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Your Trusted Residential HVAC Contractor in Greeley CO

Daikin Furnaces Installation, Repair & Maintenance Services

Because heating and cooling systems are a major investment, you want to make sure your service provider has the proper credentials. You can count on us for all your HVAC services, from furnace repair to complete system replacements. A to Z Heating & Cooling has served residents in Eaton, Evans, Fort Collins, Greeley, Loveland, Windsor, CO, and the surrounding areas since 2011. We’re a Daikin Comfort Pro and Ductless Design Pro and our service technicians are fully licensed and NATE-certified. 

Our Services

Colorado has a wonderfully diverse climate, from our sunny summers to our snowy winters. But whatever the season may be, we’ve got your heating and air conditioning service needs covered from A to Z. Our team delivers exceptional HVAC experiences, whether that is a professional furnace repair or any one of our air conditioning services. We offer practical, effective, and affordable indoor comfort solutions for local residents in Greeley, Fort Collins, CO and nearby areas. We’ll even match a competitor’s price on an equivalent system. All you need is a formal written proposal.

Heating Services

When cold weather sets in, you want to know you can rely on your heating system. A to Z Heating & Cooling excels at new heater installations, heating repair, and maintenance. Our furnace repairs include an inspection of the unit to make sure it is safe to operate. If a furnace repair can’t be made, we install high-quality systems from Daikin, including energy-efficient furnaces that save hundreds of dollars annually on utilities. We also offer annual maintenance contracts that include cleaning and calibrating your heating system before first use each year. If your heater is nearing the end of its lifespan, contact our friendly staff for a free estimate on a furnace replacement.

Ductless Services

If you live in an older home without a ducted HVAC system, ductless air conditioners and heat pumps solve the problem. They are also used to heat and cool add-ons, attic spaces, or rooms with uneven temperatures. Ductless installations offer flexibility, energy savings, and convenience.

Happy Families, Happy Homes: HVAC Solutions That Matter

Air Conditioning Services

At A to Z Heating & Cooling, we install, repair, and maintain a variety air conditioning systems, including heat pumps and traditional split AC units. We make sure your air conditioning equipment operates efficiently and reliably to keep you comfortable. Our NATE-certified technicians use industry standards to calculate load on new installations to ensure that systems are properly sized for both temperature and humidity control. We respond promptly to calls for air conditioning repairs to get your equipment operating as quickly as possible. When it’s time for an AC replacement, get in touch with our experts for a free estimate.

Indoor Air Quality Services

If your home suffers from poor indoor air quality, A to Z Heating & Cooling will listen to your concerns and recommend ways to improve ventilation and remove pollutants. We install quality air cleaners, filters, humidifiers, and ventilation systems that work with your HVAC equipment.

Our Guarantees

Our Promise: A 100% Customer Satisfaction Guarantee

100% Customer Satisfaction Guarantee

If you’re unhappy with any job we install, we will remove the equipment and refund your money within the first year.
Fair Pricing, No Surprises: A to Z Heating & Cooling's Promise

No Surprise Guarantee

The price we quote is the price you pay when the job is complete. No hidden charges.
Competitive Pricing Assurance: Our Price Match Guarantee

Price Match Guarantee

We will match a competitor’s price as long as it’s of “like” equipment, and on a formal proposal.


+As a Daikin Comfort Pro, you can count on our technicians for all your residential HVAC service needs. Although we offer Daikin systems, we service multiple makes and models of equipment. Give us a call today to learn more about our services or to schedule an appointment.

Expert AC Repair Technician in Greeley, CO

Why Choose Us

24/7 Emergency Service

100% Satisfaction Guaranteed

No After-Hours Rates

Over 40 Years of Experience


Licensed, Bonded, and Insured

NATE-Certified Technicians

Today, the air is perfect.

Perfect temperature. Perfect humidity. Perfectly clean and fresh, like just after a rainstorm. And the only thing more perfect than this outdoor scenario is that it’s all happening inside. Because that’s where we work. That’s where we play, where we sleep, where we truly live.

And that’s why at Daikin, we aim to make the air inside as refreshing as the outside. Better comfort. Better control and efficiency. Better quality. So you can create your own unique ecosystem. And everyday is perfect.

Inside and out.

Flexible. Innovative. Technology. Quiet. Space-Saving. Efficient.

Read Our Latest Google Reviews

  • Derek installed and has maintained our new furnace and AC. I have always appreciated his friendly and knowledgeable service. They are also affordable. He was here again today and I appreciated the goo... Read More
  • Anthony and Derek were wonderful from the start. They took the time to explain the different systems and which would work best for our house. They gave us a date of installation and the entire unit wa... Read More
  • Luke did an excellent job at diagnosing and repairing my heater. He came with such a great attitude as it was an emergency service late in the evening, I have to say he was very friendly and profess... Read More
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