Backflow Preventer Repair & Replacement
Failed your annual test? Device leaking, spraying, or cracked by a freeze? We repair and replace irrigation backflow preventers across DFW with upfront flat-rate pricing, so your device passes its retest and your drinking water stays protected.
Why the Backflow Preventer Matters
It is the least glamorous device on your irrigation system and the only one protecting your drinking water.
Protects Your Drinking Water
The backflow preventer is the one device standing between your irrigation system and your home's drinking water. When it fails, lawn chemicals and stagnant line water can siphon back into your supply.
Required by Texas Law
TCEQ Chapter 344 requires backflow prevention on every irrigation system in Texas, and your city or water district sets the testing schedule. A failed device is a compliance problem with a deadline.
The #1 Freeze Casualty in DFW
The backflow preventer sits above ground, full of water, all winter. One hard North Texas freeze cracks the body or the internals, and the damage shows up as spraying or seeping when the system wakes up in spring.
Stops Silent Water Loss
A leaking backflow preventer bleeds water around the clock, not just when the system runs. Repairing a weeping relief valve or cracked bonnet is one of the fastest paybacks in irrigation repair.
Backflow Services We Provide
Repair, rebuild, and replacement for every common residential device type in DFW.
Failed-Test Repair
Your annual test came back failed and the city gave you a deadline. We repair the specific failure the tester documented, from check assemblies to relief valves, so the device passes its retest.
Full Replacement
When the body is cracked or the device is too corroded to rebuild honestly, we replace the assembly like-for-like and set it at proper height and orientation so it tests cleanly for years.
Freeze Damage Repair
Cracked bonnets, split bodies, and blown poppets from winter freezes. We repair or replace the damaged assembly and show you how to protect it before the next hard freeze.
All Common Device Types
Double check assemblies, pressure vacuum breakers (PVB), and reduced pressure zone (RPZ) devices. We work on the device your system actually has and explain what it is and why.
Leak Diagnosis at the Device
Water at the backflow preventer is not always the preventer. Sometimes it is a fitting, a riser, or a valve upstream. We diagnose what is actually leaking before quoting the fix.
Shutoff & Isolation Repair
The shutoff handles on your backflow device are your emergency kill switch for the whole irrigation system. If they are seized or broken, we restore them so you can actually use them.
We Repair. Licensed Testers Certify.
Texas keeps these two jobs separate on purpose. The annual certification test on your backflow preventer must be performed by a licensed Backflow Prevention Assembly Tester registered with your water provider. That is not us, and anyone offering to test and repair in one visit without that license is cutting a corner.
Our side of the fence is the repair: when your device fails its test, leaks, seizes, or freezes, a TCEQ Licensed Irrigator repairs or replaces it so it passes the retest. Bring us the tester's report and we fix exactly what it flagged.
Not sure which device you have or what your city requires? Send us a photo of the assembly and your test notice and we will tell you what you are looking at before anyone drives out.
How a Backflow Repair Works
From failed test or visible leak to a device that passes its retest.
Diagnose
Inspect the device, identify the failure (or read the tester's report if you failed an annual test), and confirm whether the fix is a rebuild or a replacement.
Flat-Rate Quote
You get an upfront flat-rate price for the specific repair before any work starts. No hourly clock, no surprise line items.
Repair or Replace
Rebuild the assembly with new internals, or replace the device if the body is beyond honest repair. Proper height, orientation, and support.
Retest & Certify
Annual certification tests must be performed by a licensed backflow prevention assembly tester. After our repair, you schedule the retest and the device is ready to pass it.
Backflow Preventer FAQs
Failed tests, freeze damage, Texas requirements, and what repair actually involves.
My backflow test failed. What do I do now?
Your city or water district sent you a notice with a deadline, and the tester's report says what failed. That report is exactly what we work from: we repair or rebuild the failed component, and the device is ready for its retest. Most failed tests trace to worn check assemblies, a fouled relief valve, or freeze damage from the previous winter.
Do you perform the annual backflow test itself?
No, and it is worth understanding why. In Texas, backflow certification tests must be performed by a licensed Backflow Prevention Assembly Tester registered with your water provider, which is a separate license from an irrigator's. We handle the repair side: when a device fails its test, leaks, or freezes, we fix or replace it so it passes. Your tester certifies it.
Why is my backflow preventer leaking or spraying water?
The most common causes in DFW are freeze damage from winter (cracked body or bonnet), a relief valve doing its job because a check assembly is fouled, or simple age and corrosion. A device that sprays from the top vent on startup or weeps constantly is telling you an internal component is done. Diagnosis tells us whether a rebuild or a replacement is the honest fix.
Should I repair or replace a damaged backflow preventer?
If the body is sound, a rebuild with new internals restores the device for less money and it will pass its test. If the body is cracked, freeze-split, or heavily corroded, replacement is the honest answer, because a rebuilt device with a compromised body fails again. We open it up, show you what we found, and price both options honestly.
Is a backflow preventer actually required on my sprinkler system?
Yes. TCEQ Chapter 344 requires backflow prevention on every irrigation system connected to a potable water supply in Texas. Your city or water district decides which device type is acceptable and how often it must be tested. Most DFW cities require testing when the device is installed or repaired, and many require it annually.
How do I protect my backflow preventer from freezing?
Insulate it before hard freezes: an insulated cover or wrap on the above-ground assembly, and shut off and drain the irrigation supply ahead of a severe cold snap. The device sits outside holding water year-round, which is why it is the single most common freeze casualty we repair every spring in DFW.
What does backflow preventer repair cost in DFW?
Every repair is priced flat-rate and quoted upfront after diagnosis, whether it is a rebuild, a component replacement, or a full new assembly. You approve the price before work begins. There is no hourly billing, and if we find the leak is actually a fitting or valve rather than the preventer, we quote that repair instead of selling you a device you did not need.
Other Irrigation Services
Sprinkler Repair
Fast, reliable repairs for broken sprinkler heads, leaks, and system malfunctions.
Valve Repair & Replacement
Expert repair and replacement of irrigation valves to restore proper water flow.
Sprinkler Head Replacement
Replace damaged or inefficient sprinkler heads with modern, water-saving models.
Valve Locating
Professional equipment to find buried irrigation valves hidden under grass, mulch, or concrete.
Wiring & Electrical
Diagnose and repair irrigation wiring issues, faulty solenoids, and controller problems.
Sprinkler Inspection
Comprehensive system inspections to identify issues before they become costly problems.
Maintenance & Winterization
Seasonal maintenance, spring startups, and winterization to protect your investment.
Smart Controller Installation
Certified Rachio Pro installer. Save up to 40% on water with WiFi-enabled smart irrigation controllers.
Foundation Watering Systems
Drip-based foundation watering systems to protect DFW slabs from clay soil movement.
Irrigation Audit
EPA WaterSense certified irrigation audit — coverage, distribution uniformity, and water savings report.
Get Your Backflow Device Fixed Right
Failed test deadline, mystery leak, or freeze damage: Better Earth Solutions repairs and replaces backflow preventers across Garland and the DFW Metroplex with flat-rate pricing quoted before the work starts.