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HVAC companies in Olympia, WA

14 HVAC companies with a Olympia business address are registered with Washington L&I (Thurston County). Registration means the state holds a bond and proof of liability insurance for each of them. Check any pro below before you hire.

Updated October 16, 2026 from the state register

14registered with the state
1pro gets your request

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Before you hire

1Registration active, same name as the estimate. Check it.
2Permits and rebates: ask who pulls the permit, and if a heat pump qualifies for your utility's rebate.
3Written estimate first. No big cash deposits.

14 registered HVAC companies

L&I register, Oct 16, 2026. A–Z. Listing isn't a recommendation.

BURGE SOLUTIONSBURGES*798CW · Construction Contractor · renews Feb 2027
COMFORT AIR SYSTEMS CORPCOMFOAS751PO · Construction Contractor · renews Oct 2027
COMFORT AIR SYSTEMS CORPCOMFOAS752PZ · Electrical Contractor · renews Oct 2027
CRYSTAL AIR SYSTEMSCRYSTAS996R8 · Electrical Contractor · renews Mar 2027
CUSTOM SHEET METAL INCCUSTOSM921PZ · Construction Contractor · renews Feb 2028
DAD'S HEATING & AIR LLCDADSHHA748LH · Construction Contractor · renews Jul 2028
DIAMONDBACK HVAC LLCDIAMOHL767P8 · Construction Contractor · renews Oct 28
DRYER DUCT PLUS LLCDRYERDP754JG · Construction Contractor · renews Apr 2027
MASTER MECHANICAL LLCMASTEML83373 · Construction Contractor · renews Nov 2027
MASTER MECHANICAL LLCMASTEML833P3 · Electrical Contractor · renews Nov 2027
PACIFIC AIR HEATING & A/C INCPACIFAH908LP · Construction Contractor · renews Oct 2028
PEAK HVAC LLCPEAKHHL752JJ · Electrical Contractor · renews Apr 2027
Show all 14
RAINIER AIR SERVICESRAINIAS808K6 · Construction Contractor · renews Aug 2028
SOUND GUARD SECURITY SYST INCSOUNDGS984BW · Electrical Contractor · renews Jan 2028

Common problems

No heat?AC or heat pump not cooling?

Other pros in Olympia

Garage door companies Tree services Septic and side-sewer contractors Electricians Plumbers

Common questions

How many HVAC companies are registered in Olympia?

14 with a Olympia business address, as of October 16, 2026. Many more from nearby towns also work in Olympia.

How do I check an HVAC company's registration?

Ask for their registration number and look it up on Check a contractor or L&I's Verify a Contractor. An active registration means they carry the bond and liability insurance the state requires.

Does Check the Pro send my request to several companies?

No. Each request goes to one registered local pro. If they can't take it, we find another.

Sources

Washington L&I contractor license data · The state's public register, refreshed here daily.

L&I Verify a Contractor · The official lookup, with bond, insurance and lawsuit details.

“Each applicant shall file with the department a surety bond issued by a surety insurer who meets the requirements of chapter 48.28 RCW in the sum of $30,000 if the applicant is a general contractor or $15,000 if the applicant is a specialty contractor.”

RCW 18.27.040

“the applicant shall furnish insurance or financial responsibility in the form of an assigned account in the amount of fifty thousand dollars for injury or damages to property, and one hundred thousand dollars for injury or damage including death to any one person, and two hundred thousand dollars for injury or damage including death to more than one person.”

RCW 18.27.050

“Contractor includes any person, firm, corporation, or other entity who or which, in the pursuit of an independent business undertakes to, or offers to undertake, or submits a bid to, construct, alter, repair, add to, subtract from, improve, develop, move, wreck, or demolish any building...”

RCW 18.27.010

Get one registered pro to call me

Free. Goes to one pro registered with Washington L&I.

Referral service, not a contractor. Privacy.