Backflow Repair & Replacement in Cary, NC

A backflow assembly that fails its test is not the end of the line. In most Cary homes the problem is a worn rubber check, a tired spring, a leaking relief valve, or a scored seat — all parts we can rebuild without tearing out the whole assembly. We carry repair kits for the common makes you find across Preston, Lochmere, and Amberly, so a single visit often gets the device back to passing.

When repair is the right call — and when it isn’t

We start by repeating the test to confirm exactly which element failed. If the body is sound and the failure is a serviceable part, a rebuild is faster and cheaper than replacement. But when the assembly is corroded, cracked, undersized for the line, or simply old enough that parts are no longer made, we recommend a full replacement. Many of the systems in Cary’s 1980s and 1990s communities have reached that point, and forcing another repair onto a failing body just buys a few months.

Replacement is also the moment to fix what the original installer got wrong. Larger golf-community homes in MacGregor Downs and Preston often need proper zoning and an assembly sized to the actual demand, not whatever was cheapest at build-out. We set the new device at the correct height and orientation, leave clearance for the next test, and make sure it can be drained ahead of a hard Triangle freeze.

Cary is unusual in the Triangle: the Town runs its own utility, treats its water at the Cary/Apex Water Treatment Facility from Jordan Lake, and administers its own cross-connection control program for Cary customers and for Morrisville. That means your repaired or replaced assembly has to satisfy the Town’s program, not the county’s.

For residential irrigation, North Carolina SB 166 moved testing to a three-year cycle, while booster-pump and chemical-feed systems still test every year. In Cary the customer is responsible for submitting the test report — signed by a Town-certified technician — within 30 days, and the testing itself must be done by a Cary-certified tester. There is also an annual online opt-out form if you intend to use your own tester or skip a year.

After we rebuild or replace your assembly, we retest it and provide that signed, passing report so you can meet the deadline cleanly. If you have questions about the opt-out form or which cycle your system falls under, we confirm it for your specific property before we close the job.