Sewer Backflow Prevention in Tulsa, OK

Quick facts	Answer
Cost range	About $94 to $682; some projects run $135 to $1,200
Time	Varies by home - confirm in your quote
Who's qualified	Current state plumbing license required under 59 O.S. Section 1001 et seq.

When does Tulsa recommend sewer backflow prevention?

Tulsa city guidance says sewer backflow prevention valves are highly recommended in low-lying, flood-prone areas where sanitary sewer backups can damage homes. Repetitive-loss materials call backup valves essential where a property faces repeated backup risk. Backflow preventers are also listed as a retrofitting technique to protect floors and contents.

What permit does sewer backflow prevention need in Tulsa?

Installing a backflow preventer for plumbing work in Tulsa typically requires a permit, and work generally must be permitted before it starts. The permit fee schedule lists a backflow prevention assembly permit at $79.00 with an $80.00 general minimum. Starting work before the permit is issued can trigger a $214.00 penalty or three times the regular fee, whichever is greater.

Can I install a backflow preventer myself in Tulsa?

Oklahoma law treats backflow preventers as part of regulated pipe and piping system work under 59-1017, defining one as a permanent mechanical device that prevents reverse flow of potable water. Tulsa also requires a current state plumbing license before the City issues a Certificate of Registration for permit work. Ask the pro for proof of license and insurance.

How often should a backflow preventer be tested in Tulsa?

Tulsa says a lawn irrigation system backflow preventer should be tested annually by a qualified professional. The City's water-meter specifications also require testing by a City of Tulsa-approved Back Flow Assembly Tester before acceptance. Plan around winter: Tulsa's mean first 28°F hard freeze is November 14 and the mean last is March 17.

What to do next

Ask each pro for a quote covering the device, labor, and the $79.00 backflow prevention assembly permit plus the $80.00 minimum permit fee.
Verify the pro holds a current state plumbing license under 59 O.S. Section 1001 et seq., which Tulsa requires before issuing a Certificate of Registration.
Wait for the City permit to be issued before work starts - early work can cost a $214.00 penalty or three times the regular fee.
Schedule the annual test with a qualified professional, and ask whether they are a City of Tulsa-approved Back Flow Assembly Tester.
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.

Quick answers

What does a backflow preventer do?

Oklahoma statute defines it as a permanent mechanical device or combination of devices that prevents reverse flow of potable water in a piping system. Tulsa guidance says these devices protect homes from sewer backups during heavy rain or sewer main overflows.

How much does installation cost in Tulsa?

Tulsa-area cost guides put typical installation at about $94 to $682. Another reported range is $135 to $1,200, with a common project cost around $300.

Is a permit required in Tulsa?

Yes - installing a backflow preventer for plumbing work typically requires a permit, and work generally must be permitted before it starts. The backflow prevention assembly permit item is listed at $79.00 with an $80.00 general minimum.

Who can test my backflow assembly?

Tulsa requires assemblies to be tested by a City of Tulsa-approved Back Flow Assembly Tester before acceptance. For irrigation systems, the City says testing should happen annually by a qualified professional.