| Quick facts | Answer |
|---|---|
| Cost range | Repair or rebuild kit: $150–$400 |
| Time | Most tests take about 0.5 to 2 hours per device |
| Who's qualified | ABPA or ASSE tester certification plus a CIB plumbing license |
What should I do today if my tester is not answering?
Stop waiting on the old contractor and call a new source now. Check your test deadline first, because the local water purveyor sets the due date for your property. Confirm the exact date with your utility before you book.
How do I check a new tester before I hire them?
Oklahoma has no statewide backflow tester license. Ask the pro for proof of licence and insurance, and ask which ABPA or ASSE certification the tester holds. Confirm that your utility recognizes that tester before you pay.
What does a backflow test usually cost in this area?
A single-device test commonly falls around $75 to $200, with average quotes near $120. A residential RPZ test typically costs $64 to $157 in Oklahoma. Rush or hard-to-access jobs can cost more.
Why does timing matter for my test?
Annual inspections of backflow assemblies are required under Oklahoma's adopted commercial plumbing code, effective September 14, 2026. Tulsa averages about 43.6 inches of precipitation a year, so regular cross-connection protection on outdoor lines stays important.
What to do next
- Find your property's testing due date by calling the water utility that serves your Bixby address.
- Ask the new tester for the ABPA or ASSE certification number and the CIB plumbing license that covers the work.
- Verify the tester is on your utility's approved-tester list before you book an appointment.
- Request a written quote that lists one device at a time, with the test type and any repair costs.
- Call (918) 202-2068 or email [email protected] for a free quote from a licensed, insured local backflow testers.
Tulsa Backflow is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.




