Licensed & Certified - CSLB #1024128
Backflow Testing & Repair
Certified backflow testing in Madera, Fresno, Merced, Los Banos, and across the Central Valley. David files your report with the water district.
Certified Backflow Testing
What Is Backflow Testing?
When water pressure drops - during a main break or heavy demand nearby - contaminated water can reverse course through your pipes and into the public supply. That's backflow. A prevention device stops it, but only if it's working. Testing verifies it is.
California requires annual testing for most commercial and multi-unit residential properties. It has to be done by a certified tester, and the report has to go to your water district. David Heumann holds that certification and handles the filing.
- Annual certification required by California law
- Protects public and private water supplies
- Required for most commercial properties
- David is a state-certified backflow tester
Backflow Services Offered
Backflow Testing
Annual testing for commercial and residential properties. David files the report with your water district directly.
Backflow Repair
Failed test? David repairs or rebuilds the assembly and gets you back into compliance.
Device Installation
New construction, renovation, or a device past its life - David installs the right assembly for the job.
Service Areas
Backflow Testing by Location
David provides certified backflow testing throughout Central California.
What Is Backflow Testing?
Why it's required, how it works, and what happens if your device fails.
Madera Backflow Testing
Annual certification for Madera properties - report filed with your water district.
Fresno Backflow Testing and Repair
Testing and same-day repair in Fresno. Failed tests handled fast.
Backflow Testing - Merced, CA
Serving Merced County businesses and property owners.
Los Banos Backflow Testing
Certified testing in Los Banos - David makes the drive.