| Quick facts | Answer |
|---|---|
| Cost range | About $60 to $150 for an average residential system |
| Time | About 20 to 40 minutes on site |
| Who's qualified | Licensed under Oklahoma's Construction Industries Board Plumbing License Law |
Jenks, OK: what's different here
Jenks sits in Tulsa County, about 11 miles and roughly 18 minutes by car from Tulsa via the main highway. The city's climate matches Tulsa's, with a mean first 28°F hard freeze around November 14 and a mean last one around March 17. That fall window is when above-ground backflow preventers need draining before a hard freeze hits.
When should Jenks homeowners schedule winterization?
Schedule before nighttime lows drop under about 28°F, since freezing water can damage exposed plumbing. Tulsa-area climatology shows a mean first 28°F hard freeze on November 14 and a mean first 32°F frost on November 3. Book ahead of early November to be safe.
What happens if my backflow preventer freezes?
Above-ground backflow preventers can crack if water is left inside over winter. Repair or replacement after a freeze can cost several hundred dollars, far more than the $60 to $150 seasonal winterization visit.
Who is qualified to do the work?
Backflow work in Oklahoma is regulated by the state's Construction Industries Board under the Plumbing License Law of 1955. Tulsa Backflow refers independent, licensed and insured local testers. Ask the pro for proof of licence and insurance before the visit.
Does my backflow preventer still need annual testing?
Yes. The City of Tulsa says a lawn irrigation system backflow preventer should be tested annually by a qualified professional. Winterization protects the assembly, but it does not replace the yearly test.
What to do next
- {'text': 'Schedule winterization before the mean first 28°F hard freeze, around November 14 in the Tulsa area.'}.
- {'text': 'Ask the pro for proof of an Oklahoma plumbing licence under the Construction Industries Board and current insurance.'}.
- {'text': 'Request a quote covering the full irrigation blowout plus backflow drain-down, not just a drain-only job.'}.
- {'text': "Book your annual backflow test at the same visit to meet the City of Tulsa's yearly testing guidance."}.
- 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.




