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HVAC companies in Bellevue, WA

9 HVAC companies with a Bellevue business address are registered with Washington L&I (King 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

9registered 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.

9 registered HVAC companies

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

A F GAS INSTALLATION LLCFGASIFG816RS · Construction Contractor · renews Dec 2027
ALPHA HEATING & A/C INCALPHAHA976PS · Electrical Contractor · renews Oct 2027
ALPHA HTG & AIR COND INCALPHAHA9767S · Construction Contractor · renews Nov 2027
ALTAIR PRO SERVICES LLCALTAIPS755Q1 · Electrical Contractor · renews Nov 2027
AUDIO PLUS LLCAUDIOPL993KD · Electrical Contractor · renews May 2027
DAIKIN COMFORT TECH DIST INCDAIKICT766CA · Electrical Contractor · renews Apr 2028
EASTSIDE HEATING & COOLING LLCEASTSHC746OC · Construction Contractor · renews Sep 2028
TRANETRANE**925BD · Electrical Contractor · renews Jan 2028
WALSH EQUIPMENT REPAIR INCWALSHER997RL · Electrical Contractor · renews Feb 2027

Common problems

No heat?AC or heat pump not cooling?

Other pros in Bellevue

Garage door companies Electricians Plumbers

Common questions

How many HVAC companies are registered in Bellevue?

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

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.