meet our team

Dave & Angie Diehl

Dave & Angie Diehl founded Twin Cities Backflow Testing to make your backflow testing experience as painless as possible.

Dave is ASSE certified and licensed by the State of Minnesota to test backflow prevention valves (sprinkler backflow valves) for residents and businesses. Angie will take care of your scheduling and answer any questions you may have along the way!

Contact us for affordable and fast Minnesota backflow prevention testing throughout the Twin Cities, including Apple Valley, Burnsville, Eagan, Elko New Market, Farmington, Lakeville, Minneapolis, Prior Lake, Rosemount, Savage, Shakopee and St. Paul.