Backflow Prevention in Houston, TX
Protect your drinking water from contamination. Heaton Plumbing tests, repairs, replaces, and installs backflow prevention assemblies for commercial properties and homes across Greater Houston.
Need backflow testing or repair? Call now: (281) 842-7473
Keep Your Drinking Water Safe
When water flows the wrong way through a plumbing system, contaminated water can be pulled or pushed back into the clean water supply. A working backflow prevention assembly stops that from happening, protecting your building and the public water system.
Heaton Plumbing tests backflow assemblies, repairs those that fail, replaces outdated units, and installs new protection where it is needed. Backflow prevention is part of our complete commercial plumbing services.
Done Right or It Is Free
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2-Year Repair Warranty
Parts and labor on repair work.
Testing & Documentation
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Backflow Prevention Services
Backflow Testing
Testing to confirm your assembly is working properly.
Backflow Repair
Replacement of worn seals, springs, check modules, and relief valves.
Assembly Replacement
Replacement of corroded, damaged, or outdated assemblies.
New Installation
Backflow protection installed where cross-connections exist.
Relief Valve Leaks
Diagnosis and repair of assemblies that are discharging water.
Ongoing Maintenance
Support to keep your assemblies working year after year.
Types of Backflow Prevention
The right protection depends on the application and level of risk.
| Type | How It Works | Common Use |
|---|---|---|
| Reduced pressure (RP) assembly | Two check valves plus a relief valve | Higher-risk cross-connections |
| Double check valve assembly | Two independent check valves | Lower-risk applications |
| Air gap | Physical separation between outlet and contamination source | Simple, highly reliable protection |
Where Backflow Protection Is Common
- Commercial kitchens and restaurants
- Medical and dental offices
- Buildings with boilers
- Chemical dispensing systems
- Swimming pools and spas
- Multi-unit and mixed-use buildings
Need Backflow Testing in Houston?
Call Heaton Plumbing to test, repair, or replace your assembly.
Our Backflow Service Process
Inspect
We locate and inspect the assembly.
Test
We test the assembly’s check valves and relief valve.
Repair or Replace
We repair failed components or replace the assembly.
Document
We provide clear results for your records.
Backflow Prevention Across Greater Houston
We provide backflow testing and repair throughout Harris, Fort Bend, Brazoria, and Galveston counties, including:
Katy
Sugar Land
Cypress
Spring
Jersey Village
Cinco Ranch
Missouri City
Humble
Pearland
Pasadena
La Porte
Not sure if we cover your neighborhood? See all areas we serve.
Backflow Prevention FAQs
What is backflow?
Backflow happens when water flows in the wrong direction, from a building’s plumbing back toward the clean public water supply. It can be caused by backpressure, when pressure inside the building exceeds the supply pressure, or backsiphonage, when a sudden drop in supply pressure pulls water backward.
What is a backflow preventer?
A backflow preventer is an assembly installed on a water line that allows water to flow in only one direction, protecting the drinking water supply from contamination.
How often does a backflow preventer need to be tested?
Testing frequency depends on local requirements, your water provider, and the type of property. Many commercial properties are required to test assemblies at regular intervals.
Why did my backflow preventer fail its test?
Common causes include worn seals and springs, debris in the check valves, corrosion, and aging internal components. Many assemblies can be repaired rather than replaced.
Why is water leaking from my backflow preventer?
Discharge from the relief valve can be caused by debris, worn internal parts, or pressure fluctuations. It should be inspected to make sure the assembly is still protecting your water supply.
Which properties need backflow prevention?
Commercial kitchens, medical and dental offices, buildings with boilers or chemical dispensing, and other properties with cross-connections to the drinking water supply commonly need backflow prevention. Learn more about our commercial plumbing services.
Schedule Backflow Service Today
Protect your water supply. Done right or it is free.