• Couple drinking coffee on a couch
  • At A-1, our team of professionals want you to feel comfortable in your home or business by providing expert service and top quality heating and air conditioning products.

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

Our Services

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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.



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

Comfort Savings

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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, LLC, 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 highly 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
  • Duct Cleaning
  • Remodeling as necessary for installation and serviceclogo_web_262x106
  • Parts and support for do-it-yourselfers
  • Boiler maintenance & repair
  • Ventilation maintenance & repair
  • Fireplace maintenance & repair
  • HVAC contracting

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

Servicing All of Weld County & Loveland

We are confident in the quality of our repairs. We give a lifetime labor warranty on all parts that we replace. If a part ever fails, we will replace it at no cost to you. We provide 24-hour service for your convenience.

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

A1 Heating & Air Conditioning Services, Inc.

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