Certified Backflow Testing & Prevention
Protecting your drinking water starts with a reliable backflow device and a proper test. We provide backflow testing in San Francisco for homes, HOAs, commercial kitchens, healthcare offices, irrigation systems, and fire lines. Our licensed, certified testers inspect and test all common assemblies—RPZ, DCVA/DCDA, PVB, and SVB—verify shutoff operation and relief valve performance, and document results for your records and your water provider.
Whether you need an annual compliance test, a repair on a leaking check, or a full replacement of an aging assembly, we handle the entire process end-to-end: site assessment, device selection, isolation vs. containment guidance, installation to code, testing, tagging, and final paperwork. If you’re searching for backflow testing in San Francisco, CA with fast scheduling and clear pricing, you’re in the right place.
Prevention matters as much as testing. We design and install backflow prevention that fits your system—domestic water, irrigation, industrial process, or fire sprinkler supply—so cross-connection risks are eliminated and potable water stays safe. Need quick help before a due date? Ask about our priority service and same-week appointments for San Francisco backflow testing.

- 88 Garnett Terr, San Francisco, CA, 94124
- 777 South Mathilda Ave. Sunnyvale, CA, 94087
- 1611 Elm St, El Cerrito, CA, 94530
- 1112 Mission Ave, San Rafael, CA, 94901
- +1 (415) 867 7006
- +1 (650) 772 9701
- maxelectric.sf@gmail.com
- Our Yelp reviews
Why Homeowners & Businesses Choose Us
Not sure where to begin? We’ll walk you through it.
Here’s our simple process:
- share your address and device type (RPZ, DCVA, PVB, etc.);
- we confirm access and provide a firm quote;
- a certified tester performs the test, records pressures, and applies a tag;
- if the assembly fails, we explain options—clean, rebuild, or replace;
- you receive documentation for compliance. This works for single-family homes, multi-unit buildings, cafés, dental/medical suites, irrigation systems, and fire services.
If your due date is approaching or you’ve received a notice, tell us the deadline and we’ll prioritize scheduling. We can also bundle multiple devices on one visit to reduce downtime and cost.
Keep Your Water Safe
Backflow prevention protects health and avoids fines.
We provide thorough, on-time testing, honest diagnostics, and compliant installations so your potable water remains protected. If you need backflow testing in San Francisco or advice on selecting the right assembly, we’re ready to help with clear answers and dependable workmanship.
Questions or ready to schedule?
Call, message, or request a quote today—we’ll make compliance straightforward and stress-free.