Pros411

HVAC contractors in San Marcos, CA

AC & heating

123 results

Sorted from nearest to farthest.

Registered and featured HVAC contractors

Other local businesses

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HVAC contractors in San Marcos, CA: by the numbers

There are 123 HVAC contractors with a phone number within 10 miles of San Marcos, CA, from public Google Maps data and state license records. 10 have a state license we could confirm, and those with a Google listing average 4.8 stars across 28,786 reviews.

with a phone number
123
with a confirmed state license
10
open 24 hours or for emergencies
46
come to you (service area)
13

Highest rated on Google near San Marcos, CA

Businesses with at least 20 Google reviews, sorted by rating. Ratings come from Google, not from Pros411.

  1. 1Sweeps Luck5 ★ · 541 reviews · 7.2 mi
  2. 2Oasis Plumbing, Heating & Air Conditioning5 ★ · 285 reviews · 3 mi
  3. 3Coastal Refrigeration Heating and Air Conditioning, Inc.5 ★ · 180 reviews · 6.9 mi
  4. 4Max Air HVAC5 ★ · 153 reviews · 4.8 mi
  5. 5Viking Heating & Air - AC Repair, Service & Installation of San Diego5 ★ · 132 reviews · 4.7 mi

Hours

Of the 100 businesses in this search that list their hours on Google, 83 are open on Saturdays and 70 on Sundays. 46 are open 24 hours. 55 have 4.5 stars or more with at least 10 reviews.

Good to know in San Diego

Coastal San Diego is mild all year, while inland neighborhoods get much hotter in summer. Many older coastal homes have no central air, so mini-splits and window units are common.

For a home without ducts, ask about a ductless mini-split: it cools room by room without opening walls.

Weather and your home in San Diego (area)

days a year at 90°F or more
3
days a year at 100°F or more
0
freezing nights a year (32°F or below)
0
hail reports in San Diego County, 2016 to 2025 (1 of 1 inch or larger)
10
  • The hottest months are August and September. ncei.noaa.gov
  • Since January 1, 2023, a new central AC installed here must meet the Southwest regional standard: at least 14.3 SEER2 plus a minimum EER2, which measures efficiency in peak heat (for split systems under 45,000 BTU: 11.7, or 9.8 if the unit is 15.2 SEER2 or higher). eere.energy.gov

Heat and freezes: NOAA 1991-2020 climate normals at San Diego Lindbergh Field (USW00023188). Hail: NOAA Storm Events reports by county; they depend on how many people report, so use them to compare areas. Checked October 22, 2026. NOAA Storm Events

What an HVAC contractor charges

National ranges published by cost guides, not prices from the businesses on this list. Always get the price in writing.

  • Most AC repairs: about $150 to $700 (HomeGuide, HomeAdvisor, Fixr).
  • Service call or diagnostic: $75 to $200.
  • Capacitor: about $100 to $475; compressor: about $600 to $3,000, by source.
  • New central AC, installed: about $3,900 to $13,500 (HomeAdvisor, HomeGuide, Fixr, Trane).

AC repair cost: common repairs and when to replace · New AC unit cost: central air and mini-splits

Before you call

  • Check the thermostat, the breakers and the air filter first.
  • Have the brand and age of your system (on the label of the outdoor unit).
  • Ask about the diagnostic fee and after-hours rates.
  • If refrigerant is low, ask them to find and fix the leak, not just recharge.
  • Ask for the contractor’s license number.

Frequently asked questions

How many HVAC contractors are there in San Marcos, CA?

There are 123 with a phone number within 10 miles, from public Google Maps data and state license registries.

How do I check an HVAC contractor's license in California?

In California the license is issued by the Contractors State License Board (CSLB); you can look up the number at https://www.cslb.ca.gov. Pros411 shows "License verified" when the number is in that registry and matches the business phone. 10 of the HVAC contractors on this list have it confirmed.

Which HVAC contractors in San Marcos, CA have the best Google ratings?

Among those with at least 20 Google reviews, the highest rated in this search are Sweeps Luck (5 stars, 541 reviews), Oasis Plumbing, Heating & Air Conditioning (5 stars, 285 reviews), Coastal Refrigeration Heating and Air Conditioning, Inc. (5 stars, 180 reviews).

Are there HVAC contractors open on weekends in San Marcos, CA?

Yes: of the 100 that list their hours, 83 are open on Saturdays and 70 on Sundays.

Are there 24-hour HVAC contractors in San Marcos, CA?

Yes: 46 list 24-hour hours or take emergency calls. Use the "24/7 emergencies" filter on the list.

Are there HVAC contractors who speak Spanish in San Marcos, CA?

Yes: 1 says on their website that they serve customers in Spanish (for example "Se habla español"). Use the "Speaks Spanish" filter on the list.

How do I contact an HVAC contractor?

Call or WhatsApp them directly from the list or their listing. Pros411 charges customers no fee and is not a middleman: you deal with the pro directly.

Why do some listings show first?

At the top, in a yellow box, are featured listings: they are paid and labeled "Featured". Then come registered pros, in the order they last bumped their listing, and at the end businesses from public data, from nearest to farthest.