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It’s About Quality of Life

As Denver's leading HVAC specialists and geothermal system experts,
we believe in doing things right!

Denver HVAC Company

Major Heating & AC: Trusted Comfort Since 1970

 

Commercial

With 40+ years of experience, we are the only Commercial HVAC Specialists with the Major Service System™ that customizes solutions to your facility.

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Residential

Our Home Comfort Specialists with the Major Service System™ customize residential heating and cooling solutions to fit your unique Colorado lifestyle.

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2025 XCEL Residentail Rebates

  • Non-Cold Climate ASHP: $900/Cooling Ton
  • Cold Climate ASHP: $2,150/Heating Ton
  • Ground Source Heat Pump: $3,300/Heating Ton
  • Heat Pump Water Heater: $2,250
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Major Heating & AC: Trusted Comfort Since 1970

We Believe in Doing the Job Right!

Since 1970, Major Heating and Air Conditioning has been providing quality heating and air conditioning to Colorado’s residents and facility managers. And today, we also provide renewable Geothermal for both residential and commercial projects.

We are the go-to Denver HVAC company for both residential and commercial heating and cooling services. We strive to provide our customers with the highest quality HVAC service and products at an exceptional value.

Our technicians are proficient in up-to-date system installation and service techniques. We take great pride in providing the Denver metro area with quality installations of new equipment and servicing existing heating and cooling systems.

We specialize in everything that heats, cools, or looks like it does! We are proud members of the Better Business Bureau, with an A+ rating since 1983.

 

Our Denver HVAC Company at a Glance

  • A + Rating with the BBB
  • Premier heating and air conditioning installation and servicing
  • Free estimates on new equipment
  • Customized maintenance plans
  • 24-hour Emergency service
  • EPA, LEED, and NATE certified technicians
  • Over 40 years of industry experience

As one of the most trusted HVAC companies in Denver, we believe in building long-term relationships with our customers. Therefore, we will not just sell you a furnace to sell you a furnace. Nor will we provide you with any old air conditioning system or push unnecessary repairs on you.

That is why we are the only Denver HVAC company with Home Comfort Specialists and the Major Service SystemTM. When our friendly and polite Home Comfort Technician comes to your home they will get to know what your needs are, how you like your environment, see where there are hot and cold spots, discuss your indoor air quality concerns and then provide a customized solution that is just right for you and your budget with our flexible financing options.

All of our NATE-certified Specialists are highly trained and enjoy their profession. They arrive ready to answer questions and prepared to solve any problems you may have.

When you choose the Major Service System™, you can be confident you are receiving the best, most honest HVAC service from Colorado’s most recognized industry experts.

Denver HVAC Services:

  • Furnace Repair – When your furnace needs repair, trust the experts with more than 40 years of experience to get your furnace repair completed with prompt and friendly service
  • Furnace Replacement – When it comes to furnace replacement, our team will help by providing you with the right options for your comfort needs as well as options to fit your buget
  • Air Conditioning Repair – With air conditioning repair, our team will get right to problem and provide the right repair options to get your AC going
  • Air Conditioning Installation – For air conditioniong installation, our team of home comfort technicians will provide the right, high efficiency air conditioning replacement to fit your needs and budget
  • Commercial HVAC Services – We are Denver’s go-to team for commercial HVAC, including commercial HVAC systems, design, building controls and building automation
  • Boiler Replacement– Our firs jobs, over 40 years ago, was with complex boiler systems and replacement
  • Swamp Coolers – Swamp coolers are a great alternative to traditional air conditioning systems and are a great choice in Colorado where there is low humidity to deliver comfort

Plus, our Home Comfort Technicians will inform you of any current rebates and specials to better accommodate your budget, as well as multiple options for any HVAC repair.

When it comes to preventive maintenance our Home Comfort Assurance ProgramTM can help you save money over the lifetime of your comfort system. Our annual preventive maintenance program will help keep your systems running efficiently and prevent costly and unexpected breakdowns.

If you are looking to build that new dream home or are remodeling, we also provide consulting and system design/build. And, if you desire a renewable energy solution that provides 24/7/365 free energy, you can consider our Geothermal heating solutions.

Major is a fully licensed and insured Denver HVAC companyOur team of Home Comfort Specialists is one of the most diverse group of HVAC professionals in Colorado providing “best in class” service for you and your family!

 

Our Denver HVAC Company At a Glance

What our Clients Have to Say

”Earned 5 Stars!“

We called another plumbing & heating company originally, but they couldn’t come out the same day. My father-in-law recommended Major heating since they were local, and he had used them before. I had to pay the higher weekend rate, but it was worth it. The service technician ‘Dan’ came out the same day and got the furnace running. We did run into a minor problem a couple of days later, but Dan came back out and charged us only for the part. I only post reviews when the service is exceptionally good or exceptionally bad. Major earned their 5 stars this time!

Brock M.
Denver

”Absolutely amazing service!“

Absolutely amazing service. Our heater went out, they had somebody come immediately, fix furnace, and installed a new thermostat in no time.  I’m a renter, but my landlord said to pretty much blank-check the repair, and they were very honest, and did their best still to save us $$ on the repair at every turn.  They were done with everything within an hour. Would recommend to anybody!

Nam L.
Littleton, Colorado

”Friendly and Knowledgeable Service!“

Prompt, friendly and Knowledgeable! Major arrived within their promised time and took the time to understand what we were experiencing in the house. Cold upstairs while blazing hot in the basement in the winter. Hot upstairs and freezing in the basement in the summer. The Comfort Specialist provided different options to meet our needs (and budget) and was very knowledgeable about rebate options that were available to us. They even brought coloring books for the kids!

Doug G.
Highlands Ranch, CO

”Honest and Professional“

Straightforward advice, honest assessment, professional in approach, quick to respond, on time and on budget, quality work.

Mike H.

”Honesty and dedication to quality service“

Just had them out to service my A/C through a Groupon deal, and I couldn’t be happier (which is fare in the world of “home service Groupon deals” especially).  The technician (Treavor), was extremely professional and courteous, and took the time to explain everything about our A/C system in our home and let me follow him around asking questions the whole time.  He was very up front about the current condition of the system, the services needed, and even some basic maintenance tips I could do myself.  It is because of this honesty and dedication to quality service that I will absolutely be using them again in the future.

Brad W.
Arvada, CO

”Responsive and Respectful“

Great company! Very responsive! All the technicians are knowledgeable, courteous, and respectful. They treat your space like it was their own. They have been at our house on weekends and late at night, and have always provided great service with a positive attitude.

Donny P.
Denver

”This is one company that sticks to it mission statement!“

Major replaced my original townhouse heating and cooling system with Carrier products in early May 2014. Everyone I dealt with–from the estimator, to office personnel to the installers–was first rate. I learned a lot about heating and cooling from Major, as well. There were some minor issues that needed tweaking after my installation and Major was very responsive. They did whatever was required to remedy little problems. In fact, I felt that Major personnel went above and beyond in their responsiveness and diligence. This is one company that sticks to it mission statement. If you want quality products and a job done right, with respect, choose Major!

B Long
Lakewood, Colorado

”Trustworthy!“

Great family, running a great company. Very trustworthy.

Clint N.

”Their values are aligned with our values“

MKK enjoys working with Major because of many reasons, but I think the most important reason is because their values are aligned with our values. The number one priority is to “Do the Right Thing.” Major is always looking out for the best interests of the client!

Craig Watts
LEED AP, Principal at MKK Engineering

Very Knowledgeable

Nick diagnosed my boiler system problem immediately, fixed it and my heat was back a few hours later. He is very knowledgeable and an asset to the company, I appreciate people who try to do their jobs well and have a good attitude about it!

ReJean Peeples
furnace maintenance
common heating issues during winter

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