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Eastside Heating and A/C has been creating perfect environments for over 35 years. Our technicians are EPA licensed and well trained in light commercial and residential air conditioning and heating installation and service. Whether you're interested in geothermal heating, hybrid heating, gas furnaces, high-velocity systems, zoning, we are happy to help.

Upgrading from an air conditioner that is ten years old typically reduces energy consumption between twenty to forty percent. Specializing in humidifiers, HRV/HEPA air cleaners, air purifiers, UV lights and a long list of progressive options.
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Eastside Heating & Air Conditioning, Inc. Denver Metro, from Fort Collins to Castlerock's premier HVAC team. Eastside Heating & Air Conditioning, Inc. is a family-owned and operated business. Founded in 1976, the company has concentrated on residential and light commercial heating and cooling service, installation, and design.
At Eastside Heating & Air Conditioning, Inc., the satisfaction of our customers is our top priority. We're familiar with the cold weather in Denver Metro, from Fort Collins to Castlerock and the heavy workload your essential heating system carries year after year. No matter the age, make, model, or style of your heater, some issues are unavoidable.
Is the professional maintenance of your heating system necessary? Absolutely. Annual service is the most cost-effective method to combat wear and tear. Eastside Heating & Air Conditioning, Inc. recommends scheduling upkeep in the early fall, prior to starting up the heater. Count on us to complete thorough troubleshooting, address concerns, and make sure all components are working at their best. We handle all makes, models, and styles of residential and commercial equipment with swift scheduling, arrival, and turnaround.
As a home or business owner in Denver Metro, from Fort Collins to Castlerock, you certainly want to save money where you can. With the challenge of local weather and rising energy costs, upgrading to a high-efficiency furnace is a worthwhile investment.
Reviews (15)
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John Nelson
May 19, 2022
Excellent, thorough, professional company! Their staff is very friendly and very responsive. Best HVAC company I have ever used! Services: A/C system maintenance, HVAC system maintenance
Michelle Reed
May 02, 2022
Critical: Professionalism The driver of this van was driving like he was drunk swerving into other lane constantly. Passed over into the other lane more times than I could count. Does not look good on his company to be constantly swerving like that.
Beth Tupta
Nov 18, 2021
I requested an ac repair early in the summer and used Eastside based on soonest available. As a result, I did not have ac for almost the whole summer due to their incompetency. Initially, they cleaned out the furnace because it was dirty, and this fixed it for less than a week. They were able to come back a week later and noted the other person missed a whole section because they didn't actually take the furnace apart.

This was cleaned out, however, again, the air stopped working 2 weeks later. They came back a few more times and were unable to figure out what the problem was. This spanned over a couple months. I kept having them come back, because I did not want to have to pay another company for diagnostics all over again, plus everybody was booked 3 weeks out. Shame on me!

I eventually was able to find the company that installed the ac and turns out it was under warranty. They came and were able to diagnose low refrigerant with a leak immediately! Simple problem. They also told me the fan part Eastside ended up replacing after their 4th visit was under warranty. When I spoke with the manager from Eastside, he said they don't work with Amana, so I still had to pay. what?!?

That's a lie, and I don't even believe the fan was actually not working. Despite me discussing with management that they misdiagnosed the problem time and time again, and that I should not have to pay for a service that did not fix the issue, he was adamant I had to pay. 550 dollars for no ac all summer. That's ridiculous! I'm ashamed of my own stupidity that I kept having Eastside come back. If you want your ac fixed by a competent and trustworthy company, DO NOT use Eastside!
Heather M.
Oct 08, 2021
I had them come out for an annual service and everything went smoothly and as expected. Technician was on time and friendly. Quick and easy!
John Holton
Apr 29, 2021
My home was built in 2013 and Eastside was the company that installed the HVAC system. This is how I became aware of them. I had them come out today for a cleaning. Raul was the service technician and he was excellent. He was professional, knowledgeable and courteous. Prior to starting the job, I appreciated him walking me through what the service included, and showing me the parts after they had been cleaned. Though, I don't have that much to compare it to, I believe the pricing was reasonable as well I hope I don't need them to come out again anytime soon, but if I do, they'll be the call.
Shannon Elam
Mar 29, 2021
We had Eastside install a new AC unit in our home in 2016, recommended by our contractor. We've had nothing but problems with it ever since. The air handler has leaked and set off our smoke alarms in the middle of the night. It freezes several times every summer. It's frozen again right now and it's going to be 96 degrees today. We've had other companies come out and try to repair it over the years and they all say Eastside put in a condenser much too large for our house and that is why it keeps freezing. Eastside has chosen not to stand by their work in our case, unfortunately. We spent a lot of money on a new system that has never worked properly. I cannot recommend this company.
Kevin Chiappone
Jan 31, 2021
My neighbor was having them do a/c work and when I came home they were blocking my driveway. I told them, nicely that they were too close and they looked at me like I had two heads. They could have easily moved as there was plenty of room between their vans but they chose to not do anything. Nice, glad I'm not their customer and hope that isn't a reflection of their work or professionalism but it probably is.
Niko May
Jan 20, 2021
Critical: Value They are expensive in my opinion. Replaced one 3 amp fuse in my thermostat for $120. P.O. # 89300. I picked them up because they built my house in 2018. Next time I will try to find somebody else. Service: Repair HVAC
James Lambert
Nov 22, 2020
We have been using Eastside since we purchased our home in 2016. They are very responsive to our calls and appointments were easily made. All the technicians have been excellent, especially Efren, and they always take their time to explain the work they performed. Keep up the good work! Barbara Lambert
Tom Sterrett
Feb 29, 2020
Had Eastside clean and service my furnace and AC unit today. The technician was very friendly and capable. I have had Eastside come to my house a number of times over the years, for repairs and servicing. Always the same positive experience with very good, honest service and reasonable prices.
Erin Niehus
Dec 21, 2019
We had an issue with our A/C unit and Fernando explained all the options up front when I made the service call. Caesar came out and completed the repair. He was upfront, honest and didn't try to over sell me- which is greatly appreciated. Would definitely recommend.
Michela M.
Jul 05, 2016
We have not had our AC fixed or looked at yet. We made an appointment two weeks ago for today, as our landlord will only use Eastside. We received a call this morning that there was no technician available to fulfill our appointment, and we were pushed out to Thursday. I understand we have no choice in the matter, so we have to use this company either way, but we have already gone two weeks without Air Conditioning, and our appointment obviously means very little.
Jenny S.
Dec 07, 2015
I have grown to trust Eastside Heating. They just repaired my humidifier for less than what they quoted! Technician was friendly and respectful and early for our appointment (but called first to make sure that was okay). Many years ago when our house was new, we were having furnace problems. The builder's installer couldn't figure it out.

I finally called Eastside and they not only figured it out but also fixed it for free because it was under warranty. They could have charged me and not dealt with the warranty but they did the honorable thing. I not only will be calling them when I need help again, but also highly recommend them.
Rob L.
Dec 04, 2015
HVAC companies are typically worse than lawyers when it comes to unethical practices. They scare you and charge you piles of money. Not Eastside. They were up front, honest, and easy to work with. I highly recommend them to anyone looking for HVAC services and I will not hesitate to call them first on my next project.
Harold Schambach
Jan 12, 2011
I contacted Eastside to fix my AC/Heater, and they came out to my house 3 times to fix the issue. Each trip, they charged me for new parts and service, yet the problems continued. I finally called another company who fixed the issue right away. I would strongly recommend AGAINST using this company!