Rely on A-1 Heating & Air Conditioning Services to provide solutions for all of your home and business indoor comfort needs.

Our Services

service membership

Trust A-1 to provide the best services for your heating & air conditioning needs. Let us show you what we can do to help keep you comfortable.

Air Conditioning

HVAC

Whether it is commercial or residential,
A-1 can install and service your new conditioner with no hassle. Learn how we can help you today.

Maintenance Plan

Ask about our energy savings memberships! We have Residential & Commercial programs—choose whichever is most applicable to you.

“Affordable Comfort You Can Count On!”

A-1 Heating and Air Conditioning Services, located in Greeley, CO, is a full service HVAC company serving Northern Colorado since 1969. We offer residential and commercial services and provide remodels, complete service, and repair. Mobile modular homes are included. Our factory trained technicians are NATE certified and dedicated to each and every job.

Our services include the following:

Furnace installation, maintenance, & repair
Air conditioning installation, maintenance, & repair
Remodeling as necessary for installation and service
Parts and support for do-it-yourselfers
Boiler maintenance & repair
Ventilation maintenance & repair
Fireplace maintenance & repair
HVAC contracting
Duct Cleaning
Residential hot water heater replacement

Are you tired of searching for a solution to your allergies and asthma problems? A-1 can give you tips to help with allergies, asthma, and other respiratory illnesses. Call for a free in home inspection.

Servicing All of Greeley & Surrounding Areas

We provide 24-hour service for your convenience.

Call A-1 Heating and Air Conditioning Services today for all of your indoor comfort needs.

Google Review Button

Angies List Review Button

Request A Quote

Testimonials

When I called to get a quote, the lady who answered the phone was very respectful and answered all of my questions. A young gentleman came out and gave me a quote for a new furnace and A/C. He was very knowledgeable and very honest. The quote I received was not the cheapest, but very reasonable. I went with A-1 for my install and they did a beautiful job and my system works great. I would recommend A-1 for any of your cooling and heating needs.

-Kenzie
Testimonials

Slade has been our furnace repair man for the past several years. My husband and I could not be more pleased. He ALWAYS comes immediately when we call –even giving us his cell number in case we had a problem after a particularly large repair. He knows us and our family and is always very professional and efficient. He always spends time trying to explain the repairs that are needed and we have never had to wait for repairs to be performed. On this particular occasion, he upgraded the unit he repaired but actually found us a discounted part saving us a few hundred dollars. Slade has never disappointed us!

-Google User
Testimonials

Wonderful customer service! Communication is always timely and professional. We’ve had our AC and our furnace checked out annually by A-1 for many years. Usually, A-1 contacts us before we need to call them, to schedule the annual maintenance checks. This is much appreciated in our busy world! Being proactive is always a huge plus! Better the problems that never occur due to careful maintenance than the ones needed due to sluggish maintenance. Thank you A-1 for your top notch customer service and professionalism.

-Mary
Testimonials

I have a rental AC that stopped working and another with a pretty old furnace I needed inspected to make sure it worked, was clean and was safe at its age.

The tech name was Aaron. He communicated well and called me 30 minutes before he arrived. Worked well with my renters and kept them informed of any findings. Called me when the work was done to let me know causes, issues and reports of the work. Work was done in a timely manner. Cost wise falls in the middle not the cheapest not the most expensive either. Will go to again in the future for any HVAC needs. Favorite part is excellent communication which is great when I can not be on site to meet someone.

-David W.
Testimonials

Fantastic job installing our new furnace and A/C units. They were quick to come out when we found out the furnace gave up and quickly diagnosed the problem. Recognizing the age of the furnace, they gave us options and things to consider. They did not pressure us one way or another, but allowed us to make our own decision. After reviewing our options we decided a new system would probably pay for itself and decided to go new. The showed up the next day, professional, courteous and set up our home putting down protection for our hard wood floors, tile floors and carpeting. The crew worked quickly and efficiently. Between the guys that showed up and the owner working with them, they were able to complete replacing both the furnace and A/C unit, show us how to operate everything and told us to call if we had any questions or concerns. Considering the cost of replacing both, we were so happy with the result and a warm home. Looking forward to seeing how the A/C does this summer too. If you need any service work done on your heating or Air Conditioning unit, I would highly recommend A1 Heating & Air in Greeley!!

-Scott H.
Testimonials

A1 did an excellent job on our furnace and ac replacement after our old unit failed. The new unit also seems to be keeping the temp better regulated and the filter already looks filthy indicating it is doing its job unlike the last setup. I really appreciate everyone that works here and what they do!

Jonathan W.

A1 Heating & Air Conditioning Services, Inc.

107 N 23rd Ave
Greeley, Colorado 80631
(970) 352-3500

Images provided on this website are for personal, non-commercial use. Republication, retransmission, or reproduction of such images is strictly prohibited.