NEW HAVEN PLUMBING SERVICE
Backflow testing and repair in New Haven, CT
Annual backflow preventer testing, repair and installation for homes, rentals and businesses.
Updated September 2026 · New Haven, CT
A backflow preventer keeps dirty water from getting sucked back into the drinking water supply. Irrigation systems, boilers, fire sprinklers and a lot of commercial equipment need one.
If your water utility sent a notice that your device is due, call and we'll test it, fix it if it fails, and handle the paperwork.
Call 203-654-9405 any hour, or request a callback below.
Signs you need backflow testing
- A test-due notice from your water utility
- Water leaking from the preventer body or relief valve
- A new irrigation system or boiler going in
- Discolored water after a pressure drop
- A failed test result from last year
What to do right now
- Find the notice from your water utility and note the due date.
- Locate the device, usually near the meter or where the irrigation line starts.
- If it's dumping water from the relief port, note it for the tester.
- Make sure we can reach the device when we arrive.
- Call us to schedule the test before the deadline.
What it costs
Testing is usually a flat per-device price. Repairs or a replacement device cost more depending on size. We quote before any repair work.
More detail: Why is my water pressure suddenly low?
Questions we hear a lot
How often does a backflow preventer need testing?
Usually once a year, and your water utility will tell you when yours is due.
What happens if it fails?
We repair or replace the device, retest it, and send in the passing result.
Where we work
- Backflow testing in East Rock
- Backflow testing in Fair Haven
- Backflow testing in Westville
- Backflow testing in Hamden
- Backflow testing in West Haven
- Backflow testing in East Haven
- Backflow testing in North Haven
- Backflow testing in Branford
- Backflow testing in Orange
- Backflow testing in Woodbridge
- Backflow testing in Milford
- Backflow testing in Wallingford
- Backflow testing in Wooster Square
- Backflow testing in the Annex
- Backflow testing in Beaver Hills
- Backflow testing in Dixwell
- Backflow testing in Morris Cove
Other plumbing services
Dealing with this right now?
Call and a licensed New Haven plumber from our team can be there today.
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