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We install, maintain, service, and repair a wide variety of residential and commercial HVAC equipment. Is your heating system acting up, blowing cold air, or making too much noise? Don’t get left in the cold! Our experienced team of professionals is here to keep your home or business warm, comfortable, and safe.


Horsetooth Heating and Air is the leading company for all of your air conditioning and cooling needs. We install, maintain, service, and repair a wide variety of residential and commercial HVAC equipment. Our technicians are qualified professionals who will get the job done right for your home or business.


At Horsetooth Heating and Air, we have the equipment and expertise to ensure your home is properly ventilated and comfortable throughout the year. Breathe easy—and count on Horsetooth for your indoor air quality diagnosis and solutions.

We are a locally-operated HVAC company with highly-trained and certified contractors ready to respond to any request for heating or air conditioning repair, replacement, or maintenance service, including furnaces, air conditions, boilers, rooftop units, and anything else that heats or cools. We specialize in Rheem products and guarantee the best quality every time. We are based out of Fort Collins, CO, but happily travel the beautiful front range to perform services.

Have a question about your AC or heating system? Feel free to call us or fill out our Request Service form below. We’re happy to answer any and all of your questions and promise to do so in a timely manner. We strive to be professional, yet approachable, in everything we do.


“Absolutely painless install of an entire new AC/Furnace/Compressor system. From Taylor recommending it wasn't worth fixing my old one, to Jay coming out and walking through all the options and services, to Corey installing it, the entire process was smooth, not rushed and no pressure!! The team at Horsetooth had the install scheduled within 3 days, and right before the heat. I couldn't be happier working with this team. They are all simply amazing. If you're in need of maintenance or a new system, let Horsetooth take care of you, you won't be disappointed!”

- Mary C.


We have a number of different options that we can tailor to best fit your heating and cooling needs. Speak with one of our experienced sales representatives today to learn more about our rental and financing options. No matter what your needs, we will find a way to meet or exceed them!


Horsetooth Heating and Air is your trusted source for everything Lennox and beyond. When it comes to air conditioning and heating repairs, Fort Collins residents can count on Horsetooth to repair all models and brands of air conditioners, furnaces, and heat pumps. Our experience and expertise mean we’ll quickly resolve your problem. As a family owned business, we understand the importance of family and our commitment to our community.

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3 Signs It’s Time for a New AC. HVAC unnits.

3 Signs It’s Time for a New AC

Should you repair or replace? That’s always the big question when it comes to major home systems like air conditioning (AC). Below are 3 signs it’s time for a new AC.

3 Tips to Getting the Most From Your HVAC Warranty. Image is a photograph of a man taking a photo of the inside of an air conditioning unit on his smart phone.

3 Tips to Getting the Most From Your HVAC Warranty

An HVAC warranty offers you a valuable safety net for servicing and repairing the heating and cooling equipment in your Fort Collins, Loveland, and Greenley, CO, home.

Sick little schoolgirl coughs and blows nose wiping with white paper napkin.

What Does Indoor Air Quality Have to Do With Allergies?

Our team at Horsetooth Heating and Air wants to help keep your home’s indoor air quality high and you and your family healthy and comfortable.



Amana Heating & Air Conditioning. American Standard Heating & Air Conditioning. Ameristar by American Standard Heating & Air. Armstrong Air. Bryant Heating & Cooling Systems. Carrier. Coleman Heating & Air Conditioning. Comfortmaker. Daikin. Day & Night Heating & Cooling Products. Fujitsu. Goodman Air Conditioning & Heating. Heil. Lennox. Mitsubishi. Payne. Rheem. RunTru by Trane. Ruud. Trane. Westinghouse. York.


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