AirProHQ
Walnut, CA · Updated Nov 2026

22 HVAC contractors in Walnut: every one with a license we could verify.

AirProHQ lists 22 heating and cooling companies in Walnut, CA, every one matched to a license on the CSLB 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.

Walnut at a glance
License boardCSLB · number on every ad
Licenses renewing within 90 days2
Verify a license on the CSLB lookup

How we check every listing: our full verification methodology.

22Contractors listed
22License-verified · 100%

22 license-verified shown first · distances from the center of the listed offices

Sorted: license status, then name

HVAC contractors in Walnut, CA

License verified

D L HVAC

91789 · 1.9 miLicense 1120809 · to 2028
Public reviewsNone on file
CallProfile
License verified

Han Gary

91789 · 1.2 miLicense 828492 · to 2027
Public reviewsNone on file
CallProfile
License verified

Jd Air

91789 · under ½ mileLicense 1091749 · to 2028
Public reviewsNone on file
CallProfile
Where they're based

Where Walnut'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.

LZ Comfort HomeSteve's Heating & Air ConditioningS T W HVACChillest Industries LLCI Go Heating & Air ConditioningWeatherite CorporationJay's ServicesExpert HVAC Service IncHan GaryAlliance Industrial Refrigeration Services IncCinda Construction IncAir Temperature ControlJ C Air Conditioning IncExcellent G M E P Construction IncAurum ConstructionJd AirD L HVACHy HVAC ServiceAolus HVAC 91789
20 of 22 listings have a geocoded office address. Dots are offices, not service areas.License verifiedNot verified24/7
Know the fair price

What HVAC work costs in Walnut

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
Walnut FAQ

Hiring an HVAC contractor in Walnut

Answers built from Walnut's own listing data.

01

How do I check a Walnut HVAC contractor's license?

Ask for the license number and search it on the CSLB lookup (official site). 22 of the 22 listings here already match a license on the register; each of those profiles links straight to the lookup.

02

Why do most Walnut listings show no reviews?

Our Walnut data comes from the CSLB 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.

HVAC contractors near Walnut

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