License verified
Walla Walla, WA · Updated Oct 2026
12 HVAC contractors in Walla Walla — every one with a license we could verify.
AirProHQ lists 12 heating and cooling companies in Walla Walla, WA, every one matched to a license on the Washington L&I register. These listings come from the license register rather than review sites, so most carry no public rating — a verified license with no reviews is normal here, not a warning sign.
Walla Walla at a glanceVerify a license on the Washington L&I lookup
License boardWashington L&I
Licenses renewing within 90 days1
How we check every listing: our full verification methodology.
12Contractors listed
12License-verified · 100%
12 license-verified shown first · distances from the center of the listed offices
Sorted: license status, then nameHVAC contractors in Walla Walla, WA
License verified
Blaze 2 Blizzard Htng/Clng LLC
License verified
Grassi Refrigeration Srvc Inc
License verified
Jim'S A Thru Z Rfrg & Htg
License verified
Mill Creek Mechanical
License verified
Powers Refrigeration LLC
License verified
Pro Heating & Air Conditioning
License verified
Sure Temp Mechanical LLC
License verified
Thermalwise Heating & Rfrg LLC
License verified
Total Comf Sl Htg Clg/Plb LLC
License verified
Walla Walla Refrigeration LLC
License verified
Grassi Services LLC
Where they're based
Where Walla Walla's contractors are based
Counted from the office address on each record. A contractor based near you usually means a shorter response window on a hot afternoon.
Know the fair price
What HVAC work costs in Walla Walla
National 2026 ranges from our cost guides. Ask any contractor for a written, itemized quote and compare it against them.
JobTypical cost
Diagnostic / service call$75 – $200
Capacitor replacement$100 – $250
Refrigerant recharge$200 – $600
Compressor replacement$1,300 – $2,800
Central air conditioner$3,900 – $7,900
Full HVAC (furnace + AC)$5,000 – $12,500
Sources: AC repair cost guide · HVAC replacement cost guide
Walla Walla FAQ
Hiring an HVAC contractor in Walla Walla
Answers built from Walla Walla's own listing data.
01
How do I check a Walla Walla HVAC contractor's license?
Ask for the license number and search it on the Washington L&I lookup (official site). 12 of the 12 listings here already match an active license; each of those profiles links straight to the lookup.
02
Why do most Walla Walla listings show no reviews?
Our Walla Walla data comes from the Washington L&I license register, not from review sites, so many licensed one-truck operations have no public review profile. A verified license with no reviews is not a red flag — ask for two recent local references instead.