About

SM Air / San Marcos Air Conditioning serves the residential and commercial HVAC needs of customers in the San Antonio to Austin corridor. Established in 1986, we have stood the test of time and continued to thrive. We are thankful to have been voted the Best Heating & A/C Services Company in Hays County for 2013, 2014, 2015, 2017, 2018 & 2019 and 2020 in the Annual Best of Hays sponsored by the San Marcos Daily Record.

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