After having major difficulty with another air-conditioning company, Sigma did what the other company couldn’t do in a few minutes. Communication by the person putting in the air conditioner has been great! We will definitely be using them for future use.
Sigma Air Heating & Cooling
In high demandLicensed
- 238 hires
- Based in San Antonio, TX
- 32 years in business
- 27 employees
- Background checked
- License verified
About Sigma Air Heating & Cooling
About Sigma Air, A Legacy of Excellence: At the heart of Sigma Air Heating & Cooling is a story of perseverance, vision, and the pursuit of building something bigger than just a business—it’s about building trust, comfort, and community. Founded in 1994, Sigma Air Heating & Cooling began as a small, family-led venture in San Antonio, Texas. Over the years, it has grown into one of the most respected HVAC providers across the state, specializing in residential, multifamily, and commercial HVAC solutions. For decades, Sigma Air Heating & Cooling has led the way in HVAC excellence. Now, we’re bringing that same quality and commitment to homeowners across Greater San Antonio. Whether you’re dealing with a broken AC, looking to upgrade your system, or need fast emergency help, we’ve got your home covered. Let’s Bring Comfort Home! Just bring us a written quote from a reputable, licensed company within the last 30 days, and we will beat the quote for new equipment installations or complete new HVAC system installations. *Cannot be combined with other offers*. Simply make an appointment by clicking the button below and one of our staff members will reach out on how to save you money!
Reviews
David was punctual and took care of the service requested in a timely manner. He also recommended additional services which were completed after approval the same day.
Crystal replaced my thermostat. She was very professional.
Got back with me in a timely manner.
Great follow up.
Sigma Air responded quickly and was able to fix the issue the same day. The technician was kind and professional. Would definitely recommend
They came out to give an estimate on low air flow at five vents. They called to keep me informed for their arrival time. I didn’t use their services for the repair but liked the professionalism and communication that was provided.
Thank you Sigma Air Heating for your excellent service and professionalism! Our client was VERY happy with your work and how quickly you were able to accommodate her.
Worked as promised at rate that was promised. One nit is they do t disclose the credit card fee until it’s time to pay.
I had a wonderful experience with Sigma. They came look at the issue and knew exactly what the problem was. They came back out the next morning with parts and he finished in no time. I will definitely use them again.
Great team. Quick repair. Fair price
The technician did a great job addressing the repeated issue of the HVAC system shutting off. He was able to quickly diagnose and fix the problem. Before this, I even had two past HVAC technicians from a different company come and check and they did not adequately resolve the issue. I’ll definitely be working with this vendor again and plan to utilize them for ongoing preventative maintenance as well.
This company was friendly, professional and courteous! Highly recommended them to anyone needing AC service.
Sigma accurately diagnosed my AC problem after another company I did not call arrived earlier and told me my repair would cost me less than $1,000, because I needed refrigerant. Sigma discovered I only needed a new coil. Fortunately, I had sent the other company away. I found Sigma professional, courtious, and trustworthy.
I was never called to say when they were coming and missed them at the door. I was home. I called several times and never could get an eta. Worst customer service ever!!!
great experience with the technicians Troy and Ronnie. A piece of paper got into the motor and they took it out right away. highly recommended.
the man at Sigma air are amazing but they haven't fixed my air conditioning yet it's still not working to correct way I think I need a different unit we're not sure what's going on it's not cooling in the afternoon please come out and see what you can do and you take care of it
Sigma responded quickly and had no issue with installing equipment that I had purchased from a third party. The technicians arrived promptly for the appointment and gave me a more than fair quote for the replacement of the condenser unit and the cased coil and immediately went to work. it took a bit longer than originally anticipated, mainly due to the need to run a communications cable from the air handler to the condenser unit. The only slight issue that I encountered was the lack of proper sealing of the holes in the case of the cased coil for the copper lines and for the drain pipe. I did that myself with some foil tape and sealing compound. I highly recommend Sigma for your HVAC projects.
They did an honest and amazing job! I should have just gone with them in the first place. The other company wanted to charge me thousands more for things I truly didn’t need. These guys came out, inspected everything, gave me their honest feedback, and were able to fix it all in one day. I really appreciated their transparency and professionalism throughout the entire process. I definitely plan on sticking with them for future tune-ups and any other HVAC needs. Highly recommend!
Ronnie was quick and thorough. Appreciate him getting my AC back up and running.
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Sigma Air Heating & Cooling★ 4.9
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