By now you have probably heard about the law regarding back flow inspection and certification. If not the law is that every sprinkler system in Illinois must have an RPZ back flow device and be inspected and certified every year.
This can only be done by a licensed plumber with a CCDI license, who then must submit paperwork to the city and state. The price in Northern IL. for this service ranges from $90.00 to $125.00.
Below you will find a list list of plumbers sorted by city that can do the backflow test for you.
PLUMBERS AVAILABLE FOR RPZ TESTING IN OR CLOSE TO YOUR CITY: