AirProHQ
Union City, CA · Updated Nov 2026

15 HVAC contractors in Union City: every one with a license we could verify.

AirProHQ lists 15 heating and cooling companies in Union City, CA, every one matched to a license on the CSLB register. 1 advertise 24-hour emergency service. 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.

Union City 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.

15Contractors listed
15License-verified · 100%
1Advertise 24/7 service

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

Sorted: license status, then name

HVAC contractors in Union City, CA

Where they're based

Where Union City'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.

Fine Wine Refrigeration LLCAzer Heating & CoolingRabboni Mechanical IncSunrise RefrigerationA J Heating & Cooling IncEz Air ControlLunar Air SystemsCold Storage Refrigeration IncAir Excel IncAlpha Electric And Construction IncDynamic Technical SolutionsCold Storage Manufacturing IncIndfoss Refrigeration IncWangs Contractor LLC 94587
14 of 15 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 Union City

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
Union City FAQ

Hiring an HVAC contractor in Union City

Answers built from Union City's own listing data.

01

How do I check an Union City HVAC contractor's license?

Ask for the license number and search it on the CSLB lookup (official site). 15 of the 15 listings here already match a license on the register; each of those profiles links straight to the lookup.

02

Which Union City HVAC companies advertise 24/7 service?

1 listing in Union City, CA advertise round-the-clock service; filter the list above by 24/7 to see them. We record the claim from their own websites, not verified hours.

03

Why do most Union City listings show no reviews?

Our Union City 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 Union City

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