Annual certified testing
We test residential and commercial assemblies with calibrated equipment, verify every check and relief valve, and submit the passing report to your water provider — you're done until next year.
Backflow testing & prevention
Certified backflow testing that keeps you compliant
Your backflow assembly is the one-way gate between your property and the public water supply. We test, repair, and install backflow preventers for Austin and Marble Falls homes and businesses — and file the paperwork with your water utility so you stay on the right side of the annual requirement.
Why it matters
One failed valve can contaminate a neighborhood
Backflow happens when pressure reverses — a main break, heavy fire-hydrant use, or a pump failure can literally suck water from irrigation lines, pools, or commercial equipment back into the drinking water system. That's why assemblies exist, why they have to be tested every year, and why the test has to be done by someone certified.
Repairs & rebuilds
Failed a test? Worn checks, tired springs, and cracked bonnets are fixable with factory rebuild kits. We repair the assembly and retest in the same visit whenever parts allow.
New installs & relocations
Adding irrigation, replacing a damaged assembly, or bringing an unprotected property into compliance — we size the right device (RPZ, double check, or PVB) and install it to code.
How it works
Your test, handled end to end
1. We test on your schedule
Book online or by phone. Most residential tests take 30–45 minutes, and you don't need to be home if the assembly is accessible.
2. We file the paperwork
Passing results go to your water utility with your account details. You get a copy for your records — compliance, documented.
3. We remind you next year
Annual testing is easy to forget until the violation letter arrives. Ask us to track your due date and we'll nudge you before it's urgent.
Done by master plumbers
Texas Master Plumber License #M-41147. Backflow work touches the public water supply — it's exactly the kind of job that should be done by people who hold the top license in Texas.
Preparing for irrigation season? See our summer plumbing prep checklist, and explore all of our plumbing services.
Stay compliant
Test due? Don't wait for the violation letter.
Annual backflow testing for homes and businesses across Austin & Marble Falls.
FAQ
Backflow questions, answered
What is backflow testing and why is it required?
A backflow prevention assembly stops contaminated water from flowing backward into the public water supply — for example, when a water main break or fire hydrant use causes a pressure drop. Because a failed assembly can endanger the whole neighborhood's drinking water, Austin and surrounding utilities require annual testing by a certified tester, and they can fine or disconnect properties that fall out of compliance.
How do I know if my property needs a backflow preventer?
If you have an irrigation or sprinkler system, a commercial property, a pool, or certain fire suppression setups, you almost certainly have at least one backflow assembly — most are installed where the irrigation line ties in. Check your water utility bill or annual reminder letters; they usually track your test due date. If you're unsure, we can look it up and inspect what you've got.
What happens during a backflow test?
Our certified tester shuts down the assembly, connects calibrated gauges, and runs it through a sequence of pressure checks to confirm each check valve and relief valve holds as designed. The test takes about 30–45 minutes for most residential assemblies, and we file the passing report with your water utility for you.
What if my backflow assembly fails the test?
It happens — seals wear out and springs weaken, especially in Central Texas heat. Most failures are repaired with a rebuild kit (new checks, springs, and seals) rather than a full replacement. We'll quote the repair upfront, fix it the same visit when possible, and retest so you stay compliant.
Do you handle commercial backflow testing?
Yes. Commercial properties often have multiple assemblies — domestic, fire, and irrigation — with different test requirements and deadlines. We test them all, coordinate with your property manager on scheduling, and keep the paperwork organized so nothing slips.
Ready when you are.
Austin: (512) 233-6590 · Marble Falls: (830) 460-3565