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A-1 Heating & Air Conditioning Services

Reliable Comfort Your Family can Count on

Reliable Comfort Your Family Can Count On

A-1 Heating & Air Conditioning

A-1 Heating and Air Conditioning is a residential and commercial heating and Air Conditioning business serving Weld County, Colorado. We partner with you to maintain your equipment, ensuring that you are consistently able to keep your home or business comfortable. No matter what your needs are, we offer a high level of professionalism and top notch customer service to ensure you get exactly what you’re looking for. At A-1 Heating and Air Conditioning Services, we always stand by our work.

What to Expect:

In Need of a Trusted HVAC Company for Your Heating & Air Conditioning Needs?

Learn more about our process for Residential & Commercial HVAC services so you know exactly what to expect when we show up.

What to Expect:

Residential HVAC Service

We recognize that there are many HVAC companies you can choose for your heating and air conditioning needs in Weld County, and it can sometimes feel overwhelming, when you don’t know what kind of service you will receive from an HVAC company.  Learn more about the experience you will have from A-1 when you partner with us for your Residential HVAC needs.

What to Expect:

Business HVAC Service

When selecting an HVAC company for your commercial business, you want a company that has the experience needed, to handle complex commercial HVAC issues. Our team has been servicing commercial buildings for their HVAC needs, for over 50 years.  Learn more about our commercial HVAC processes, so you can move forward with confidence when partnering with us. 

We Stand by Our Work

A-1 Heating and Air Conditioning Services is a residential and commercial HVAC company serving Weld County, Colorado. We partner with you to maintain your equipment, ensuring that you are consistently able to keep your home or business comfortable. No matter what your needs are, we offer a high level of professionalism and top notch customer service to ensure you get exactly what you’re looking for. At A-1 Heating and Air Conditioning Services, we always stand by our work. 

Coordinate a Seasonal Maintenance Plan for Your HVAC System

Maintaining your heating and air conditioning unit is key to ensure the health and longevity of your system. With our maintenance plan, you won’t have to worry about your system breaking down right when you need it the most. We’ll care for your unit, keeping it healthy and functioning as intended. Our maintenance plan includes:

Our Services

Air Conditioning

Commercial HVAC

Indoor Air Quality

Maintenance Plan

Want to know what your savings could be with a new system?

See Your Home Savings with a new HVAC Unit in Real Time

Find Your Perfect HVAC Unit

What our Customers are Saying:

Jonathan White
Jonathan White
2022-02-17
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! Update: at my new house I had them assist in putting ducting in the basement as I work towards finishing it. They were prompt and courteous and the work was excellent as always.
Misty Urban
Misty Urban
2022-02-15
Update 2/15/2022: I will continue to rave about this company! Super fast and friendly service! They ALWAYS find the problem and have been so kind and understanding every time! The Owners are wonderful and they do a fantastic job finding wonderful employees to represent their company! I still continue to ONLY use A-1 and recommend them any chance I can get. ............... A-1 has always been Fantastic to do business with. We got our central A/C system installed by them and they even came out to inspect it when things weren't working right. Turns out the issue was user error but they did such an amazing job of being patient with us to explain the issue, educating us on how to better care for our system, and even made sure the entire unit was updated and running smoothly before they left. They are fast in their responses and their 24 hour service is great highly recommend A-1. We won't use anyone else!
MollyKeith Carlisle
MollyKeith Carlisle
2022-02-08
I have used this business twice now to repair and tune my furnace. Both experiences have been exceptional. Both of the guys who came at the two different appointments were extremely courteous, very professional, knowledgeable, and timely. For both appointments I have had they were able to come to my home based on what worked best with my schedule and were very flexible. They arrived when they said they were going to and fixed everything that needed to be fixed without taking an entire afternoon. They explained things in a way that made me feel like I understood what was being worked on without feeling like I was being talked down to. I will continue using this company for all of my air conditioning and furnace tuneup and needs in the future!
L D
L D
2022-02-02
Aaron did such a super job for us and was so energetic and friendly. He quickly diagnosed the problem, fixed it and assured us that he would return if needed. I am sure he even saved us some money. He called ahead and arrived on time. Can't say enough about this young man and his work ethic.
Aaron Noyes
Aaron Noyes
2022-02-01
29 year old furnace went out in my rental property. A-1 Heating and Air promptly came to do a service call I wanted done and service tech Aaron informed me a new furnace was going to be needed. Got the new furnace seamlessly scheduled for replacement and promptly installed by tech Hunter,new furnace is quieter, more efficient then the old one A-1 installed 29 years ago. Very proffesional service !
Fisher Landscaping
Fisher Landscaping
2022-01-31
Aaron has been great to work with! Thank you for the Quick response time and very professional. Thank you A-1 Heating!

A Weld County HVAC Company You Can Trust

A well-working furnace and air conditioning system is essential for homes and businesses in Colorado. It’s important to build a long-lasting relationship with a proven company that you can depend on. A-1 Heating and Air Conditioning is locally owned and operated, with decades of experience and loyal clients, many of whom have been with us since the beginning. We build our reputation and clientele with high-quality, honest work, and proven results.

Send us your heating and air conditioning questions or to set up a time for our team to come out. 

Weld County Trusted HVAC Company

We serve clients across the region from our office in Greeley, CO. We are licensed, bonded, and insured.