Illinois licenses backflow testers through the Department of Public Health as Cross-Connection Control Device Inspectors, so in Illinois the person signing your report needs that credential.

Chicago-area winters drive most devices indoors, but irrigation PVBs in the suburbs still have to be drained each fall. Older commercial buildings often have unmapped cross-connections on boiler and process lines. Grizzly Backflow & Plumbing connects Illinois property owners with licensed inspectors for annual backflow testing, commercial backflow testing and cross-connection surveys. Call (833) 990-5874.

Certified backflow testers working in and around Illinois
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

Illinois Owners Call Us for Backflow Testing

Illinois only accepts tests from licensed Cross-Connection Control Device Inspectors. Grizzly Backflow & Plumbing connects Illinois callers with testers who hold that state license and put it on every report.

Chicago-area buildings often have several devices on boiler, fire and domestic lines. Suburban homes have PVBs on sprinklers that need fall draining. Each test gets filed with the water department after it is done. Call (833) 990-5874 for backflow testing and backflow prevention in Illinois.

Call (833) 990-5874

Certified testers

Testers whose certification your water utility accepts for Illinois.

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 Illinois.

Talk to a person

How often does a backflow preventer need testing in Illinois?

Most water utilities require a test once a year. Many also require one at installation, after any repair and after the device is moved. Your utility's notice letter gives the exact due date.

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 is the difference between an RPZ and a double check valve?

Both have two independent check valves. An RPZ adds a relief valve between the checks that discharges water to atmosphere if the checks leak, which is why it is required on high-hazard connections.

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.

Can a backflow preventer be repaired instead of replaced?

Often it can. Rebuild kits with new discs, springs and seals are sold for most brands. Replacement makes more sense when the body is cracked or parts are no longer made.

Book a backflow test

Backflow Test Due in Illinois? Call now.

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

(833) 990-5874

Phone · (833) 990-5874