Updated October 23, 2026. Answers reflect Mr. Backflow’s approved service scope and pricing. Your water provider’s current notice and the accepted service agreement control the requirements for a specific property.
How much does backflow testing cost in San Diego?
Mr. Backflow’s published rate is $90 for an eligible domestic or irrigation backflow device 2 inches and under. Certification and district filing are included. Eligible devices larger than 2 inches through 3 inches require team review.
Does Mr. Backflow test commercial backflow devices?
Yes. The published $90 standard rate applies to qualifying commercial domestic or irrigation devices 2 inches and under. Businesses, HOAs and properties with multiple devices can request a combined quote after the team reviews the assemblies and locations.
How often does a backflow preventer need to be tested?
Backflow assemblies tracked by a water provider are commonly tested once each year, but the provider sets the requirement and due date for a specific property. Use the current notice or district account record rather than estimating from the previous appointment.
Does Mr. Backflow file the test result with the water district?
Yes. Eligible testing includes certification and district filing when applicable. Submission timing, district processing, record matching and acceptance remain controlled by the water provider and can vary.
What happens if a backflow preventer fails its test?
The technician records the failed result and can explain whether professional inspection, an eligible repair or replacement should be considered. Chargeable work beyond the authorized test is reviewed with the customer before it proceeds, and approved corrective work is retested when applicable.
What backflow services does Mr. Backflow provide?
Mr. Backflow provides certified testing, repairs, replacements, and installations for backflow preventers up to 3 inches. Fire systems and larger assemblies are not included in our service scope.
Does the City of San Diego require annual backflow testing?
The City of San Diego states that backflow assemblies in its program require annual testing. Some San Diego addresses are served by another water agency, so the provider named on the current notice or water bill controls the property record, deadline and filing process.
What should I do with a backflow test notice?
Keep the notice and use it to identify the water provider, service address, assembly record and due date. Have it available when requesting service. Mr. Backflow cannot extend a district deadline or guarantee a compliance result.
Do I need to be home during a backflow test?
You may not need to be home when the technician can safely access the correct assembly and operate the required valves. Share gate, tenant, pet, equipment and water-interruption concerns before the appointment so the team can review the access plan.
What information should I provide when requesting service?
Provide the property address, water provider, requested service, device size and system type if known, device count, fire-system status, current notice and any access restrictions. The team reviews the request and availability before confirming an appointment.
Official Sources and Further Reading
Requirements can change. Confirm the current rule with the water provider responsible for the property.
Have a Property-Specific Question?
Have the address, water provider, device size and current notice ready. We’ll confirm your appointment after we review your request and availability.
Request service