Best HVAC Contractors & AC Repair in San Marcos, TX 78666

There are 22 HVAC contractors in San Marcos, TX 78666 listed in this directory. Their average Google rating is 4.9 out of 5, based on 5,347 reviews in total. The most reviewed are Woods Comfort Systems (3,119 reviews), SM Air A/C & Heating (796 reviews), AirOne Heating and Air Conditioning (383 reviews). As of Friday 1:46 PM CT, 22 of them are open.

Whether you need AC repair, heating and cooling service, furnace repair or a new HVAC installation, compare local HVAC companies by Google rating, reviews and opening hours below.

21 of them hold a rating of 4.5 stars or higher, 4 are listed as open 24 hours a day, seven days a week, and 13 are open on Sundays. By Google Maps category, the list includes 19 HVAC contractors, 2 air conditioning contractors and 1 air conditioning repair service. Highly rated choices with at least 20 reviews include SM Air A/C & Heating (5.0 from 796 reviews) and Authentic Air (5.0 from 121 reviews). Phone numbers are available for 21 of the 22 listings.

What does it cost?

AC Replacement Cost $5,000–$8,300
Furnace Replacement Cost $2,823–$6,897
Heat Pump Cost $4,236–$7,942
AC Repair Cost $150–$650
HVAC Replacement Cost $5,000–$12,500
Furnace Repair Cost $133–$505

All price guides on HVAC Cost Guide →

Frequently asked questions

How many HVAC contractors are in San Marcos, TX 78666?

This directory lists 22 HVAC contractors in San Marcos, TX 78666.

Which HVAC and AC repair companies in San Marcos, TX 78666 have the best reviews?

Among listings with at least 10 Google reviews, the highest rated are SM Air A/C & Heating (5.0 from 796 reviews), Authentic Air (5.0 from 121 reviews), American Air Heating and Air Conditioning (5.0 from 110 reviews).

Which HVAC contractors in San Marcos, TX 78666 are open now?

As of Friday 1:46 PM CT, 22 of the 22 HVAC contractors with published hours were open, including Woods Comfort Systems, SM Air A/C & Heating and AirOne Heating and Air Conditioning. Opening status is based on the hours listed on Google Maps, so call ahead to confirm.

Are there 24-hour or emergency HVAC contractors in San Marcos, TX 78666?

Yes. 4 listings are open 24 hours a day, seven days a week, including AirOne Heating and Air Conditioning, So Cool Service, LLC and PerfectTemp Heating & Air Conditioning. Businesses that are open around the clock are the most likely to take emergency calls; confirm by phone before you need them.

Which HVAC contractors in San Marcos, TX 78666 are open on Sunday?

13 listings have Sunday hours, including Woods Comfort Systems, AirOne Heating and Air Conditioning and Quality HVAC & Refrigeration.

How do I find HVAC contractors near me in San Marcos?

Each listing shows the address, phone number, opening hours and a map with directions. Open a listing and tap Directions to get the route from where you are.