Always Thayer for you!

Trusted HVAC Company in New Braunfels, TX

Our Featured HVAC Services

As a trusted HVAC Company serving New Braunfels and the surrounding Hill Country communities, Thayer Air Conditioning brings dependable heating and cooling solutions to homes and businesses that count on comfort year round. Our team handles everything from routine tune-ups and repairs to full system installations, always backed by honest recommendations and clear communication at every step. Whether it's a sudden breakdown in the middle of summer or a seasonal furnace check before winter sets in, our technicians bring the same level of care, precision, and respect for your home to every job. When you need comfort you can count on, we're the team ready to deliver it, day or night.

Heating

Trust Thayer Air Conditioning for reliable heat pump repairs that restore efficient performance and comfort to your home with minimal disruption and maximum care.

Cooling

Thayer Air Conditioning delivers prompt, precise AC repair services to keep your system running smoothly and your home comfortable, even in peak Texas heat.

Emergency Services

When your system fails unexpectedly, Thayer Air Conditioning offers fast, dependable emergency HVAC repairs to restore your comfort—day or night, any season.

Professional HVAC Company in New Braunfels, TX for Homes & Businesses

As a professional HVAC company in New Braunfels, TX, Thayer keeps homes and businesses comfortable through every season with dependable heating and cooling services built around quality and long-term value.

From fast AC repair, compressor and capacitor replacements, full system installations, AC maintenance, and tune-ups to furnace repair & replacement, heat pump services, and emergency HVAC repair, our team handles comfort problems the right way.

We also provide indoor air quality solutions, ductwork installation, thermostat upgrades, and ductless mini split installations for residential and commercial HVAC systems. With clean installs, accurate diagnostics, honest recommendations, and strong guarantees, we deliver HVAC solutions made to last.

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Experience the Thayer Difference with Our HVAC Services

We are a family owned New Braunfels HVAC company built on trust, consistency, and doing right by our neighbors. Our reputation comes from showing up prepared, communicating clearly, and standing behind our work long after the job is done. Homeowners choose us because they want a go to HVAC partner, not a revolving door of technicians or sales pressure.

What sets us apart

We believe comfort should feel simple and confident. When you call us, you know exactly who you are getting and why it is done right the first time.

Experience the Thayer Difference

Striving for 5-Star Service – Every Time!

Honesty

Transparent solutions for your peace of mind.

Quality

Transparent solutions for your peace of mind.

Service

Transparent solutions for your peace of mind.

Timeliness

Efficient solutions delivered on your schedule.

Thayer Comfort Membership

Whole Home Coverage –
$199/yearly or $16.99/Month
Why Homeowners Enroll?
$49 Service Call — Every Visit

Members never pay the standard $99 diagnostic fee.

Priority Service Scheduling

Front-of-line scheduling during peak demand.

After-Hours Dispatch Fee Waived

No emergency dispatch fees for members.

Extended 2-Year Repair Warranty

Added protection on qualifying repairs longer for peace of mind.

Two Annual Performance & Safety Inspections

Professional inspections to help maintain efficiency and reduce breakdown risk.

Member Loyalty Upgrade Credit

Earn $100 per active year (up to $500) toward future system upgrades or IAQ improvements.

What Your Neighbors Are Saying About Us

Jessica B.
I can’t say enough good things about Thayer AC. From the first call, they were responsive and professional. They came out quickly, took the time to explain what was going on, and were incredibly honest about what did and didn’t need to be fixed. No pressure — just straightforward, trustworthy service. It’s rare to find that these days. You won’t regret calling them. I am so thankful I did. I honestly feel like I would’ve spent so much more calling anyone else. Highly recommend!!
Virginia S
I am very pleased with Angel for getting my unit back up and running. I appreciated that he was patient with me in answering all my questions and addressing my concerns. He was also very thorough in his inspection of the unit and seemed very knowledgeable about what he was doing. I understood exactly what was wrong with my HVAC and learned how to prevent this situation from happening to my unit in the future. Thank you, Angel!
Karen T.
We've been using Thayer for about a year and they are much better than the previous company we used. We just had the whole system replaced and are very happy with it. Vincent always arrives with a smile on his face. He is very friendly, professional and courteous. Highly recommend.
Sean L.
We have been using Thayer for a few years now and have been impressed with their responsiveness and professionalism. We just recently had Vincent out to do our semi-annual checkup and he was professional and thorough in the process and gave our system a clean bill of health. It is nice to have a trusted company to help with the maintenance and upkeep of our HVAC system.
Julianna C.
Thayer has been awesome! Vincent has been incredibly kind and helpful in my interactions with him. Explaining things well and answering all my questions. He works hard to get things sorted out for us quickly!
Joseph W.
My AC went out at the very start of summer. I called Thayer and they immediately came out and were able to put in a new unit the same day! Exceptional service, great professionalism, and easy to work with. Highly recommended!
Michael
Tech Angel was on-time, professional and courteous! He spent time explaining the service and answered all my questions. Service was completed quickly and efficiently and he made suggestions on additional service items to prolong the life of my HVAC system. I would recommend Thayer AC for all your HVAC needs!
Ed S.
Office staff and technicians were very professional and friendly. The technician Gavin was knowledgeable and was able to explain the repairs and service. He took photos and answered all my questions. I will continue to use Thayer AC service and I appreciate Gavin’s polite and efficient work. I will recommend Thayer AC and Gavin to others.
Anne S.
Vincent is prompt, knowledgeable and an all around great service tech and has been for the last 3 years. We trust his expertise and hope he continues to be our service tech indefinitely. We would recommend him to anyone looking for HVAC services or maintenance.
Priscilla V.
Amazing Service! Very respectful staff. I have been with another AC company for over 10 years and was hesitant to try someone new, SO Thankful I did! Thayer AC company in New Braunfels, I would HIGHLY recommend their services! Very Honest Technicians and so helpful too.

Our Most Popular Blog Posts

5 Simple Ways Timberwood Park, TX Families Can Improve Indoor Air Quality

In Timberwood Park, TX, families can improve indoor air quality by controlling humidity, using better filters, keeping the HVAC system properly maintained, improving ventilation, and adding houseplants to living spaces. Humidity control comes first, because damp indoor air feeds mold and dust mites. Filtration and maintenance come next, since your HVAC system moves nearly all of the air in your home and decides what rides along with it. Each of these steps is manageable, and together they change how the air in a Timberwood Park home actually feels. Why Does Indoor Air Quality Matter in Timberwood Park Homes? Indoor air quality affects your family’s health and comfort every hour you spend at home. Air that carries dust, mold spores, pet dander, and volatile organic compounds from cleaning products and finishes can trigger allergies, aggravate asthma, and leave people feeling worn down without an obvious cause. Homes in Timberwood Park have

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How Air Duct Sealing Lowers Cooling Bills for Stone Oak, TX Homeowners

Sealing your air ducts lowers cooling bills because air that escapes through leaks never reaches your rooms, which forces your air conditioner to run longer to hit the same thermostat setting. In Stone Oak, TX, where much of the duct run sits in a hot attic above a two-story home, that lost air is expensive air. Sealing the joints, seams, and connections keeps conditioned air inside the system, evens out temperatures between floors, and reduces the dust and attic air that gets pulled into your living space. Thayer Air Conditioning inspects, seals, and repairs ductwork for Stone Oak homes so your equipment cools the house instead of the attic. How to Tell If Your Home Needs Air Duct Sealing? The clearest sign is a house that cannot hold an even temperature, no matter how you set the thermostat. Rooms at the far end of a duct run, especially upstairs bedrooms,

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Beating Texas Humidity: A Whole-House Dehumidifier Guide for North San Antonio, TX

A whole-house dehumidifier is a unit that ties into your existing HVAC system, pulls moisture out of the air, and circulates drier air through every room instead of one. In North San Antonio, TX, where the cooling season runs long and outdoor humidity stays high for months, that moisture control is what makes a house feel genuinely comfortable rather than cool and clammy. The two things that decide whether it works well are correct sizing for your square footage and consistent maintenance after installation. Thayer Air Conditioning sizes, installs, and services whole-house dehumidifiers for North San Antonio homes so you get steady comfort without asking your air conditioner to do a job it was never built for. Why Does Texas Humidity Cause Problems in North San Antonio Homes? High humidity damages your home and your comfort at the same time, because moisture that has nowhere to go settles into the

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