Emergency Services Available 24/7 Open Monday - Sunday 7am - 7pm
Sara's Best Plumbing technician installing copper piping

Backflow Testing

Southern California
Experience Logo

24/7/365 Emergency Services

Insured Logo

Industry-Leading Warranties

Local Logo

Licensed, Bonded, and Insured

Certified Backflow Testing Services

Certified backflow testing, inspection, and repair for homes and businesses across Southern California. Every property connected to the public water system needs a backflow prevention assembly between the water it uses and the water everyone else drinks. Sara’s Best Plumbing tests, inspects, repairs, and replaces those assemblies for homes, businesses, restaurants, and irrigation systems across Los Alamitos and Southern California. We handle the entire process: the test, the report your water purveyor requires, and any needed repairs if the assembly fails.

Tick Annual Backflow Testing: The scheduled test your water purveyor requires, carried out with calibrated gauges.
Tick Backflow Certification Reporting: The completed report is filed with your water agency so the deadline is met..
Tick Backflow Device Inspection: Condition assessment of the assembly, its shutoffs, and the plumbing around it.
Tick Backflow Repair and Rebuild: Failed checks, relief valves, springs, and seals are replaced when a test does not pass.
Tick Backflow Prevention Installation: New assemblies sized for the property and its connection.
Tick Cross-Connection Review: Finding the places where drinking water and non-potable water could meet.

Due for your annual test or holding a notice from your water agency? Book online, and we will test, report, and handle any needed repairs.

Book Online.

What Your Backflow Assembly Is Actually Protecting

Backflow preventer assembly tested by Sara's Best Plumbing

A backflow prevention assembly keeps water flowing in the correct direction and protects the public water supply from reverse flow caused by pressure changes. Testing confirms it is still working properly. The State Water Resources Control Board requires backflow testers and cross-connection control specialists to be certified by recognized, accredited organizations.

Correct Icon

Irrigation System Testing. Homeowners with sprinkler or irrigation systems to help meet local water-system requirements and testing deadlines.

Correct Icon

Commercial Backflow Testing. Restaurants, kitchens, and other businesses where a failed assembly can disrupt operations.

Correct Icon

HOA and Property Management Service. Property managers and HOAs with multiple assemblies require recurring service across their properties.

Correct Icon

Older Property Assessments. We test and inspect the assembly and explain what you have.

Correct Icon

Backflow Repair and Replacement. We determine whether repair is practical or replacement is the better option.

Scheduled Backflow Service. Regular testing helps property owners stay ahead of deadlines and identify problems.

Signs Your Backflow Assembly Needs Attention

A few warning signs indicate a backflow assembly may no longer protect the water supply as intended. If you notice any, a test or professional service can determine whether adjustment, repair, or replacement is needed.

  • Water discharging continuously from the relief valve.
  • A test notice or non-compliance letter from your water purveyor.
  • Discolored water, sediment, or an unusual taste at the tap.
  • Corrosion, mineral crust, or physical damage to the assembly body.
  • A drop in water pressure downstream of the device.
  • No test record, or no test in over a year.

Older Los Alamitos properties may have backflow assemblies in service for decades that no longer match current needs. If you are unsure when yours was last tested, scheduling an inspection is a good place to start.

Why Choose Sara’s Best Plumbing for Backflow Testing

Backflow work sits at the intersection of plumbing and compliance, so the company must be sound in both areas. You can check everything below before you book.

Tick CSLB C-36 Licensed Contractor. License 1082340, bonded and insured, verifiable through the state board.
Tick 14+ Years of Orange County Plumbing Experience. The figure the company publishes across its site.
Tick Family Owned and Locally Based. Our shop is on West Cerritos Avenue, not an hour up the freeway.
Tick Best Plumber in Cypress Award. Recognition from the communities we serve.
Tick Pack Protection Membership. Ongoing service designed to help property owners stay ahead of required testing, deadlines, repairs, and compliance issues.
Tick 100% Satisfaction Guarantee. If the work is not right, we fix it.
Tick Price Matching Guarantee. Bring a like-for-like written quote, and we’ll match it.
Tick Financing Available. For replacements and larger repairs that arrive unplanned.

You get a written estimate before work starts, and parts are on the truck, so a failed test usually passes on the same visit.

Industry-Leading Warranties on Backflow Work

Every repair, rebuild, and replacement we carry out is backed by our workmanship warranty, with manufacturer coverage on the parts we install. A backflow assembly is a device you are required to keep working, so the warranty on the repair matters as much as the repair itself.

Book Online.

Specials Logo

Senior Citizen 10% Discount

We proudly support our community with a 10% senior discount. This is our thank-you for your trust and loyalty. Mention this offer when booking!

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.

(949) 510-8185

FAQs About Backflow Testing in Los Alamitos, CA

How often does my backflow assembly need to be tested in Los Alamitos?

Backflow testing is generally required annually for assemblies protecting the public water supply. The exact frequency and due date depend on the water purveyor, assembly type, and hazard level. In Los Alamitos, irrigation systems, fire protection, commercial properties, and other connections that could introduce contaminated water may be subject to testing and reporting. If you received a test notice, we can identify the assembly, perform the test, and help ensure the report is submitted before the deadline.

Which Los Alamitos properties need a backflow prevention assembly?

Backflow protection may be required when a property has a connection that could create a cross-connection with the drinking water system. Local examples include landscape irrigation, fire sprinkler systems, swimming pools, commercial kitchens, medical or dental facilities, restaurants, multi-unit properties, and premises with wells or other auxiliary water sources. The required protection depends on the actual cross-connection and hazard level, so we evaluate the installation rather than assuming every property needs the same device.

What happens if my backflow assembly fails its test?

A failed test means the assembly is not providing the required backflow protection and usually needs repair or replacement followed by a successful retest. Common causes include worn check valves, damaged relief components, debris, corrosion, and mineral buildup. We diagnose the failure, replace or rebuild serviceable parts when appropriate, retest the assembly, and handle the documentation so you have a clear record of what was corrected.

Will my home or business lose water during backflow testing?

Usually, the water supply to the protected part of the property must be isolated during backflow assembly testing. The interruption is normally brief, but the exact duration depends on the assembly and plumbing. This is important for Los Alamitos restaurants, medical facilities, businesses, and multi-unit properties where an unexpected shutdown can disrupt operations. We explain the expected interruption before testing and can help coordinate scheduling to fit your operating hours.

Do you submit backflow test reports to the water agency?

Yes. Backflow compliance involves more than testing the device; test results must be documented and submitted in accordance with the water purveyor’s requirements. We handle the paperwork and reporting as part of the service, helping property owners avoid situations where an assembly was tested but compliance was not properly closed out. If a test was already performed but you received another notice, we can review what remains outstanding.

Can you repair and test backflow assemblies at commercial and multi-unit properties in Los Alamitos?

Yes. We work with residential, commercial, and multi-unit properties that may have one or several backflow assemblies. Larger Los Alamitos properties may have separate assemblies for irrigation, fire protection, or other connections. We identify the devices, test them individually, document results, and coordinate repairs or retesting as needed. We also serve surrounding Orange County communities for recurring backflow testing and compliance service.

Why Choose Sara’s Best Plumbing

We had a serious issue with gas leaks and Sara’s Best Plumbing responded incredibly quickly. Their team, led by project manager Jessica, was at our house within two hours, which immediately helped ease a very stressful situation.

Four Star Rating

Sara’s Best Plumbing installed a new water heater for us more than a year ago. The pipe on the top of it started leaking, so I called at 9am yesterday. They came out the same day and fixed the issue under warranty. No charge.

Five Star Rating

Absolutely amazing. Extremely reliable and performs excellent work. We have had several complicated and difficult issues arise with our older home, and Sarah and her team have always been able to work with us and fix it.

Five Star Rating

Pedro was on time, efficient, and very professional. He explained the different components of my water heater, which helps for any future issues or changes I may want to make. Will definitely use Sara’s Best Plumbing in the future.

Four Star Rating

Sarah and Jessica were excellent with communication, and Chester the plumber was a pleasure to work with. Pricing was very fair.

Five Star Rating

We had a water leak in our shower. I reached out to Sara’s Best via Yelp and immediately received a response. Jessica, Chester, and Fernando provided friendly, professional, and respectful service from start to finish.

Five Star Rating

Ready to Get Started?

Sara's Best Plumbing is ready when you are. Whether it is a same-day repair or a planned project, our licensed plumbers arrive with the parts on the truck, give you a written quote before the work starts, and stand behind every fitting. Call now to book service or request a no-pressure estimate.

CTA Image
CSLB Badge
Award Badge
Certificate Badge
License Badge
Fave Badge
Home Advisor Badge