Annual backflow preventer testing, certification, installation, and repair for commercial properties across Lake, Porter, and LaPorte County. Downing Plumbing keeps your business compliant with local water authority requirements.
BACKFLOW TESTING & PREVENTION
Commercial properties throughout Northwest Indiana are required to have backflow prevention devices tested annually by a certified tester. Backflow prevention protects the public water supply from contamination caused by back-siphonage or back-pressure — making it both a safety requirement and a regulatory obligation.
Downing Plumbing provides certified backflow preventer testing for businesses, industrial facilities, irrigation systems, and fire suppression systems across Lake, Porter, and LaPorte County. We handle all required documentation and submit test reports to the appropriate water authority on your behalf.
If your backflow preventer fails testing or needs replacement, we can repair or install new devices — including reduced pressure zone (RPZ) assemblies and double check valve assemblies — to bring your property back into compliance quickly. Don't wait for a notice of violation from your water utility.
WHAT WE DO
Downing Plumbing provides complete backflow testing and prevention services — from annual compliance testing to device repair and installation.
Most commercial water authorities in Northwest Indiana require annual backflow testing. Missing your testing window can result in violation notices, fines, or water service interruption. Schedule your test with Downing Plumbing today.
HOW IT WORKS
Fast, accurate, and fully documented — backflow testing by Downing Plumbing keeps your business compliant without disrupting your day.
Book your annual backflow test. We'll confirm the appointment and let you know what access is needed.
Our certified tester performs the required test on your backflow prevention assembly using calibrated equipment.
If the device fails, we repair or replace it on the spot whenever possible to restore compliance quickly.
We provide your compliance certificate and submit the test report to your local water authority.
CUSTOMER REVIEWS
See what customers are saying about Downing Plumbing's professional plumbing, drain cleaning, sewer, and water heater services throughout Northwest Indiana.
"Exceptional service in an emergency situation! Incredible organization to deal with!!"
"Same day service. Knowledgeable craftsmen did excellent work. No complaints."
"The installation of my new water heater was done with courtesy and efficiency."
READY TO GET STARTED?
Whether you need drain cleaning, sewer repair, water heater service, sump pump repairs, or emergency plumbing help, Downing Plumbing is ready to help.
