It is mandatory to have your backflow tested every year!


Every year, by law, your backflow device needs to be tested. Why should it be a headache? 


B-N-K Plumbing is  your one stop plumbing expert. We are here 24 hours a day, seven days a week for all of your plumbing needs. Whether it’s maintenance, repair or an emergency, we are waiting for your call. 
Backflow Device Testing

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B-N-K Plumbing, Inc.
"We Treat Your House Like Our House"
24 Hour Emergency Service
B-N-K Plumbing, Inc.
"We Treat Your House Like Our House"
24 Hour Emergency Service
B-N-K Plumbing, Inc.
"We Treat Your House Like Our House"
24 Hour Emergency Service
B-N-K Plumbing, Inc.
"We Treat Your House Like Our House"
24 Hour Emergency Service

(877) 470-0047 Toll Free

 (815) 363-0026 McHenry County

(847) 223-0515 Lake County
PL# 058-171752
Call for your appointment today!

(815) 363-0026 McHenry
(815) 479-0499 Crystal Lake
(847) 223-0515 Grayslake
What is a backflow device and why do I need it tested?

Water pipes and plumbing fixtures can make up cross connections which can be the link to contaminate drinking water supplies. All buildings have the potential for these cross connections. Especially businesses with domestic water lines, fire protection systems, lawn irrigation systems, and buildings that mix chemicals, among others. Reversing the flow of contaminates into drinking water is called backflow.  A backflow device prevents this from happening, when in proper working order.  The Environmental Protection Agency (EPA) requires yearly testing of these devices. These backflow devices are to protect your water supplies from contamination or pollution. No device is “grandfathered”, they ALL need to be tested, by law, annually by a licensed plumber with a Cross Connection Certification License.
Make your backflow device testing easy with us!


B-N-K Plumbing is here to help keep your home or business up to date on your Backflow devices. We will come and test your device(s), send all of your paperwork into the city and remind you of your testing the following year. In the event that your device fails, we are also equipped to repair your device. There is little work for you.

Do you have more than one device? Are they not in the same building, but in the same area?  You qualify for our multiple device rate.  We at B-N-K Plumbing are making your backflow testing more economical by offering multiple device discounts.
Communities we serve:

Algonquin, IL 60102                            Barrington Hills, IL 60010                     Carpentersville, IL 60110
Cary, IL 60013                                    Crystal Lake, IL 60012, 60014              Deer Park, IL 60010
Diamond Lake, IL 60060                      Fox Lake, IL 60020                              Fox River Grove, IL 60021
Gages Lake, IL 60030                         Grayslake, IL 60030                            Gurnee, IL 60031
Hawthorn Woods, IL 60047                  Huntley, IL 60142                                Island Lake, IL 60042
Johnsburg, IL 60050, 60051                 Kildeer, IL 60010, 60047, 60074            Lake Barrington, IL 60010, 60084
Lake In The Hills, IL 60102, 60156        Lake Zurich, IL 60047                           Lakemoor, IL 60050, 60051
Lakewood, IL  60014                           Libertyville, IL 60048                             Lindenhurst, IL 60046
Long Grove, IL 60047, 60060                McCullom Lake, IL 60050                     McHenry, IL 60050, 60051
Mundelein, IL 60060                            Prairie Grove, IL 60012                         Richmond, IL 60071
Ringwood, IL 60072                             Round Lake Beach, IL 60073                Round Lake Park, IL 60073
South Barrington, IL 60010                   Spring Grove, IL 60081                         Vernon Hills, IL 60061
Wadsworth. IL 60002, 60083                Wauconda, IL 60084                            Wonder Lake, IL 60097
                                                         Woodstock, IL 60098