Many New Hampshire homes use private wells, so backflow testing in New Hampshire centers on properties connected to public systems regulated by NHDES.

Deep frost keeps devices indoors. Ski areas, schools and seasonal businesses often have several assemblies on site, and each needs testing on schedule. Grizzly Backflow & Plumbing connects New Hampshire property owners with testers for commercial backflow testing, double check valve testing and backflow enclosure and freeze protection. Call (833) 990-5874.

Certified backflow testers working in and around New Hampshire
RPZ, double check, PVB and fire line assemblies
Test reports filed with your water utility
A person on the phone at (833) 990-5874

(833) 990-5874

Why call us for backflow testing

New Hampshire Owners Call Us for Backflow Testing

New Hampshire schools, ski areas and seasonal businesses often have several devices and tight schedules. Grizzly Backflow & Plumbing connects New Hampshire owners with testers who line up every test before the due date.

Indoor devices get tested year-round. Reports go to the water system. Call (833) 990-5874 for commercial backflow testing, double check valve testing and backflow prevention in New Hampshire.

Call (833) 990-5874

Certified testers

Testers whose certification your water utility accepts for New Hampshire.

Report filing

Reports go in through the utility portal or on its own form.

Price first

You hear the price on the phone before the test is booked.

Readings, not guesses

Each check and relief valve gets an actual psid reading.

Repair on site

Rebuild kits for common brands, so many failed devices are fixed and retested in one visit.

Multi-device sites

Domestic, fire line and irrigation assemblies tested and tracked together.

Backflow testing FAQs

Questions about backflow testing

Common questions about backflow testing in New Hampshire.

Talk to a person

Who is allowed to test my backflow device?

A tester who holds a backflow tester certification recognized by your state or your water utility. Many utilities keep an approved tester list and reject reports signed by anyone not on it.

What happens if I miss the backflow test deadline?

Utilities usually send a second notice, and after that some add a fee or schedule a service shutoff. Calling (833) 990-5874 before the deadline is the simplest way to avoid it.

How long does a backflow test take?

A residential PVB or double check test usually takes 20 to 30 minutes. Large commercial and fire line assemblies take longer.

What is a cross-connection?

Any point where drinking water piping can come into contact with a non-potable source. Common examples are a hose in a bucket, a boiler fill line and an irrigation system.

Who sends the test report to the water utility?

The tester usually files it, either on the utility's paper form or through its online portal. Ask for a copy for your own records.

Book a backflow test

Backflow Test Due in New Hampshire? Call now.

Certified testers for backflow testing in New Hampshire. Call (833) 990-5874 and we go through the device and the price before anything is booked.

(833) 990-5874

Phone · (833) 990-5874