Most homeowners only learn about backflow testing because their water district sends them a letter — sometimes a polite reminder, sometimes a fine. Either way, here's the short version of what's actually going on.
What a Backflow Preventer Does
It's a one-way valve between your sprinkler system and your house's drinking water. Water flows out to the sprinklers, but contaminated water from the yard (fertilizer, pesticides, soil) physically can't be sucked back into your home's plumbing.
When does that contamination risk happen? When city water pressure drops suddenly — a fire hydrant opens nearby, a main breaks, that kind of thing. Without a working backflow preventer, those drops can pull yard water back into your pipes.
Why Texas Requires Annual Testing
Texas Commission on Environmental Quality (TCEQ) requires every system on a municipal water supply to be tested every year by a licensed backflow assembly tester. Not a regular plumber. Not a regular irrigator. A specifically certified one.
Failure to test means fines and, in some districts, eventual disconnection from the water supply.
What the Test Involves
About 15 minutes. We hook test gauges to the unit and check that the internal check valves hold pressure correctly. No digging. No noise. No interruption to your water service.
If it passes, we file the paperwork with your water district directly. You don't have to do anything.
If it fails, we tell you why and what the repair options are. Most failures are inexpensive ($80-$200 for an internals rebuild). A full unit replacement runs $250-$450 depending on the assembly type.
What It Costs to Test
In DFW and Houston Metro, expect $55-$85 for a standard backflow test. We charge a flat rate. Filing the report with the district is included.
How to Tell If You're Due
Most districts track this and send notices, but it's worth knowing your district's test deadline. We can look it up for any address in our service area — call us with your address and we'll tell you when you're due.
Most homeowners we test schedule it during spring system startup, since we're already on-site. Two birds, one visit.
That's the whole picture. It's not complicated, it's not expensive, and it's not optional. We make it easy.