Fast and reliable repair services for heating and air conditioning systems, with thorough diagnostics and transparent pricing.
Professional installation of new HVAC units, including complete system replacements with expert guidance and efficient service.
Preventive maintenance plans to keep your HVAC system running efficiently and extend its lifespan.
Immediate response for urgent HVAC issues to restore comfort quickly and minimize downtime.
Free or waived-fee second opinions to ensure accurate diagnoses and fair solutions for your HVAC needs.
Mr.Zach, was very professional and thorough and explained to me step-by-step what was wrong with my HVAC. They were very patient, even though we had bumps in the road with the home warranty. Overall, the service was excellent. I will recommend their service.
ASC heating and air have highly professional and courteous personnel. JR did a great job explaining my options regarding my malfunctioning 15 year old AC. He fully explained the issues the AC had. He gave me a quote to repair it and fair quotes to replace it. I decided to buy a new complete system. The technicians Scott and Jorge were very professional and got the job done in one day. I’m very happy I chose ASC.
They came out immediately for a second opinion and waved the service fee due to it being a second opinion. They were fast and friendly really taking the time to review the issue and my story. Pricing is reasonable and Ron really worked with me and Marsha at the office was so kind and helpful. They have veteran discounts, great service and payment plans if needed. The tech showed up on time for repairs and they didn't take long just to milk the labor rate. The entire experience was amazing and comfortable and they were able to get my AC back up and running! The tech was knowledgeable, explained everything he was doing to me, walked me through it and was very communicative! Highly recommend!
Quality work and exceptional service at a fair price. I was incredibly impressed with their timeliness, customer service, and commitment to fully answering my questions and correctly diagnosing the problem. Zach did an outstanding job thoroughly examining my entire unit—especially after another company I called the week before had failed to do so properly. He was very knowledgeable and patient with my many questions. JR was also wonderful. He went above and beyond to accommodate my hectic work schedule and was extremely helpful in guiding me through my options. In the end, they successfully repaired my unit, and I’ve since signed up for their service program. When the time comes to replace my unit, I’ll definitely be using ASC Heating and Air.
I had a great experience with Zack, the AC technician who came out to my house. He was very nice, professional, efficient, and he fixed the issues with my AC quickly and thoroughly. He also made sure to answer all of my questions without rushing me. On top of that, Zack was incredibly patient with me and my dogs — not everyone is so understanding, so I really appreciated it. Overall, his friendly attitude, the quality of his work, and how fast he got everything running again definitely puts my confidence in this company. Highly recommend.

Your trusted partner for year-round comfort in San Antonio.
No photos available
ASC Heating & Air Conditioning provides expert HVAC services for residential and commercial clients in San Antonio. With a 4.9/5 rating from over 500 reviews, we specialize in repairs, installations, and maintenance with a focus on quality work, fair pricing, and exceptional customer service. Our knowledgeable technicians, like Zach and JR, offer thorough diagnostics, clear explanations, and timely solutions, including veteran discounts and payment plans. Trust us for reliable heating and cooling to keep your home or business comfortable in any season.
Claim ASC Heating & Air Conditioning to update business info, respond to reviews, and access analytics.