Missouri requires annual testing of every backflow prevention assembly. We test, file results with your water provider, and hand you a compliance certificate. That's it.
Free quotes — we call back within 2 hours
5 questions. 60 seconds. Find out your compliance status.
Take our 60-second compliance quiz to find out if your property is due for testing.
We'll call you within 2 hours with a no-obligation quote for your specific property.
We test, file your results with Missouri American Water, and remind you when your next test is due.
A certified tester comes to your property, runs the required differential pressure test on every RPZ, DCVA, and PVB assembly, then files results directly with your water provider. You get a compliance certificate. The whole visit takes 15-30 minutes per device.
Missouri regulation 10 CSR 60-11.010 requires annual testing of all backflow prevention assemblies. If your water provider hasn't received results within 60 days of your anniversary date, they notify MoDNR. After that, your water service gets disconnected.
St. Louis makes this more complicated than most cities. Missouri American Water covers the County. The City has its own Water Division. Each has different forms, deadlines, and submission procedures. We handle all of it.
Commercial properties with fire sprinklers, restaurants, medical offices, multi-family buildings, properties with irrigation systems, any building with a backflow prevention assembly installed.
O'Fallon, Wentzville, and other municipalities require irrigation backflow tests by June 1. Late fees of $30-$100 begin after that. By July 1, water gets disconnected. Don't wait until May.
Missouri American Water serves most of the County. The City has its own Water Division. St. Charles, Jefferson County, and others each have their own programs. Different forms, different portals.
Missouri requires ABPA or ASSE certification for testing. But St. Louis County additionally requires a County plumbing license. This double-credentialing catches many testers. Ours have both.
| Failure to test annually | Water service disconnection |
| City of St. Louis non-compliance | Up to $1,000/day |
| Late irrigation test (after June 1) | $30-$100 late fee |
| No report by July 1 (select municipalities) | Water disconnected + reconnection fees |
| Falsifying test results | Removed from MoDNR authorized list |
Pricing depends on the device type, how many you have, and where they're located on your property. Residential tests start at $75. Commercial properties with multiple devices get volume pricing.
If a device fails, we can usually repair it on-site the same day. Repairs run $150-$500 depending on what's wrong — most commonly it's worn seals or debris in the check valves.
Tested all 8 backflow devices at our office complex in Chesterfield. Results filed with Missouri American Water the same day. Will use again next year.
We were overdue and panicking about a compliance notice. They got us tested within 3 days and handled all the paperwork with the City Water Division.
Best price we found for our 12-unit apartment building. Professional, on time, and they set us up with a reminder for next year.
We're a St. Louis-based backflow testing company that does one thing: keep commercial and residential properties compliant with Missouri regulation 10 CSR 60-11.010. Every technician on our team is ABPA/ASSE certified and files test results directly with your water provider.
Have questions? Call us at (314) 555-0199 — we answer the phone.
We file results with every water provider in the area. Each has its own forms and submission procedures. We know them all.
Missouri regulation 10 CSR 60-11.010 requires annual testing. Schedule now and get your compliance certificate before the deadline.