About Modern Air Systems

HVAC is a family trade for us. Our family has worked in heating and air conditioning in San Antonio for three generations, and Andy brings more than 25 years of hands-on HVAC experience to every job. Today he runs Modern Air Systems as a family-owned HVAC company, with his son Andrew working alongside him.

Being a family-owned HVAC company is not a slogan for us. It means the person who answers for the work is the owner, not a call center. It means we explain what we find in plain language, and we would rather lose a sale than sell you something you do not need. When we leave your home, our name is on that installation, and so is our family’s reputation.

We started Modern Air Systems because we kept seeing homeowners pay for poor installations, sometimes two or three times over. Undersized systems, skipped steps and rushed change-outs leave families with high bills, hot rooms and repeat repair calls. We would rather do it right once, and that is the kind of San Antonio HVAC company we set out to be.

That is why every customer gets the same four things from us:

• An honest, repair-first opinion before we recommend anything new
• A fair, written price before any work starts
• A quality installation, sized for your home and set up to the manufacturer’s specifications
• A real warranty, with a 1-year labor warranty from us on system replacements

New equipment also carries the manufacturer’s parts warranty, typically 10 years when the equipment is registered, subject to the manufacturer’s terms. We help you register it so that coverage is in place.

Modern Air Systems grew out of our construction background. Our sister company, AMG Contractors, is a general contractor that builds and renovates facilities on military installations around San Antonio, where the work has to meet strict federal standards. AMG is a separate company. As a family-owned HVAC company, we bring that same discipline to every home we work in: careful planning, clean job sites, safety first and work that is checked before we call it done.

Because AMG is a design-build contractor, we can also help homeowners who are planning a larger remodel. If you are adding a room, finishing a space or reworking your home’s layout, we can plan the heating and cooling as part of the project instead of as an afterthought.

We know every technician we send, because a family-owned HVAC company lives on its name. Our technicians are background-checked, wear the Modern Air Systems uniform and drive our branded vans, so you always know who is at your door. We train the way we work: one job at a time, done right the first time, with respect for your home and your schedule.

You may have seen us on local TV. Modern Air Systems was featured on KENS 5 Great Day SA, where Andy shared our family story, and you can watch more of our segments on our In the Spotlight page.

As a full-service San Antonio HVAC company, we handle residential and light commercial heating and cooling from start to finish. Our most requested services are HVAC system replacement, AC repair and the Maintenance and Comfort Club plan. We also handle heating and furnace repair, heat pumps, ductwork, ductless mini-splits, thermostats and second opinions on quotes from other companies. You can see every service on our services page.

Working with a family-owned HVAC company should feel simple. Here is how a typical job goes with us:

1. You call, text or send a request. Tell us what is going on, and we schedule a time that works for you.
2. We look before we quote. A technician diagnoses the problem in person, or for a system replacement you can send a photo of your equipment’s nameplate for a same-day price estimate.
3. You get a written price. We explain what we found, give you an honest repair-first opinion and put the price in writing before any work starts. Final pricing is confirmed after an in-home or photo-based assessment.
4. We do the work right. We protect your floors and work area, follow the manufacturer’s specifications and test everything before we leave.
5. We walk you through it. We show you what we did, answer your questions and help you register new equipment so the manufacturer’s warranty is in place.

If you want a second opinion on a quote from another company, we are happy to look at it. Our goal is to give you a clear, honest answer, even if that answer is a smaller repair instead of a new system. That is what you should expect from a family-owned HVAC company, and it is what we expect from ourselves every day.

We are a San Antonio HVAC company, and we serve homeowners and businesses across the I-35 corridor, including North San Antonio, New Braunfels, San Marcos, Austin and Round Rock. If you are looking for a family-owned HVAC company close to home, call the San Antonio line at (210) 222-0201 or the Austin line at (737) 222-0414.

Modern Air Systems is a licensed and insured San Antonio HVAC company. Our Texas Air Conditioning and Refrigeration contractor license is TACLB27872E, and we also hold a Texas Class A Air Conditioning and Refrigeration license, TACLA114325E. You can verify any HVAC contractor’s license through the Texas Department of Licensing and Regulation license search.