Assembly repair usually means taking the device apart, cleaning out debris, replacing worn rubber parts and putting it back together. Then we run the full test again. If it passes, the report goes to your district.
- PriceFree quote
- Time1–2 hours
- RetestIncluded
- ApprovalPrice first
Ready to book? Same-week appointments.
Step by step
- Give you the price
- Clean or rebuild the failed part
- Review the failed readings
- Shut off water and open the assembly
- Retest and file the passing report
Reading the failed test
Every assembly repair starts with the test readings. They tell the tester which part of the device isn't doing its job, whether it's the first check, the second check, the relief valve or the air inlet.
That matters because it keeps the repair focused. Instead of replacing everything, we go straight to the part that failed and look for the cause: debris on a seat, a cracked disc, a weak spring, a torn diaphragm.
If someone else tested the device and it failed, send us their readings. They're on the report, and they help us show up with the right parts so the repair can usually be done in one visit.
What happens during the repair
Once you approve the price, we shut off water to the device. Sometimes that's the whole building, sometimes just the sprinklers or fire line.
The failed section gets opened up. We pull the parts, clean the seats, and replace any worn rubber, springs or diaphragms with matching manufacturer parts. We also look over the body and shutoff valves.
After reassembly, water goes back on. Downtime is usually 30 to 60 minutes. For businesses, we can often plan the work for a slower time of day.
Getting the passing report in
A repair isn't finished until the device passes again. Right after reassembly, we run the full test, the same procedure used on the annual test. If everything holds, the result is recorded as a pass after repair, along with the parts replaced.
We file that report with your water district so your device shows as compliant. You get a copy by email.
If the retest still shows a problem, we keep working until it passes or tell you why it won't. Sometimes a device that's had several repairs, or one with damage to the body, is better off replaced. We'll give you the numbers so you can decide.
How we decide whether to fix it
Most failed assemblies are worth repairing. A rebuild kit costs much less than a new device, and a rebuilt assembly can pass for years.
Replacement starts to make sense when the body is cracked, when the device is so old that parts are no longer made, when it's been repaired several years in a row, or when it's the wrong type for the hazard. Sometimes the district requires an upgrade, such as moving from a double check to an RP after a change of use.
We'll give you a straight answer on which makes more sense for your device, with prices for both when it's close. The choice is yours.
Preventing repeat failures
When the same device keeps failing from debris, look upstream. Main breaks, nearby construction and aging pipe can push grit into the line.
A strainer before the device sometimes helps, but districts don't always allow it and it needs regular cleaning. If we suspect an upstream cause, we'll explain it and lay out the options.
Working around your hours
Shutting off water at a restaurant at noon or a clinic during appointments isn't an option. For businesses, we schedule repairs around your hours, early mornings, late afternoons or slower days.
Let us know when water can be off and for how long. We'll plan the repair to fit, and the retest and filing happen before we leave.
Repair pricing explained
Repair cost depends on the device size, which section failed and what parts it needs. A rubber kit for a small residential device is very different from a full rebuild of a 4-inch fire line assembly.
You'll always see the price before we start, and it includes the parts, labor, the retest and filing the passing report. If replacing the device would cost about the same, we'll tell you that too.
If you're a property manager, we can send the quote straight to the owner or board and do the repair as soon as it's approved. The passing report goes to the district and a copy goes to everyone on your list.
Water shutoff
Usually 30 to 60 minutes for a standard repair. We'll tell you before we start.
Questions
Can you repair it the same day as the test?
Often, yes, if we have the parts on the truck. Otherwise we order them and come back.
Will the report show it failed first?
Yes. Districts expect the report to show the initial result and the passing retest after repair.
Do you quote before starting?
Always. You approve the price before we open the assembly.
What if parts aren't on the truck?
We order them and come back. Most parts arrive within a few days.
How long does an assembly repair take?
Most are done in one to two hours, including the retest.
Can you repair it if someone else tested it?
Yes. Send us the failed readings and we'll quote the repair.
Working with a local backflow company
When you call us about backflow assembly repair, you're talking to a company that focuses on backflow prevention. That focus means we know the devices, the test procedures and what your water district expects to see on the report.
Here's what you can count on: certified testers, calibrated gauges, a price before any work, and filing with your district included. Testing is $105 flat per device under 4 inches and $175 for 4 inches and up. We pick up seven days a week from 6am to 12pm, book most visits within the week and take emergency calls 24/7. Every customer gets a copy of the report for their records.
Where we offer Backflow Assembly Repair
Our testers handle backflow Assembly Repair across Redlands and the surrounding area, from Loma Linda, Mentone, Calimesa, Highland and Yucaipa. Call for the next opening or schedule online.