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Now Serving San Marcos,
Kyle, & Buda

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50+ Years of Experience in Serving San Antonio & the Surrounding Areas

When we opened our doors in 1964, we made it our mission to always provide fast, high-quality HVAC and plumbing solutions to residents throughout the greater San Antonio area. As a family-owned and -operated business, we also believe in always offering the best customer service experiences. Over the past five decades, we have continuously delivered on these goals, becoming a leading home services provider for our community. When you choose to work with our team, we guarantee you’ll be satisfied with our services.

If your San Antonio area home is in need of HVAC  services, call us today at (210) 494-1691 to schedule an appointment!

Our HVAC Services

At Comfort-Air Engineering, we understand how important it is to have a comfortable indoor climate all year-round. Our comprehensive heating and cooling services were engineered to always keep you comfortable.

HVAC Repair

If your air conditioner isn’t blowing out cold air or your furnace is making weird noises, then call our team for repairs! Our technicians are highly-trained and experienced, meaning they can quickly get to the root of your problem and apply the appropriate repair.

HVAC Installation & Replacement

Unfortunately, your furnaces, air conditioners, heat pumps, or other HVAC systems aren’t designed to last forever. When it comes time to replace your system, either due to age, increased repairs, or other issues, our team offers excellent installation services. We’ll help you choose the best system for your needs and install it seamlessly and efficiently.

HVAC Maintenance

Preventative maintenance and tune-ups performed by a professional are some of the best ways to ensure your HVAC systems are working at their best for the years to come. When you have maintenance performed by our team at Comfort-Air Engineering, you’ll extend the life span of your heating and cooling units, as well as prevent against shutdowns. To get the most out of your systems, join our Protection Plan! For one low yearly price, you’ll enjoy preventative maintenance twice a year, priority scheduling, discounts, and more.

Whatever your heating or air conditioning need, give us a call at (210) 494-1691 or reach out online to request HVAC services.

Our Plumbing Services

Make Primo Plumbing your go-to for all your plumbing needs in the San Antonio area! Plumbing issues can be a serious headache for homeowners, so our team is here to alleviate any of your plumbing concerns. From clogged toilets to leaky pipes, Primo Plumbing has you covered with any plumbing service you need. Our plumbing services include:

Ensure your plumbing is running smoothly by contacting the pros at Primo Plumbing! Call us today at (210) 494-1691 to schedule an appointment.

Over 50 Years Of Five Star Service

Excellent customer service!

I was so pleased with the excellent customer service provided by Luis, Eric, Camillo and Mark. Also, your Customer Service Accounts Payable was so sincere and efficient. I would and will always recommend Comfort Air to anyone.

Suzy H.

Very dependable!

I've been a customer of Comfort-Air Engineering Inc for about ten years. I like them because they are very dependable. When I call them, they come out. A few years ago, they installed a new heating and air conditioning system for…

Robert H.

Real professional job!

Replacing faucets throughout house was no problem for these pros, even though there were a variety of fittings they had to deal with. Showed up on time and worked efficiently. Real professional job at a reasonable price.

Bob K.

We wouldn't trust any other!

We have always appreciated your family owned and operated business. We have been with your company for approximately 20 years and wouldn’t trust any other.

Gwen R.

On time, professional and courteous!

Comfort-Air Engineering Inc. recently installed a generator for us and they also did some plumbing work. This was our first experience with the company. They were on time, professional and courteous. Moreover, they did exactly what we asked them to do…

David A.

financing available

  • Buy Now – Pay Over Time
  • convenient monthly payments
  • Quick Credit Decisions


  • Bi-annual/planned maintenance
  • Priority Service Call and Scheduling
  • Discounts on Parts & Labor
Winners in the 2024 My San Antonio Awards Click the image to read more!

Why Choose Us

Engineering your comfort for life
  1. Excellent Customer Service & Experience
  2. High and Known Reputation - 5-Star Reviews
  3. Full Transparency - Upfront Pricing and Satisfaction Guarantee

At Our Company, customer satisfaction is our number one priority. Our highly regarded reputation, backed by five-star reviews, stands as a testament to our outstanding service. Plus, you can rest easy knowing you'll always be kept in the loop and have access to upfront, transparent pricing along with our satisfaction guarantee.

Meet The Team

Our team of experts dedicated to delivering amazing service.
employee matthew freund smiling for the camera
employee patrick freund smiling for the camera
Employee Tom Freund smiling at the camera
employee clint wurzbach smiling for the camera
employee mike stahl smiling for the camera
employee matthew freund smiling for the camera
employee patrick freund smiling for the camera
Employee Tom Freund smiling at the camera
employee clint wurzbach smiling for the camera
employee mike stahl smiling for the camera

Affiliations & Awards

Rely on our award-winning team for all your home services needs.

We Support Our Troops

At Comfort-Air Engineering and Primo Plumbing, we proudly support our troops. As active members of our community, we want to show our appreciation to the men and women who protect our country. To show our thanks, we offer a military discount to our troops!

Comfort Air residential van Freud residential service van
Careers We are always looking for talented professionals to join our team

Are you looking for a fulfilling and rewarding career in HVAC or plumbing? Apply to work with us! You’d be joining a fun, family-oriented team that’s passionate about helping our customers, while also getting an opportunity to advance your home services career.

our commitment The Contractor of choice by our customers The Employer of choice by our employees The Model of Excellence & Integrity for our industry

Our Core Values

Our values are the driving force behind all of the work we do!
Family Environment
grit /
protects our reputation
Family Environment
grit /
protects our reputation