Emergency HVAC Services Available

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:

Work with Best

Lennox Premier Dealer

All Lennox® Dealers are expert VAC professionals trained to take care of any comfort issue you may have. Lennox Premier Dealers are the best of the best.

Our Services

HVAC Services

Our expert team at A1 Heating and Air Conditioning Service knows how to inspect, diagnose, and repair HVAC systems.  If your ac needs repair, our team will take care of things efficiently to get things running smoothly in no time.

Commercial HVAC

Get the heating and air conditioning solutions you need, to keep your business comfortable year-round. A-1 Heating and Air Conditioning Services is your partner in efficient, quality, HVAC service.

Indoor Air Quality

Introducing our most advanced whole-house air treatment system yet. APCO-X is the result of ten years of APCO development. It will revolutionize indoor air quality with significantly improved performance, functionality, and reliability.

Maintenance Plan

Get regular expert maintenance on your heating and air conditioning system in Weld County. Ensure that your HVAC system is ready to take on any extreme weather conditions.

As your living spaces continue to evolve, so do we.

Innovative HVAC Services in Northern Colorado

For many Americans over the last few years, ‘home’ has become so much more than just a home. Now the roof over your head means office space, 5-star restaurants, classrooms, even the destination of your next staycation. And at the very center of it all is our specialty: home comfort systems. We’re passionate about improving the quality of living in the space you spend the very most of your time. Whether it’s for work, play, or simply everyday life, we use innovative technology to make those ever-evolving rooms feel like home.

Do you need a repair or installation on your heating, air conditioning, or air quality improvement systems? Give us a call. Once we’re done, you’ll never want to leave your home again.

Premium HVAC Solutions for Any Environment:

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:

Jeff Schreiner
Jeff Schreiner
2022-07-14
Our AC went out and Robbie was able to come out same-day and diagnose the issue. He was really thorough and explained everything. Sadly the manufacturer dropped the ball on the order, but A-1 was very transparent and got it taken care of. Once the part came in, Robbie was back out promptly, made the repair, and our AC is back to fighting these record-breaking temps.
Kent Evers
Kent Evers
2022-07-13
A-1 did a great job installing a/c on the house . They did a great job !!!!
Lee Ann Lovelace
Lee Ann Lovelace
2022-07-02
I cannot say enough about the excellent service this company has!!! They are responsive and kind, not trying to just make money off of you. Thomas and Ronnie, are 2 very sweet techs that have serviced my AC. What a great business model!!!
Kendrick Bowlin
Kendrick Bowlin
2022-06-27
The service was beyond what I was expecting. There were no hidden fee's or charges when I got my invoice. The issue was diagnosed and fixed in no time. I highly recommend this company -based on my experience-
Doug Measner
Doug Measner
2022-06-24
The best in town. I use them for all my apt buildings. Quick to get out. Quick to get em fixed. Reasonable prices.
Fisher Landscaping
Fisher Landscaping
2022-06-22
Aaron has been great to work with! Thank you for the Quick response time and very professional. Thank you A-1 Heating!
Meghan vernier
Meghan vernier
2022-06-13
I would give them 10 stars if I could! We had other contractors come in and tell us we needed a whole new ac unit for $5k-$20k when our ac stopped working. A1 literally saved us thousands of dollars by fixing our ac unit and being honest about what was wrong. They are now our go to HVAC people!

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.