Hours: We are open 24/7

Denver, CO | Colorado Springs, CO


Founded in 1972, Allied Heating & Air recognizes the unique demands of your lifestyle and indoor space.  Whether you’re updating an existing cooling system or starting from scratch, we factor in your requirements and expectations, answering with a customized design.  Our installation team is extensively trained, remains current with evolving technology, and has proven their knowledge through NATE-certification testing.  We handle projects both big and small with higher standards of quality and dedication, putting over thirty years of experience to work for you.  The result is quick turnaround, competitive pricing, and superior system reliability.  We deliver long-term comfort and satisfaction to our customers across Parker, CO & the surrounding Denver metropolitan area.

Air Conditioning Installation & Replacement

Allied Heating & Air offers a range of innovative options from Carrier.  We bring you proven options, state-of-the-art technology, and the cutting-edge innovations that enhance convenience and cost-savings, including ductless units.  We recommend only those cooling systems with established histories, and help you take advantage of maximum efficiency ratings, quieter sound levels, and precision control over your indoor environment.

Enjoy cool comfort with an A/C installation from Allied Heating & Air!

Trust the specialists from Allied Heating & Air to protect your best interests and deliver an end result you’ll be happy to live with.  Through exceptional products, meticulous sizing, and proper installation procedures, we take care of our customers across Parker, Greenwood Village, Castle Rock, Highlands Ranch, and Lone Tree, CO. Contact Allied Heating & Air for air conditioning installation, service, and repair and a job done right.

AC Replacement in Lone Tree, CO | Air Conditioning Installation Greenwood Village, CO

AC Installation & Air Conditioning Installation Castle Rock, CO, Highlands Ranch, CO, Greenwood Village, CO, Lone Tree, CO & Parker, CO

AC Replacement in Parker, CO | AC Installation Castle Rock, CO

Central Air Conditioning InstallationAC Replacement ∴ Parker, CO ∴ Greenwood Village, CO ∴ Castle Rock, CO

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Customer Reviews

Shannon H

In the fall, we had got a bid to move our air conditioner from our deck over to the side of our house, and it was almost $7000! There was no way we could afford to do that, so we resigned ourselves to talking over our loud air conditioner in the summer months. However, Allied came out to bid the project, and came in more than $5,000 less!

The guys were out yesterday, and I couldn’t be more pleased. They were to my house at the beginning of the time window (not waiting around for them to show up). The technicians were very knowledgeable, and checked in with me if they ran into any issues (there were a couple) before continuing. My air conditioner is running better than it ever has as they cleaned all the gunk out that had collected over the years, and now I can sit on my back deck and have a normal sound level conversation! I will use them again, and recommend anyone to do the same.

Brian S

I’ve used Allied for a number of my HVAC needs, from the yearly furnace tune up to a full scale blower motor replacement. The receptionist staff is always very friendly and doesn’t transfer you to three techs to answer your question.

The service guys have all been on time (or early, which is awesome) and are considerate about wiping their feet, not touching the walls and in their post-work cleaning. Never had so much as a scrap left on the floor.

Their prices are a bit high, but I’d rather pay for good work and good service.


If you need repair, new equipment, or just have questions, Allied is the go-to HVAC company in the Denver Metro. They are simply one of the good companies around who actually provides quality service. They are technically knowledgeable, helpful, and good at what they do.

If you are unsure or wavering, rest assured, they will help you out. I will definitely use them again!

Brenda T

I contacted Allied today because my furnace stopped working last night. I called the office at 8:00am and the front desk person was extremely friendly and told me that they were pretty busy but would try to get me in. She called back 10 minutes later and said that she moved some “non-emergency” calls around so she could get a tech to my house asap. The tech showed up 20 minutes later and fixed my problem. I would highly recommend this company for not only their speedy response but for actually caring about my family and doing everything they could to make sure we had heat!

William B

Very quick response, even on a weekend. Their work was very professional and honest. They covered my issue under warranty, even though the warranty had expired.

Terry Taggart

Jon did a wonderful job repairing our evaporative cooler. He diagnosed the problem, over nighted the part, and repaired our unit in record time. We greatly appreciated his honest assessment and reliable repair. We would definitely us Jon and Allied Heating and Air again.

Shannon H.

Allied came highly recommended from another company that couldn’t get to my house to fix my dead furnace on the coldest day of the year. Their call center folks were very pleasant and had a technician to my house within the hour. The tech was very knowledgeable and had my furnace up and running within 2 hrs. I will use them again.

Mike Stein

Awesome customer service and Ed was a great furnace technician. Answered all my questions and put me at ease. I would use Allied again and refer to friends.

AC Replacement

Central Air Conditioning Installation

Lone Tree, CO

Greenwood Village, CO

Castle Rock, CO

Parker, CO

Highlands Ranch, CO