Sigma Air Heating & Cooling

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About

About Sigma Air, A Legacy of Excellence: At the heart of Sigma Air 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 1999, Sigma Air 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 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’ll take 10% off 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!

Overview

Hired 3 times

Serves San Antonio, TX

Background checked

27 employees

27 years in business

Business hours

SunClosedMon7:00 am - 7:00 pm

Payment methods

This pro accepts payments via Cash and Credit card.

Social media

Instagram

Services offered

Duct and vent type

Property type

House

Condo/Apartment

Townhouse

Business

Projects and media

Reviews

Exceptional 5.0

31 reviews

5

100%

4

0%

3

0%

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Read reviews that mention:

Kimberly C.

3 weeks ago

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From Google

Ronnie provided excellent customer service!!! I am usually a skeptic so if a company offers a free service- the first thing I think is either they will come and find many things they need to fix and then charge an arm and leg or they do something that will make the device break within 30 days. Then they will expect me to call back for paid services! I still went through with the CPS recommended cleaning and eval. This is day 1- Ill be back if something surprising happens in the next 30 days ! Lol Anyways, Ronnie was awesome at this visit!!

Sigma Air Heating & Cooling's reply

Thank you so much for your kind words, Kimberly! I'm glad to hear Ronnie was able to deliver the quality service you were hoping for during your CPS cleaning and evaluation. We appreciate you giving us the opportunity to dispel any doubts, and we look forward to assisting you in the future.

Robin B.

3 weeks ago

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From Google

David came promptly and was extremely conscientious, even reading the instructions on my new unit. He was done in no time and it was a perfect set up.

Sigma Air Heating & Cooling's reply

Thanks so much, Robin! It's great to hear that David's prompt and thorough approach made a positive impact. Ensuring your new unit is set up perfectly is always our goal.

terek W.

4 days ago

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From Google

Sigma Air Heating & Cooling's reply

Yvonne M.

4 days ago

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From Google

We appreciate the free service through CPS program. The technician, Ronnie was very thorough and professional. Thank you again

Sigma Air Heating & Cooling's reply

Yvonne, thank you for taking the time to share this. I’m glad the CPS program service was helpful and that Ronnie took great care of you with thorough, professional work. We appreciate you choosing Sigma Air Heating & Cooling.

Matthew Z.

Jan 27, 2026

•

From Google

Sigma Air Heating & Cooling's reply

Credentials

Background Check

Alan Ruiz

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
Let’s Bring Comfort Home! Just bring us a written quote from a reputable, licensed company within the last 30 days, and we’ll take 10% off 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!
What advice would you give a customer looking to hire a provider in your area of work?
Check reviews and how long they have been in business. Also, make sure they are licensed by the state of Texas.
What questions should customers think through before talking to professionals about their project?
Lower price does not equal quality. Make sure you are getting what you are paying for.

Sigma Air Heating & Cooling

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