Danville, CA · Updated Nov 2026

18 HVAC contractors in Danville: every one with a license we could verify.

AirProHQ lists 18 heating and cooling companies in Danville, 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.

Danville at a glance
License boardCSLB · number on every ad
Licenses renewing within 90 days1
Verify a license on the CSLB lookup

How we check every listing: our full verification methodology.

18Contractors listed
18License-verified · 100%

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

Sorted: license status, then name

HVAC contractors in Danville, CA

Where they're based

Where Danville'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.

Jensen H C Plumbing IncR & J Construction IncAlvarez Abraham KAir Design Heating & CoolingAscent IncQualtech Heating & CoolingM-23 Mechanical SystemsOlsson Plumbing CompanyS & H Construction IncBoscolai ConstructionHVAC Energy SolutionsAscent Conserve IncCaw Air Construction IncBaldwin Refrigeration LLC 9452694506
14 of 18 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 Danville

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
Danville FAQ

Hiring an HVAC contractor in Danville

Answers built from Danville's own listing data.

01

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

Ask for the license number and search it on the CSLB lookup (official site). 18 of the 18 listings here already match a license on the register; each of those profiles links straight to the lookup.

02

Why do most Danville listings show no reviews?

Our Danville 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.