| Quick facts | Answer |
|---|---|
| Cost range | $50 to $250 per device; residential often $65 to $175 |
| Time | About 20 minutes per device |
| Who's qualified | Oklahoma CIB plumbing license plus ABPA or ASSE backflow tester certification |
Bixby, OK: what's different here
Bixby sits in Tulsa County, about 18 miles and roughly 29 minutes from Tulsa by main highway. The city spans about 51 square miles and has a population of about 29,000, making it one of the fastest-growing communities in the area. That growth means a mix of newer suburban housing and ongoing development, so irrigation and plumbing assemblies needing annual testing are common. Local permit costs can also matter when plumbing work requires city review, with a $350 residential building permit fee on Bixby's approved schedule.
When is annual backflow certification required in Bixby?
Oklahoma plumbing rules require backflow prevention assemblies to be tested at installation, after any repair or relocation, and at least once every year. That applies to regulated assemblies on homes and commercial properties alike. Missing the annual test can leave your device out of compliance with your water purveyor.
What does the backflow test include?
A standard backflow test commonly takes about 20 minutes per device. The tester follows Oklahoma plumbing code procedures based on ASSE 5013, 5015, 5020, 5047, 5048, 5052, 5056, or CSA B64.10 standards. Ask that the report be filed with your water provider as part of the quote.
Who can perform backflow testing in Bixby?
Oklahoma has no statewide backflow tester license, so local jurisdictions and water purveyors set approval rules. Many require an Oklahoma CIB plumbing license plus ABPA or ASSE backflow tester certification. Ask the pro for proof of licence, insurance, and certification before booking.
Does device type change the price?
Yes. Irrigation double-check assemblies usually sit at the low end of the $50 to $250 range, while RPZ assemblies and commercial fire lines cost more. National guides put the average at about $165 per device, with most jobs between $30 and $300.
How does Bixby's freeze season affect testing timing?
Tulsa-area climatology shows a mean first 28°F hard freeze on November 14 and a mean last one on March 17, with about 241 days between hard freezes. Schedule annual certification before the first freeze so irrigation assemblies can be winterized. Spring is the other popular window after the last frost around late March.
What to do next
- Count your backflow assemblies - irrigation double-checks test cheaper than RPZ or fire-line devices.
- Verify the tester holds an Oklahoma CIB plumbing license plus ABPA or ASSE backflow certification.
- Ask for a quote that includes the 20-minute test and report filing with your water provider.
- Book before the mean first hard freeze on November 14 if you have an irrigation assembly.
- 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.




