Backflow Preventer Repair in Brownsville, TX
A backflow preventer is a valve assembly, usually near where the sprinkler line leaves the house supply, that stops water in the irrigation pipes from flowing back into your drinking water. When it leaks, cracks or sticks, the system may not run, and the water supply is less protected. We repair and replace these devices.
Signs your backflow preventer needs attention
- Water drips or sprays from the brass device near the house or meter
- The body is cracked or a test cock is broken
- The system lost pressure after a hard freeze
- Water dumps from a relief vent when the system runs
- The device is buried, damaged by a mower or exposed to traffic
- You were told the device failed a test
What we do
Backflow devices protect your water supply, so we work carefully and test the result.
- 1
Look
We identify the type of device, check its condition and look for leaks at the body, valves and fittings.
- 2
Diagnose
We check whether the problem is a worn seal, a failed check valve, a cracked body or damaged pipe around it.
- 3
Explain the price
We explain whether a rebuild or a replacement makes more sense, and what each costs.
- 4
Repair and test
We repair or replace the device and nearby pipe, restore water and confirm it holds without leaking.
Testing and local requirements
Some backflow devices need periodic testing by a certified tester, and rules depend on the device type and the water provider. If you have received a notice, keep it handy when you call and we will go over it with you.
State law puts irrigation work in the hands of a TCEQ-licensed irrigator, or a tech working under one, and backflow testing is its own certification. We tell you plainly what we handle and what needs a separate tester.
A device that sits low to the ground or close to a driveway is easy to damage. During a repair, we look at whether a small change in location or a protective cover makes sense.
There are several types of backflow preventers, and the right one depends on how the system is connected and what the water provider requires. We identify yours and repair it with matching parts whenever possible.
Because the device sits right where the irrigation line branches off the house supply, a leak there wastes water continuously while the line is pressurized. It is worth fixing quickly.
Some homeowners have their device relocated during a repair so it is easier to reach, protect and insulate. Others add a simple lockable cover so it is less likely to be damaged by mowers, vehicles or curious hands. When it makes sense, we talk through those options with you and price them separately, so you can decide what is worth doing now and what can wait for another time.
Quick checks before you call
- Look at the device while the system is off. Any drip or spray means a part is not sealing.
- Find the shutoff valve upstream of the device so you can close it if it starts leaking heavily.
- After a freeze, check for a split in the brass body or water dripping from the test cocks before turning the system on.
Freeze damage in a warm climate
Hard freezes are rare in Brownsville, which is exactly why they cause so much damage. Few homeowners insulate exposed pipes and devices, so when a deep cold snap does arrive, the water inside a backflow preventer can freeze and crack its brass body. The February 2021 winter storm brought freezing weather and long power outages to the Valley, and many irrigation systems came out of it leaking.
When a freeze is forecast, shut off the irrigation supply, drain what you can and wrap the backflow device with an insulated cover or old towels and a bucket. If you see water spraying from the device after a freeze, close the shutoff valve and call us. Do not run the system until the device has been checked.
Request your free estimate
Tell us what your system is doing. We will call you back to talk it through and set up a time to look.
Backflow Preventer Repair: common questions
What does a backflow preventer do?
It keeps water from your sprinkler pipes, which can pick up fertilizer and soil, from flowing back into the drinking water line. It is a one-way gate for water.
Why is my backflow preventer leaking?
Worn rubber seals, debris in the check valves and freeze cracks are the usual causes. A leak from the relief vent can mean an internal part has failed.
Can a cracked backflow device be repaired?
If the body is cracked, it usually needs to be replaced. Worn internal parts can often be rebuilt.
How do I protect my backflow preventer from a freeze?
Turn off the irrigation supply, open the test cocks a little to drain it, and cover it with an insulated bag or towels and a bucket until the cold passes.
Do you test backflow devices?
Testing is done by a certified backflow tester. Tell us if you need a test, and we will explain the options when you call.
Related services
Leak & Broken Pipe Repair
Soggy spots, bubbling soil and a climbing water bill usually point to a cracked line or a worn valve. We find it and fix it.
Learn more →Storm & Flood Damage Repair
Hurricanes and tropical storms flood valve boxes, knock out controllers and bury heads in debris. We check and repair the system.
Learn more →Sprinkler Tune-Ups
A seasonal checkup catches small problems early and resets the timer, so you get a greener lawn with less water.
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