Highland AC Sales and Service is a San Antonio-listed HVAC company with deep roots in South Texas. Per their website, the company has been serving the Texas coast — including Corpus Christi and the Coastal Bend — since 1976. With a 4.9-star rating across 92 reviews, Highland AC offers 50 years of market presence and positions itself firmly on honest, no-gimmick service.

Services cover air conditioning installation, repair, and maintenance; heating system installation and repair; and indoor air quality work including dehumidifiers, UV lights, air purifiers, ventilation, and filtration. The company also offers blow-in insulation to reduce energy costs by sealing homes against drafts and thermal loss, with the company citing potential savings of up to 30% on energy bills. Duct cleaning rounds out the service portfolio.

What sets Highland AC apart in its messaging is the emphasis on not upselling. Pricing is described as transparent with no hidden fees. The company is locally owned (not a franchise), and technicians are described as experienced professionals who don't cut corners. Reviews name specific technicians — Trevor Humiston, Armando, Tymon, and Allison — across a variety of jobs including large window AC/heater installation, duct cleaning, and membership-based tune-ups.

The company offers a membership program with regular tune-up visits. Multiple reviews come from membership customers who note consistent quality across different technicians on each biannual visit. The company uses a text-notification system so clients know when a technician is en route.

For San Antonio and South Texas property owners looking for a well-established HVAC company with a 50-year track record, Highland AC is a credible option for both service and equipment purchases.