Backflow Devices
Install, test, and certify the backflow preventer that keeps San Diego's water supply clean \u2014 and keeps you compliant with the county.
About this service
A backflow preventer stops contaminated water from siphoning back into the public drinking supply if pressure suddenly drops. In San Diego County, homes with irrigation systems, pools, boilers, or fire-suppression lines are required to have one — and it has to be tested every year by a certified tester.
We install new backflow assemblies, replace failed ones, and handle the annual certification test the county mails you a notice for. The report goes straight to the water authority so you don't have to chase paperwork.
If your notice is already past due or the device is leaking, we can usually get out the same week and have you certified before the shut-off warning turns into a shut-off.
What we handle
- New backflow assembly install — RP, DC, PVB, and AVB types
- Annual certification testing with results filed to the water authority
- Rebuilds, spring replacement, and full device swap-outs
- Freeze-damage and vandalism repair with insulated enclosures
- County paperwork handled end to end — you just get the confirmation
Our process for backflow devices.
Call or Book Online
Tell us what's going on. We'll schedule a same-day slot when we can.
On-Site Diagnosis
A licensed tech inspects the issue and confirms scope before any work starts.
Upfront Flat-Rate Quote
You approve the price in writing. No surprises, no hourly meter.
Fix, Test & Guarantee
We complete the work, test it in front of you, and back it in writing.
Why homeowners pick Stars & Stripes for this.
Licensed C-36 Techs
Every job is done by a background-checked, licensed California plumber.
Upfront Flat-Rate Pricing
You see the total before we start. No hourly clocks, no surprises.
2-Year Workmanship Guarantee
If it fails on our workmanship, we come back and make it right.
Fully Insured & Bonded
Property protection and clean job sites are non-negotiable for our crew.
You might also need.
Questions about backflow devices.
If your home has an in-ground irrigation system, a pool, a boiler, or a fire sprinkler line — yes. If you got a mailer from the Sweetwater Authority or Otay Water District asking for a test, you definitely have one.
Every year in San Diego County. You get a mailer with a due date, and if the report isn't in on time the water agency can shut off service.
About 20–30 minutes on-site. We file the report the same day so your account is current within a business day.
Yes — most residential assemblies can be swapped in a single visit once we confirm the size and type on-site.
Need backflow devices? Book a same-day slot in South Bay.
Same-day appointments across South Bay. 24/7 emergency dispatch. Upfront pricing before we touch a wrench.