About Us

Don’t let HVAC or plumbing issues slow you down. Get fast help from Comfort- Air Engineering and Primo Plumbing, Inc. Call us now at (210) 987-3672 to request an immediate appointment with our experts!

There is nothing more inconvenient than struggling with an AC or plumbing problem. This is why at Comfort- Air Engineering and Primo Plumbing, Inc we are committed to providing fast and efficient service no matter the issue. There is no HVAC or plumbing job too small or too big for us to handle. We will help you repair, replace, design, and maintain your indoor comfort or plumbing system to fit your particular needs.

The Legacy of Comfort-Air Engineering, Primo Plumbing, and Freund Enterprises Inc

For over six decades, Comfort-Air Engineering, Primo Plumbing, and Freund Enterprises have been at the forefront of delivering exceptional air conditioning, plumbing, and mechanical services in San Antonio, TX, and beyond. Founded by mechanical engineers Robert and John Freund in 1964, the company was born out of a shared vision to design and construct air conditioning systems for those in need of indoor cooling solutions.

Drawing on their mechanical engineering expertise from The University of Texas at Austin, the Freund brothers dedicated themselves to perfecting their craft and revolutionizing the industry. Their commitment to delivering amazing service quickly earned them a reputation for unparalleled workmanship and personalized attention. With each passing year, Comfort-Air Engineering established itself as a trusted partner for residential and commercial customers seeking reliable and efficient air conditioning systems. In 2001, the second generation of the Freund family assumed leadership, embracing the responsibility of carrying the torch of excellence. This pivotal moment marked a period of growth and expansion for the company. Recognizing the need for comprehensive solutions, Gen2 acquired a local plumbing company, giving rise to Primo Plumbing, Inc. The addition of plumbing services allowed Comfort-Air Engineering and Primo Plumbing to offer a holistic approach to their customers, ensuring their comfort and satisfaction in every aspect of their home or business.

Not content to rest on their past successes, the family’s entrepreneurial spirit propelled them forward. Later that year, Freund Enterprises, Inc was established, catering to the commercial and industrial sectors in South Texas. This strategic move showcased their adaptability and commitment to meeting the diverse needs of their expanding customer base. As the third generation prepares to assume the helm in 2024, the family’s unwavering dedication to their core values remains the bedrock of their success. Their commitment to fostering a family environment, hiring self-motivated employees, cultivating a team-oriented approach, embracing grit and tenacity, and protecting their hard-earned reputation has set them apart in the industry.

Throughout their illustrious history, Comfort-Air Engineering and Primo Plumbing have strived to evolve with the times while maintaining their unwavering commitment to customer satisfaction. By blending timeless values with modern innovations, they ensure their services resonate with loyal customers, new and old. Join us as we celebrate our upcoming 60th anniversary, a testament to the trust and loyalty bestowed upon us by our valued customers. As we enter this new chapter, we invite you to experience the warmth of our family-oriented approach, backed by six decades of expertise and unwavering commitment. Whether you require air conditioning, plumbing, or mechanical services, Comfort-Air Engineering, Primo Plumbing, and Freund Enterprises are here to exceed your expectations and create lasting comfort for generations to come. Welcome to the Comfort-Air Engineering and Primo Plumbing family, where our core values drive everything we do.

Engineering your Comfort for Life!

Upfront Pricing: Know what you’ll pay before any work begins. This eliminates unpleasant surprises on your part!

Free Estimates Available: Get a free estimate on new system replacements, whether for heating, AC, or indoor air quality. This is a no-obligation estimate.

100% Satisfaction Guaranteed: We make every effort to provide you with the results you need. If you are not completely satisfied with our service, we will do everything possible to remedy the situation.

Over 50 Years in Business: We are an experienced team of indoor comfort specialists. No matter your problem, we’ve got a solution for you. After all, we’ve had over half a century to perfect our craft!

5-Star Rated Company: Your neighbors trust us as their go-to AC experts. We are proud to be an Angie’s List Super Service Award winner eight years in a row.

Family Owned & Operated: Our staff may number more than 200, but we operate with good old fashioned values. Every customer is treated to the personal attention they deserve. When you work with us, you’re part of the family!

Call Comfort- Air Engineering and Primo Plumbing, Inc today at (210) 494-1692 to schedule your next HVAC service in San Antonio, TX. Whether you need repair, replacement, or annual maintenance, you can expect quality craftsmanship from start to finish.

Check out more of our videos on our Youtube page!

protection plans

  • planned maintenance
  • bi-annual or quarterly inspections
  • 10% discount on repairs

Meet The Team

Our team of experts dedicated to delivering amazing service.
employee Matthew Freund smiling at the camera
employee Patrick Freund smiling at camera
employee tom freund smiling for the camera
Employee Clint Wurzbach smiling at the camera
employee Mike Stahl smiling at the camera
employee Matthew Freund smiling at the camera
employee Patrick Freund smiling at camera
employee tom freund smiling for the camera
Employee Clint Wurzbach smiling at the camera
employee Mike Stahl smiling at the camera

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.