Backflow Prevention & Testing in Fairfield County, CT

Connecticut requires annual testing on any backflow preventer connected to the public water supply. We test, certify, install, and repair backflow assemblies for homes and businesses across Fairfield County and Westchester County, NY.
backflow preventer installation

10+

Years in Fairfield County

100%

Upfront, No-Surprise Pricing

1–2 hrs

Typical Emergency Response

$0

Cost for an Estimate
Do You Need a Backflow Test?

Who Needs Backflow Testing in Connecticut

If your property has any of the following, state regulations likely require an annual test.

Irrigation Systems

Lawn chemicals and fertilizer can siphon back into drinking water without a working preventer.

Fire Suppression Systems

Standing water in sprinkler lines is a common cross-connection risk that requires annual testing.

Commercial & Boiler Connections

Restaurants, boilers, and other commercial equipment often connect to the water supply in ways that require a backflow assembly.

New Installations & Annual Renewals

New devices need testing right after install, then every 12 months after that.
What We Handle

Backflow Prevention Services

From a first-time install to your annual compliance test, we handle the full process.

New Backflow Preventer Installation

Sizing and installing the right assembly for your property and water use.

Annual Backflow Testing & Certification

Testing by a technician trained on the process required for compliance in Connecticut.

Backflow Repair

Fixing a device that failed its test, so it passes on the retest.

Compliance Documentation

Filing test results with your water authority so you’re not chasing paperwork.
How It Works

What Happens When You Call

A straightforward path from your call to a passed test on file.
1

Call or Schedule Online

Tell us what type of device you have and when it was last tested.
2

We Test the Device

Testing follows the process required for compliance in Connecticut.
3

Pass or Repair

If it passes, we file the paperwork. If it doesn’t, we quote the repair before doing anything.
4

Compliance Filed

We submit your results to the appropriate water authority so the record is up to date.

Backflow test due or already overdue?

Tell us what kind of device you have. The estimate is free either way.
backflow prevention device
Why Call All State

What Property Owners Notice Most

Commercial customers in particular tend to mention the same thing: they don’t want to think about backflow compliance until they have to. We handle the testing, the paperwork, and the reminder for next year, so it stays off your plate until it’s due again.
Related Services

Other Ways We Can Help

Commercial Plumbing

Residential Plumbing

Drain Cleaning

Emergency Plumber

No Hot Water in House Top Solutions to Get You Back on Track
Frequently Asked Questions

Backflow Testing FAQs

Is backflow testing required by law in Connecticut?

Yes. Connecticut Public Health Code requires annual testing of backflow prevention devices connected to the public water supply, covering both residential situations like irrigation systems and commercial properties with a cross-connection risk.

At least once a year. A new device also needs to be tested right after installation, before it’s considered compliant.

The property owner. If a device fails its test, it’s on the owner to have it repaired and retested, and to notify the water authority once it’s corrected.

We’ll quote the repair before doing any work. Once it’s fixed, we retest the device and file the passing results with your water authority.
Yes. We test irrigation system backflow preventers at homes as often as we test commercial assemblies tied to fire suppression, boilers, and restaurant equipment.
Get In Touch

Ready When You Are

Call now to schedule your test, or send a message and we’ll get back to you.

Send a Message

Backflow test coming due? Talk to a real person now.
Free estimates · Priority emergency response

Stay Compliant Without the Hassle

Whether it’s your first install or an annual retest, All State Plumbing Pros handles backflow testing and the paperwork that comes with it.