Serving Denver Metro, from Fort Collins to Castlerock
24 Hour Emergency Service (303) 732-6616

At Eastside Heating & Air Conditioning, Inc., customer service is our highest priority. We would like to share some of the comments we have received from our satisfied customers.

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When our furnace wasn’t working, Eastside Heating & Air Conditioning not only checked and cleaned the furnace, but when it quit again (due to an error caused by our roofer), they came back after hours and pinpointed the problem, which was immediately fixed. We have used Eastside for 25 years, when we were in a townhouse in Thornton, then when we had a large house in Westminster, and now for our condo in Littleton. We recommend them highly. I can’t say enough good about them. They’re good people. – Brenda and Ken

The service men who came to install our new furnace were very courteous, friendly, and efficient. – Jane, Brighton, CO

Just a short note to thank you for your phone call upon my return from vacation. With regard to the service call – I’m pleased with the solution suggested by your service man, and should point out that his work was professional and he explained things very well. – Bill, Littleton, CO

We are extremely pleased with the service, and the improvements on our new, high efficiency heating and cooling system. We’re saving a ton on our gas and electric bills. Thank you. – Debbie, Longmont, CO

My new heater is great – no more noise and very quiet. – Jack, Henderson, CO

Thank you so much for the wonderful project you just completed — working with you was a true pleasure. Your industry knowledge, expertise and fairness made a huge impression.

The guys did a great installation (yes sheet metal can be beautiful), and I am so happy with the quality and professionalism demonstrated by everyone.

Thrilled with the new system!

Thanks again,

– Jane Forbes

Save today with our special offers

All promotions

Purify Responsive Ionization Air Cleaner

$2499 installed – save $300 over reg price

Learn More

Cannot be combined with other offers. Contact us at (303) 732-6616 for more details.


Tune-Up Special

$89.00 clean & check all safeties

Limit one coupon per purchase. Cannot be combined with other offers. Contact us at (303) 732-6616 for more details.


Military & Senior Discount

3% off up to $500

Limit one coupon per purchase. Must present ID at time of service. Cannot be combined with other offers.
Contact us at (303) 732-6616 for more details.


GPS Maintenance - Free Air Cleaner

$999 installed – save $200 over reg price

Learn More

Cannot be combined with other offers. Contact us at (303) 732-6616 for more details.


Reviews & Testimonials

Customer Satisfaction Guaranteed

All Reviews Leave a Review

These guys are great and reputable! Almost got scammed by another HVAC company… these guys saves the day!! Don’t buy a new unit until these guys have a look at it.

Cory M.

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.

Tom S.

It turned out I had a major problem (someone had tried to steal my outside unit and had cut all the lines). East side was awesome, made the time to fix and get it running, and worked super efficiently and were patient with all my questions. I would recommend these guys for sure. Were great to work with.

Adam S.

First time customer of Eastside Heating & Air and we were very pleased. Cesar was friendly, honest, and knowledgeable. Will use again and would definitely recommend based on price and service!

Scott P.

Ceasar, was on time, professional and knowledgeable. His inspection was thorough, and he kept me updated throughout the process. He was efficient and answered my questions. I would highly recommend this company to anyone in need of heating and/or AC service.

Philip A.

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.

Erin N.

Eastside just checked and serviced my furnace and AC. The technician, Cesar, who came was great; very professional, thorough, and friendly. He didn’t rush through it and addressed the concerns I had. I’d recommend Eastside to anyone.


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