Backflow Testing, Repair, and Installation
CMS Plumbing is fully certified to perform backflow prevention testing, repair, and installation for all sizes and types of systems. Our team ensures that your property’s water supply remains safe, compliant, and protected from contamination.
A backflow prevention device is essential for keeping clean water separate from potential pollutants that can flow backward into the public water system due to pressure changes. Without proper prevention, harmful substances—such as chemicals, fertilizers, or bacteria—can enter the potable water supply, posing serious health risks.
To maintain safety and comply with local regulations, annual backflow testing is required. CMS Plumbing provides professional testing services to verify that your device is functioning correctly and meets all code requirements. If repairs or replacements are needed, our licensed technicians handle everything quickly and efficiently.
We also supply and install protective cages and enclosures to safeguard backflow assemblies from vandalism, theft, and environmental damage, extending the life of your system.
With CMS Plumbing, you can rely on expert service, certified technicians, and a commitment to water safety and compliance for both commercial and residential properties.
Top-Rated plumbers
In the Bay Area
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Free & Detailed Estimates ProvidedWe offer upfront quotes before we get to work.
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Emergency After-Hour ServiceWhen you need plumbing fast, don't hesitate to call!
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Over 40 Years of ExperienceWe take pride in being experts at all things plumbing.
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We Get the Job Done Right the First TimeExceeding your expectations is our #1 goal.
We Let out customers do the talking
Hear Their Thoughts on CMS Plumbing!
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"Awesome job"We recently had an out of hours plumbing issue tended to by CMS Plumbing. The operator taking our call was able to help us define the issue and connect us with Chris. He did an awesome job fixing our pinhole leak.- Sally Clark
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" I can tell you without any reservations CMS PLUMBING is hands down the best!!! "The work they performed and how they laid out the new copper is just stunning. Their craftsmanship is top notch bar none.- Henry M.
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"He took care of business and made the install easier for the next person also!"
Luis S. came out to replace my water heater. Our system is a little interesting with a recirc pump and heat exchange for radiant floor heat. He took care of business and made the install easier for the next person also! Highly recommended.⭐️⭐️⭐️⭐️⭐️
- Dave M. -
"On time and very professional"I was very pleased with Kevins Service today. He was on time and very professional. Thanks so much.- Rick Crouch
