinnati, OH · 14 mi
“We cannot say enough good things about Nieman Plumbing. Brennan and Ian arrived this morning to address problems with the cast iron drains below the basement slab of our 60 year old ranch…”
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Apollo Home
Cincinnati, OH · 15 mi
“Nate has an extensive grasp of how underground plumbing works. He is knowledgeable, meticulous, and professional. His piping is a work of art. He fixed a slab leak that another company completely…”
Read more on GoogleRoto-Rooter Plumbing & Water Cleanup
Testing Verified · Norwood, OH · 15 mi
“I had a great customer service experience with roto rooter. My wife and I needed our sump pump replaced and the problem was immediately identified by a tech, Giovanni, who showed up well within the 2…”
Read more on GoogleAllied Reddi-Rooter
Cincinnati, OH · 15 mi
“Wow! So impressed and grateful to Allied. I needed a sewer line inspection done same day. I called and they set me up with an appointment range of 4-7pm. Rik and his assistant arrived PROMPTLY at 4pm…”
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Halpin Plumbing Inc
Testing Verified · Cincinnati, OH · 15 mi
“Halpin recently completed a complex, three-day job at our residence. We are extremely pleased with every aspect of the service. We want to specifically commend Geoff and Rob. They were timely…”
Read more on GoogleThe Lawn Management Sprinkler Company
Testing Verified · Cincinnati, OH · 16 mi
“I highly recommend Lawn Management Sprinkler Co. David Grant, Owner, came out to give me an estimate. He is extremely knowledgeable and easy to work with. Ashley and Danielle, who work in the office…”
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Archer Plumbing Co Inc
Cincinnati, OH · 16 mi
“Work Performed June 12, 2019 This was my first time looking for a truly real, qualified plumber, because I could no longer trust the work of pseudo plumbers. I had a busted indoor basement pipeline…”
Read more on GooglePacon Plumbing School
Testing Verified · Cincinnati, OH · 18 mi
“Great class, Tim did an excellent job of going over material and explaining everything. Tony was great while we got signed up and he found us a class right away. Big thumbs up. Thank you gentleman”
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Ken Herbert Plumbing
Testing Verified · Cincinnati, OH · 18 mi
“Highly recommend Ken Herbert plumbing company. They helped us recover from a plumbing nightmare for a reasonable cost. All the staff was very efficient, friendly, knowledgeable, professional and…”
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Tarvin Plumbing
Cincinnati, OH · 18 mi
“Summary: Tarvin Plumbing performed two full bathroom remodels + sewer repair for me last year, and they were the trifecta of everything a homeowner wants: On time, on budget, and wonderful quality…”
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Zins Plumbing
Testing Verified · Cincinnati, OH · 19 mi
“The only word which accurately describes the service I received from this company is "Remarkable." I previously owed rental properties and used plumbers many time for interior plumbing and sump pump…”
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Frequently Asked Questions About Backflow Testing in Mason
RPZ (Reduced Pressure Zone) testing verifies that your reduced pressure backflow preventer is functioning correctly to protect your water supply from contamination. A certified tester uses specialized gauges to measure differential pressures across the assembly. RPZ devices are typically required for high-hazard connections.
Most jurisdictions in Ohio require backflow testers to hold a current certification from an approved training program, typically involving classroom instruction, a hands-on practical exam, and continuing education credits. Some municipalities maintain their own approved-tester lists. Always verify certification before hiring.
Residential tests typically involve a single PVB or DCVA device and are quicker to complete. Commercial properties in Mason often have multiple assemblies, RPZ devices, and fire-line backflow preventers that require more time and specialized equipment. Pricing and scheduling may differ for each type.
Many certified backflow testers in Mason 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 Mason, Ohio 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 Mason area.
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