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Littleton Heating & Air Conditioning Guaranteed Air Conditioning Services Including Repair & Installation in Littleton, Centennial, Lone Tree, CO and Surrounding areas. Do you want to take your home comfort to the next level without paying sky-high energy bills? Littleton Heating & Air Conditioning is here to guide you through the process. We offer all the heating, ventilation and air conditioning services you need to create a comfortable indoor atmosphere for your loved ones. Whether you need an AC repair or a furnace installation, rest assured we'll complete the job to a high standard.
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Providing Quality AC Repair, Heating Repair and Maintenance Services to Littleton, Centennial, Lone Tree, CO and Surrounding areas. Do you need an air conditioner installation or a heater repair? Littleton Heating & Air Conditioning can handle the job if you reside in Centennial, Ken Caryl, Littleton, Lone Tree, Highlands Ranch, Greenwood Village or the surrounding areas in Colorado.
Dependable HVAC Services Including Heating, Cooling and Maintenance in Littleton, Centennial, Lone Tree, CO and Surrounding Areas. Are you tired of dealing with companies that promise one thing and do another? Founded in 1972, our decades of service are proof that customers know that they can trust us when we visit their home or business for an HVAC installation or repair.
High-Quality AC Services Including Repair and Installation in Littleton, Centennial, Lone Tree, CO and Surrounding Areas. Your home requires some type of cooling system to keep it comfortable when the outside temperature in Littleton, CO, is scorching. The NATE-certified service technicians at Littleton Heating & Air Conditioning specialize in the installation of central air conditioners, ductless mini-splits and heat pumps. If your current cooling system isn't operating as it should, we can repair or maintain it quickly and effectively.
Top Quality AC Repair Services in Littleton, Centennial, Lone Tree, CO and Surrounding Areas. One of the most cherished appliances in your home is your air conditioner. That's because life without an efficient AC system would be miserable. Can you imagine spending the summer months in a hot and stuffy home because air conditioning doesn't exist?
Reviews (16)
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Naiyi Hu
May 23, 2022
After talking to several A/C contractors, I decided to choose Littleton Heating & Air Conditioning. Their price was really good and they did a very professional job. They were also very careful not to get dirt on my carpet as they were working. I am very glad that I choose them to install the A/C system for me. Services: A/C system maintenance, Install AC, Install thermostat, Installation, Thermostat installation, Heating system installation
David Disney
May 01, 2022
Littleton Heating and Air Conditioning has been a terrific company for us over the many years we have used them. Excellent service, Professional work. Very knowledgable. Good response time and friendly service, in office and in the field. Derek installed a new Daiken Fit furnace and air conditioner unit for us in April of 2019. We have been nothing but pleased with the new system.

I set it on automatic with a 10 degree gap, and rarely ever have to touch the thermostat. There is circulating air from time to time and then when the furnace or air conditioner turns on, we rarely notice it, as the transition is quiet and smooth. We have lived here for 68 years and this system is the best we have ever had.
Joseph Schenck
Mar 08, 2022
Littleton Heating and Air went above and beyond our expectations! We decided to upgrade our 13 year old furnace and A/C for our two story home as we were finding the upstairs was hard to make comfortable. Derek recommended we go with a Daikin heat pump to manage our complaints and have a furnace as backup heat for the really cold winter days. We scheduled our install and we had our full system up in two days!

Everyone on the job was really professional, knowledgeable, and helpful throughout the whole process. We were kept informed of everything going on and provided with all the information we'd need for our system. Along with the new system, they adjusted our airflow to be better balanced. Derek's recommendation did not disappoint and our home has been the most comfortable it has ever been. The system constantly moves the air around at a very low speed and helps remove all of the cold spots we used to have upstairs. Highly recommend anyone to go with them!
Susan Christensen
Jan 21, 2022
Derek was awesome. Wonderful service performed on a timely manner. Didn't have the part but went out of their way to get it. Many thanks! Will always recommend Littleton Heating and Air. Service: Install thermostat
Lyle Breathwaite
Jan 11, 2022
Littleton Heating & Air Conditioning sold me what we needed not over selling. They are very knowledgeable and care to do the right thing not just put in like kind. They take time to get the install in the best way. They also took the time to solve some of my air handling problems. Very trustworthy and helpful company & people Services: Install AC, Heating system installation
Michael Paschky
Oct 12, 2021
I have used them several times over the course of 40 years and have always been extremely satisfied with their work and work ethic. After moving from my house to a new condo my ac unit at the new condo was not working right and it was under warranty the company that installed the ac unit sent out 3 different teams at 3 different times to fix the ac unit, they did not succeed, when they told me they would no longer try to fix it i called littleton heating and they fixed it in one attempt
Chad Cassidy
Oct 05, 2021
We recently bought a new home and the A/C Unit went out. Derek came out and provided a review of all our options, without being pushy at all. He was professional, knowledgeable and courteous. We decided to replace our entire HVAC system with new duct work and vents. The team did a great job and were incredibly efficient and respectful along the way. Would highly recommend to use again!
Rebekah Hiett
Sep 30, 2021
Review from my mother Susan Hiett: This company installed by heater two years ago and Derek was extremely helpful, knowledgeable, and professional. He has since been back every year to check that the heater is running efficiently and has always been helpful and friendly. I have recommended this company to several of my friends and family.
Beck Jonson
Aug 20, 2021
The folks at Littleton Heating & Air Conditioning were awesome. I was dreading having to deal with an HVAC contractor to replace our 40+ year furnace and do an AC install but instead I was pleasantly surprised. We were treated like family instead of being treated like just another job. I got two other quotes that were cheaper, but we made the right choice by going with Littleton H&AC. Attention to detail, and customer service that was on point. They made suggestions during their quote that the three other estimators never brought up.
David Merz
Aug 10, 2021
I did a lot of research and was convinced by Littleton Heating in order to maximize performance I needed to go with a smaller ton, more efficient unit for my duct work/sq footage. The guys came in and created custom duct work and gas line solutions. It can not be underestimated how valuable catching all your cool/hot air right away with angled/flawless new duct work. This is what they delivered. I'm pleased with my new system, huge upgrade. 5 stars.
Diana X.
Jul 30, 2021
Dereck Jackson was the first person available to come and he helped us right away. He is very honest and tried to give the best deal. He was able to find a part that was very hard to find and went out of his way to come after hours and fix our unit. We are so thankful of his dedication to the customer and diligent work ethic. I know when anything happens to my AC I know who I'm calling.
Nick S.
Apr 27, 2020
I contacted multiple companies but ended up choosing Littleton Heating and Air Conditioning to install my new furnace. Not only did they give me a great deal, but they were very quick to both obtain and install the new furnace! I asked them to do the work and it was done within two days of my request! Derek performed my install and seemed very knowledgeable.

He did a great job and was even able to stop by on short notice two weeks after the install to help me troubleshoot (successfully!) some thermostat settings I had issues with. I plan to give my business to this company again and will be contacting them soon for additional work cleaning my ducts!
Elliott P.
Dec 20, 2019
I have allergies and asthma. I recently bought my house and when colder weather came in and we had to start using the furnace I started waking up everyday with asthma. I contacted a few companies about replacing the HVAC system and when Darek came out he suggested that I install a Reme Halo whole house air purification system in the mean time while I figure out the HVAC thing.

He also has been understanding about the fact that I just bought a house and explained to me how to DIY install it to save me some money. Two days after I installed it my asthma went away! Still in talks with Darek about upgrading the HVAC in my house but so far the support and consideration for my needs that I've received from these guys has been outstanding.
Tom D.
Oct 10, 2017
I have worked with this company over the years. They have provided good system support and now these guys provided a great new, nigh efficiency HVAC System, at a great competitive price. Their installation team, led by Steve S, worked with me to install the new system in a way that met my needs and preferences without sacrificing either operation or efficiency. The new system installation has been well done and system operation has been very effective.
Paul W.
Aug 18, 2015
I would like to thank Littleton Heating for everything they did for us. We were trying to sell my In-laws house and the furnace was a block on a couple of sales due to it not being certified. We had a couple of other companies come and look at it and they all said it needed to be replaced. Littleton Heating came and fixed the fan cleaned it out and were able to certify it for a lot less than replacement.

We are still in touch with the people that bought the house and it is still running strong 5 years later. Because of this I used them to do all of the HVAC work on my new brewery and not only were they done in time but it was under budget. I have a hard time believing the some ratings that they have received. They were not only professional about their work but it was a real nice experience working with them. I WILL use them on my own home when it is needed.
Briana G.
Jul 31, 2014
I would not recommend this company. Tech came out and said my fan motor was broken and it would be $1000 to replace. Had another tech come out and he said there was nothing wrong with my ac. He did a quick service and I was up and running for $50. That was the months ago and the ac is working great. Beware. It's very hard to find a trustworthy hvac company.