Rated 3.07 / 5 from 54 reviews
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Altitude Comfort Heating & Air Located in Denver, CO we do more than just promise professional heating and air conditioning service and your complete satisfaction, we guarantee it - in writing! We back every furnace and air conditioner we install with written guarantees ensuring your satisfaction with our service, as well as the performance of your new heating and air conditioning system.

Why do we offer written guarantees when other Denver heating and air conditioning companies don't? It's simple, we want our customers to have complete peace of mind when they choose us to take care of the heating and air conditioning needs in their home.
Business details
  • Year established: 2013
Services
AC Tune Up
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Altitude Comfort provides a full range of Denver air conditioning tune up services, from annual A/C tune ups to more in-depth troubleshooting inspections if you think there might be a problem with your unit. The warm, dry Denver summers can put a lot of stress on your air conditioner, and an A/ C tune up will help keep your unit running at peak efficiency.
Air Conditioning Repair
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We're available 7 days a week when you need a company you can trust to repair your Denver air conditioning system. We offer same day and emergency air conditioning repair at no extra charge. All A/C repairs are backed by our 100% Satisfaction Guarantee. You can count on us to do the job right the first time.
Air Duct Cleaning
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Why do Denver homeowners trust Altitude Comfort to improve their indoor air quality? Because our state-of-the-art duct cleaning equipment and experienced technicians provide better results, and a better experience, compared to other Denver duct cleaning companies.
Furnace Replacement
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We've identified the 3 main questions that tend to make replacing your furnace a confusing experience, and we've created a solution to give our customers peace of mind throughout the entire process. If you think it's time to replace your furnace, and you want a hassle-free, no-pressure experience, you can count on us.
Furnace Repair
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Our team is available to provide same day and emergency furnace repair 7 days a week across the metro Denver area. You can expect one of our friendly, professional technicians to arrive in a fully-stocked state-of-the-art van that's literally a 'Warehouse On Wheels', so we can repair your furnace quickly and get your home comfortable again.
Reviews (54)
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Ellen C.
Jun 23, 2022
I can't get them to fix a swamp cooler they installed a year ago. I have called many times and they never return my calls.
Yesima Sherrod
Jun 14, 2022
I'm sure the techs may be great based on the reviews but never got further than the initial point person, Doug. Called him at the beginning of the week and was given the run around all the way through Saturday. Gave up half the week to stay at home and wait for a tech with last minute or no updates on rescheduling issues. The tech that was scheduled yesterday hurt his back which is understandable but we were told he was back on the job today and waited for him to come "just after lunch" today.

Ultimately ended up being screamed at by Doug for telling him I'm coming here to review because there were no solutions from him and we're now mid afternoon, no ETA updates and nothing concrete as far as true timing, while I'm doing the follow up. He suggested we text him when we're on our way back home. My instinct is not to rush home to experience the same issue and we're not your friends, we're booking a service, why can't we schedule a time and stick to it.

When I say screamed at, no one should be yelled at like that, so this absolutely needs to be documented here. Also my first Google review of any kind for any business, so that should tell you plenty. Spend your efforts looking for a reliable company so you don't end up on here as well.
Antonio Ledezma
May 17, 2022
Tried to reach them through phone number and their website and did not get a call back until 3-4 days later. They took my information and told me their dispatch would call me within a few hours. I never got a call and called them back the following day. Once again, I was told that "dispatch would call this afternoon". I have yet to receive a call and it has been a week. I understand that it is busy season, but I can't even get a appointment set up.
Sophia L.
May 07, 2022
The company came out to turn on our swamp cooler but the people sent didn't even know our swamp cooler and came in a regular car and had no tools or parts!?! Do not use them unless you have your own parts to turn on the cooler. Which then you don't need them to come at all.
Connor Rumsey
Apr 13, 2022
I've been meaning to leave this review for a long time. Between selling a home and moving, and then covid, it just always got away from me. Anyway, we had Altitude out a few years ago when our heat went out, on Christmas Eve-Eve of all days. Turned out some sensor died. It was over $700. Sucked to pay but we felt fortunate we were able to pay it. A few weeks later, we were cleaning up our Christmas decorations outside and found the check we wrote. neatly folded and tucked in a wreath on our patio.

I never noticed that it didn't clear. I don't know if they just waived it or maybe the technician paid it himself. not sure. But either way such an amazing surprise. The service was worthy of a 5-star review anyway, they came out same day and were courteous and professional. Then to surprise us with a Christmas gift like that. just amazing. Thank you!
Totootwotutu
Mar 24, 2022
I had called Doug for some repairs and maintenance on my units. Amanda was available the next day for service. She was extremely professional, arrived on time, told me exactly what needed to be repaired and provides a fair estimate. Thank you so much I will definitely recommend. Service: Repair HVAC
Emily Rosdal
Mar 10, 2022
Amanda was really quick to address issues we discovered with our HVAC (water leaks around furnace and from a nearby pipe, error message on the humidifier) and got everything in working order quickly. Super helpful, efficient, and pleasant! Always appreciate how responsive Altitude has been for us. Thank you. Service: Repair HVAC
Megan Sena
Mar 08, 2022
Amanda Murphy showed up and was very professional and explained everything to me. She worked on my heater and it took her all of 30 minutes to find the issue and repair it. I am grateful for her help and will definitely reach out to her for these services again! Service: Heating system repair
Jonna Larson
Feb 17, 2022
I really wish I could give this company and their staff more than 5 stars. Another company in town had refused to honor their service and parts warranty and literally hung up on me when I called to tell them the furnace was not working. Altitude Comfort Heating and Air's professionalism, care and speed was a refreshing experience. They replaced the system, worked through some challenging issues in challenging times and kept me informed throughout the process. They truly went above and beyond and over a weekend no less. I HIGHLY recommend them to all!
Brian S.
Jan 21, 2022
Great customer service. Ask for Amanda! She is professional, covid-safe and respectful of your home. Also called the next day to check up to see if things were holding steady.
R. C.
Jan 17, 2022
Be careful! One of the employees was not being covid safe, tried to touch my sister for no reason tell me why any employee is trying to hug people over there furnace? and walked around the house without asking and used the bathroom For 15 minutes. Then when the issue wasn't fixed the manager/owners ghosted the customer and basically stole their money. Wasn't cheap and when a new company was called they said they were over charged for the part and service for what needed to be done. DO NOT let your family alone in the situation and be careful for these SCAM ARTIST!
Brian Sartor
Jan 16, 2022
Great Customer service. Ask for Amanda! She is professional, knowledgeable, respectful and followed up after the job was done. Altitude is very lucky to have her as a technician. Service: Heating system repair
Carlos Hugo Meza
Dec 29, 2021
Altitude Comfort Heating & Air will be receiving all my business from now on because of their technician Amanda. She was professional, knowledgeable, and was able to fix our problem in a timely manner. If you need any repairs or maintenance, don't over think it, call this company but make sure you ask for Amanda!
Joshua Tafoya
Dec 13, 2021
Friendly, Professional, and Knowledgeable. Amanda was kind and very informative on what she was doing and how to maintain my heater system. Highly recommended. Services: HVAC maintenance, Heating maintenance
Marek Grob
Dec 05, 2021
Our furnace was making the noise. Amanda replaced the inducer motor on the unit She did a very good job. Amanda explained her diagnostic so we didn't feel intimidated. She responds quickly to the texts or phone calls. Service: Heating system repair
Megan L.
Aug 21, 2021
No seriously. RUN.fun far away from this business. They flooded my basement and stopped answering calls. Answered one call from my insurance company then blocked their calls also. The Better Business Bureau emailed me saying they wouldn't even call them back and to write to the state attorney general which I did. Next step the news! Their address is also fake - they haven't been there in 4 years. Oh the icing on the cake. even their tech quit saying it was a terrible company to work for!
Jen Johnson
Aug 16, 2021
DO NOT RECOMMEND! Whatever you do, do not use Altitude for any service. We are now dealing with a very poorly and incorrectly installed evaporative cooler. The company we hired to take a second look at the horrible installation of this unit will not even work on it because they don't want to take on the liability of just how poorly installed it is.

This company does not respond to our calls, they do not act professionally on the phone. A few of their service techs are nice, but this company should not receive any more business.
John M.
Jul 22, 2021
Took the technician a day and a half to complete the job and had to make multiple trips to get the correct parts. Pretty sure I paid labor for all the trips to the store, final cost was high. Extra time was also taken to get the connections to stop leaking and the supply line for swamp cooler was not run very professionally.
Catherine Reeves
Jul 03, 2021
We couldn't be more satisfied with our experience with Altitude Comfort Heating and Air. They were quick to respond when our A/C stopped working and sent Amanda to help us out the next day. Needless to say, she was amazing. She quickly diagnosed the problem, went to get parts and then had everything working in less than 2 hours. She also cleaned out the outdoor unit for us which was causing problems as well.

I can't say enough how professional, knowledgeable and polite she was. It was a pleasure meeting her and I would certainly recommend this company to anyone. We will definitely use them again in the future with all of our HVAC needs.
Danie Vigil
Jun 21, 2021
Amanda was fantastic! She explained everything that I needed to know. Even my fur babies loved her. I strongly recommend Altitude Comfort Healing and Air! Thank you! Services: AC maintenance, AC repair, AC installation
A. Google User
May 16, 2021
AC was not working efficiently and the heat in house was so uncomfortable. I contacted them and they were extremely kind, understanding and professional. They were very helpful in first walking me through some checks at home before deciding to send a technician out and worked around my schedule to squeeze me in. I received a notification when the tech was on his way and the technician was just as professional and knowledgeable.

Immediately found issue, did a thorough check, cleanup and service on my AC units. Gave some additional helpful advice. I'm back in comfort again. I highly recommend this company and will definitely use them to service my heat & AC again.
David Whitaker
Feb 23, 2021
Warning: do not hire Altitude if you value quality or level of service. I'm not one to leave negative reviews, but I don't want anyone else to fall victim to their horrible standards. I would advise you to check Yelp or Facebook as well where Altitude's reviews are more indicative of what you get. We hired Altitude to install central AC in our house a couple of years ago.

In doing so, they drilled extra holes in our exterior (ones they didn't end up using), and caused water damage on our bedroom ceiling. We found out later from another contractor (who's great), that they used wiring that was not up to code, and failed to install a drip pan in our attic (also not up to code), and that missing drip pan caused the water damage in our ceiling.

After countless hours on the phone and coordinating via email, altitude did come back to bring their work up to code (I think because, however they did not fix the ceiling damage and went non-responsive on us. Do not hire these thieves. You will regret it.
Benjamin Nichols
Feb 14, 2021
When my furnace went out during the coldest month of the year, I contacted numerous businesses to fix my furnace. Altitude Comfort was the first place to answer my call as well as schedule a professional to come to my house to look at my furnace. The entire experience working with them was pleasant from the nice, professional, and courteous man on the phone to the technician who came to my house, Amanda. Amanda was able to diagnose the problem and get my furnace working again. She was pleasant to work with and very professional as well. I will definitely use Altitude Comfort again when the need arises.
Sara H.
Sep 10, 2020
I will never use this business again. Two years ago my Brother and I used the company for my brand new A/C unit and furnace both. The put in to big of units and now all 5 heat exchangers are cracked and my brother is left with a $7600 bill. Both of us are financially frugal and this company is not worth any savings and they do not know what they are doing please avoid using them at all costs!
Jeff W.
Aug 04, 2020
They do not warranty their work. system has been having issues since install 4 years ago. excuse after excuse with doug. now they have stopped answering the phone.
Wai W.
May 20, 2020
Warning! Warning! Stay away using them for any HVAC service. I regretted not reading Yelp review before I hired them to install a heat pump in my condo about 5 months ago. It turned out that my AC was not installed properly from the get go. It took awhile to get a hold of them, they scheduled a visit which no one showed. After calling for many days, they promised again they will come, but again no show.

So got this lip service for the past 4 weeks. Their warranty of service is completely worthless. It was a very expensive lesson for me and I hope no one else will go thru my terrible experience with this company.
Austin Quiring
Jan 16, 2020
Unprofessional technicians and price gouging. I regret not using Applewood. I will be sharing this information far and wide to try and spare others of my experience.
Austin Q.
Jan 16, 2020
Please, do not use this business. Unfortunately I only read Google reviews which does not reflect the way their business is operated. They have an F rating with the BBB. Their technicians that came out were highly unprofessional and their prices were entirely unreasonable. Use Applewood instead.
Christopher H.
Jan 06, 2020
This is the first negative review of a company I have ever written, but feel like my experience needs to be shared. I had an appointment set with Altitude from 12:00 pm to 1:00 pm for a furnace that broke in the middle of a stretch of sub-freezing days. With an infant at home, I was happy to have their services at hand. By 1:00 pm, no one had showed, so I called and left a message.

Finally at 2:00 pm they responded, saying their phone system had been down and they couldn't reach one of their technicians, but they would send another one my way, promising to call back in just a few minutes. 15 minutes passed and no call. I called them back and no one picked up. Another 15 minutes and the same thing, then another 15 minutes and the same again.

It was nearing 3:00 pm when I realized they had abandoned me and that I had wasted a day of leave from work with nothing to show but a broken furnace and a house that was going to be too cold for our family. Still I gave them the benefit of the doubt, but when 5:00 pm rolled around with no word, I called to let them know I was respectfully frustrated and gave them the opportunity to reach out to at least calm the waters.

They didn't. To think that they had such little respect for the basic needs of a client tells me everything I need to know and I would advise anyone to find a different company.
Megan M.
Oct 16, 2019
Extremely disappointed in recent service. Several years ago our AC went out on one of the hottest days, but Altitude was the one to send someone out immediately to fix the unit. A couple years later as we continued to use Altitude for maintenance, we did our install with them (water heater, furnace, AC). They were always professional, courteous, and knowledgeable.

Fast forward to a couple weeks ago. Scheduled our yearly maintenance for both AC and furnace (which we were told to do to keep warranties valid). Appointment was at 9.30am and no one showed. At 10.40 I called and a woman answered saying she was just trying to find my number to call and say they were running late, and assured me someone would be at my house within an hour.

I expressed to her that I had to go back to work at 12pm. I waited an hour (it's now 11.30) and still no one is at my house, so I called a second time. The same woman answered the phone saying she was right down the street and would be there soon. I told her I would have to re-schedule as I had to leave by noon and she got irritated, telling me she was right down the street. Having done this maintenance every year with this company, it has always taken AT LEAST an hour to service each unit, so I asked "you are charging me $130 PER unit and you're telling me you can service both in half hour?" She responded "oh yes ma'am, yes we can do both in half-hour". Having felt jerked around I told her no thank you, I had to leave for work and I would re-schedule as I had planned for this appointment now 2+ hours ago.

She told the passenger in the car "ugh we aren't going there now" and then hung up on me. I was baffled that she hung up on me when they were the ones running so late. If this is the way they wish to treat customers who have been with them for years, and have recommended them to various family/friends/etc, we won't be doing business with them again. We'll be looking elsewhere and give our $$ to a company that appreciates customers instead.
Ashlee D.
Aug 15, 2019
I was fortunate to have a company available to quickly fix my swamp cooler issue within 24 hours. However, their pricing is not competitive. I was told that I would be receiving before and after pictures of the work that was completed. I never received that, even after directly texting the technician and asking him. I was charged $420 to replace a belt, tighten a bolt, and also reattach a bracket that came loose.

I also did not receive an itemized receipt, just the charge itself. I would not recommend using their services or business. I had this swamp cooler installed 3 summers ago, some parts may need replacing, however, it shouldn't cost the customer over $400 for a "minor" tune-up.
Giga Romero
Jul 20, 2019
We paid over $700 for swamp cooler repair. swamp cooler continued to leak and I had to make another 5-10 calls to get them back out, nothing bu excuses about why they didn't call me back. swamp cooler is still squealing like crazy and is not cooling the house at all. I don't even want to deal with the hassle again, so I'll be hiring someone else to do the job this company couldn't do. they didn't have any issue charging me for it though.
Misty K.
Jun 19, 2019
If you are one of those people that enjoys good customer service and contractors respecting your home, DO NOT HIRE. In May of 2018, the installation of my evaporative cooler was a nightmare - the contractor didn't cover or protect anything in my home and a cleaning crew had to be sent out to fix the mess. An additional contractor was sent out to fix the ceiling, wall, and floor damage made during installation.

When it was time to shut the system down for the winter, a leak started from the cooler that was so bad I had water pouring from the ceiling and into a bucket on the bed. During this whole process it was very difficult to get return phone calls or emails. Fast forward to today, I hired a new company to turn the cooler on (and replace broken parts) and they informed me the setup was done incorrectly and the duct work and motor needs to be replaced in order to even use the system. I can't caution you enough - do your research and hire someone that cares about getting the job done right!
Jason H.
Jan 22, 2019
Was told the cost would be $130 over the phone and then they claimed that was just to drive to my house. Subsequently charged me $500 and then ignored my calls for two weeks. Mind you, all they did was turn a dial on my boiler. They're not upfront with pricing and said they'd send an invoice but haven't. Look elsewhere for a heating company.
Amy S.
Dec 11, 2018
Bummer. Can't recommend them anymore. Key folks have left, and it's just not the same.
Rob Givens Iii
Jul 04, 2018
This company cares about their customers. Isaac was over the top helpful with all my needs. Definitely calling you guys everytime I need A/C or Heating repair.
Anthony W.
Jun 28, 2018
Absolutely overpriced! Call around and get quotes. The tech was friendly and informative, but seemed to enjoy bending us over with the cost. Everything is priced on a tier system. $20 capacitor cost $370 from Altitude. I do not recommend using them. They call it tiered pricing, I call it getting bent over.
Ang H.
Nov 28, 2017
I paid $129 for a consultation. The rep never even came into my house to look at the thermostat or furnace. The entire "sales call" took less than 5 minutes. What a WASTE of money! The quote was double to triple what other HVAC companies quoted me. Altitude quoted me $814 for a new A/C motor. Two other companies quoted me around $300 for a new motor. Altitude also quoted me $8,175 for a new 14 seer A/C unit and an 80% efficient variable speed furnace. I am getting a 16 seer multi-stage A/C unit and a 96% efficient variable speed furnace for $6,269. I feel like I got robbed of $129! Such a waste of money.
Linda B.
Jul 19, 2017
Bad diagnostic even tho I paid for it. Questioned company if they tested the circuit board and no response after 2-3 phone calls. Had I known I would not have opted for a repair but a new furnace since the cost was only slightly different.
Chris Stofac
Jul 08, 2017
Huge shout out to Altitude Comfort and Hayder Alzasdi. I got an appointment quickly during a high demand time and had a technician that went above and beyond to fix my problem. They now have a customer for life!
Aleka P.
Jun 21, 2017
Cisco has been out to repair my 30-year-old furnace a couple times and both times he was great! He's knowledgeable, friendly, and a trustworthy guy. I work in the industry, so I generally know up from down. The most recent time, someone else wanted to replace my unit, but he fixed it for the price of a fancy dinner.
Pamela Greenfield
Jan 02, 2017
From the first phone call to the technician completion it was a great experience. Aimee was helpful getting us an appointment scheduled and Michael F. was amazing! Thank you for getting our furnace going again and explaining as you worked. Thank you!
Allie V.
Dec 06, 2016
I need to replace the blower motor on my furnace. I called Altitude Comfort Heating. They came over and for $130 confirmed all I needed was to replace the blower motor, and gave me a quote of $1,100 for the swap-out. $1,100.00. The part is $70. Labor time is 10 minutes. I've discussed this with other HVAC companies and got my repair elsewhere.
Angel Neely
Oct 30, 2016
Very impressed with our service technician, Michael. He was timely, thorough and knowledgeable. Our whole experience from scheduling through the actual cleaning and checkup was exceptional. Would highly recommend Altitude Comfort!
Mavis O'Neil
Sep 09, 2016
Great company with whom to work. Recently had an annual furnace tune-up. I had not had this particular gentleman (always had Dave, but he was out of town when I rang) before, but was very impressed with him. His name is Michael. Thanks Altitude for such fine service
Wendy Theobald
Jul 28, 2016
Excellent work. A very cordial representative. He offered me good advice for the future inspections of my furnace and air conditioner,
Wendy Theobald
Jul 28, 2016
Excellent work. A very cordial representative. He offered me good advice for the future inspections of my furnace and air conditioner.
Cliff Adcock
Mar 30, 2016
So my heater was blowing cold air and I googled someone to come take a look at it and Altitude Comfort sent Parker out to fix it and I have to say I was VERY pleased with the service and the entire experience. I highly recommend this company for a very honest and fair diagnosis and repair. If your lucky, they'll send out Parker F. Thanks again, Cliff Adcock
Melinda Eskridge
Feb 17, 2016
This is a great company - fast service, willing to take whatever time is needed. I trust them!
Terrie Ortiz
Jan 28, 2016
Everybody at Altitude Comfort lived up to my expectations, and I was expecting a lot. I read all their reviews and I can confirm they do go out of their way to provide great service. Parker was great!
James Briggs
Jan 22, 2016
Very customer focused and easy to do business with. They took the time to help me figure out what type of heating and air system would be best for our house. Ryan and Zach were very meticulous when they installed the new furnace and AC and the follow up has been more than I expected.
Adam Jorgensen
Nov 17, 2015
After the experience I've had with other heating and air companies the people at Altitude were a breath of fresh air. Ryan was great and he kept everything very simple. Couldn't have asked for better customer service.
Marianne Junker
Nov 06, 2015
Best furnace repair service ever! Wendy was super helpful and Parker was very friendly professional. I couldn't have asked for better service. Hopefully I won't need them again anytime soon be using them in the future without a doubt.
Janice Foster Culver
Sep 12, 2014
I highly recommend Altitude Comfort. Dave came out to fix my furnace at 8pm, and he went above and beyond the call in getting it up and running again! I am so very grateful to him and this company for their amazing service, fairness and honesty.