| Quick facts | Answer |
|---|---|
| Cost range | $150 to $450 installed, averaging about $325 |
| Time | Under an hour to about 2 hours for a standard job |
| Who's qualified | Plumbers must be licensed and registered through Oklahoma's state Construction Industries Board. |
Broken Arrow, OK: what's different here
Broken Arrow sits in Tulsa County, about 15 miles and roughly 18 minutes from Tulsa via US-64 and OK-51. Its housing stock is largely suburban single-family homes, and the city's development accelerated after World War II, so many homes are newer than older central-city Tulsa housing. Tulsa's climate brings a mean first 28°F hard freeze around November 14 and a mean last one around March 17, a factor in seasonal plumbing and backflow timing.
Does my Broken Arrow home need a thermal expansion tank?
A thermal expansion tank is needed on a closed water system - one with a check valve, pressure-reducing valve, or backflow preventer on the cold supply. The Oklahoma Mechanical Code requires an expansion tank in every hot water system. The tank must be sized for the system and installed per manufacturer instructions.
How long does thermal expansion tank installation take?
Professional installation commonly takes less than an hour, or about 1 to 2 hours for a standard standalone job. Some plumbing sources say a standard install is measured in minutes to an hour when the system is already set up for it. Ask the pro for a time estimate in your quote.
Who can install an expansion tank in Broken Arrow, OK?
Plumbing contractors in Oklahoma must be licensed and registered through the state before performing work. Oklahoma's Construction Industries Board regulates plumbing trades statewide. Ask the pro for proof of license and insurance before work begins.
Do I need a permit for expansion tank installation in Broken Arrow?
Plumbing work in areas using state codes is subject to Oklahoma's Construction Industries Board rules. Permit requirements can vary by city, so confirm with Broken Arrow before starting. A licensed pro can help you determine what permits apply to your job.
What to do next
- Check whether your cold supply has a check valve, pressure-reducing valve, or backflow preventer - that closed system triggers the expansion tank requirement.
- Ask each pro for proof of an Oklahoma plumbing license and state registration through the Construction Industries Board.
- Request an itemized quote covering the tank, sizing, labor, and any permit fees - expect $150 to $450 installed.
- If you have a lawn irrigation system, schedule your annual backflow preventer test by a qualified professional at the same visit.
- 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.
