AirProHQ
San Marcos, CA · Updated Oct 2026

22 HVAC contractors in San Marcos — every one with a license we could verify.

AirProHQ lists 22 heating and cooling companies in San Marcos, CA, every one matched to a license on the CSLB register. The 92069, 92078, 92079 ZIP codes hold 100% of them. 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.

San Marcos at a glance
License boardCSLB · number on every ad
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 San Marcos, CA

Where they're based

3 ZIP codes hold 100% of San Marcos's listed offices

Counted from the office address on each record. A contractor based near you usually means a shorter response window on a hot afternoon.

  1. 019206912
  2. 02920786
  3. 03920794
Ace ContractorsAction Air Conditioning And HeatingAcuna'S Polar AireAlve MechanicalAnthony Moore ConstructionBetter Air SystemsChampion Air Conditioning & HeatingDr Hvac LLCGreen Building Test & Balance CoHome Run Heating And Air ConditioningKihle'S H V A COasis Plumbing Heating & Air ConditioningRandle Air Conditioning IncSmart Decisions Sds IncSocal Construction Plumbing H V A CTotal Home Comfort H V A C Services 9206992078
17 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 San Marcos

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
San Marcos FAQ

Hiring an HVAC contractor in San Marcos

Answers built from San Marcos's own listing data.

01

How do I check a San Marcos 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 an active license; each of those profiles links straight to the lookup.

02

Why do most San Marcos listings show no reviews?

Our San Marcos 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.

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