Rebuild or Replace a Failed Backflow Assembly
A backflow preventer keeps non-potable water — from irrigation, fire lines, boilers, or process equipment — from siphoning back into the drinking water supply. Over time the internal parts wear out, the device corrodes or freezes, and it stops protecting the way it should. Finish Line MEP repairs, rebuilds, and replaces backflow assemblies so your property stays protected and compliant.
What we do
- Backflow rebuilds: replace worn springs, seats, check valves, and relief valves with the correct repair kit
- Backflow replacement: install a new assembly when the device is beyond economical repair
- Failed-test repairs: fix assemblies that didn't pass so they're ready to re-test
- Freeze & corrosion damage: restore or replace assemblies damaged by weather or age
- Leak & discharge repairs: stop continuous relief-valve discharge and fitting leaks
A note on testing
Finish Line MEP specializes in the repair, rebuild, and replacement side of backflow work — not annual testing or certification. If a certified tester finds your assembly has failed, we're the team that gets it working again. Need only your yearly test? A certified backflow tester handles that step, and we'll coordinate the repair once a device fails.
Systems we service
Irrigation backflow assemblies, fire-protection lines, potable water systems, and process/equipment connections for commercial buildings, restaurants, industrial facilities, and multifamily properties throughout DFW.