HVAC reviews in Centennial, Colorado

Indoor Air Quality has been servicing our HVAC for 10+ years. When it was time to replace my AC and furnace, I knew they would do a great job. They just finished with the replacement. They arrived on time and even finished earlier than expected. I strongly recommend the company and their service.

We have multiple HVAC systems and IAQ services them all. Joe loves our dogs and knows all of their names! His rates are very reasonable, and we trust him with our garage code. Thanks, Joe!!

Performed seasonal check on out heating system. Technician was very efficient and friendly. Fairly priced.

They replaced a complete HVAC system including upgrade of heating and humidifier.
My wife is so happy they did not make a single mess. You would swear nobody had even been here. You can sure tell why they have been in business so long. No surprises. Very reasonable price. Had to call about and not working some time after install. Called at 6 at night they were there at 8 the next morning and replaced very unusual part. Just an incredible company.

I needed help replacing a thermostat that was almost as old as I am. I reached out after hours and had a callback within an hour, with an appointment scheduled for the next day. Joe arrived within the estimated service window. He answered my questions, installed my thermostat, and did what was probably routine maintenance on my furnace. He also helped check all of the vents, gave me pointers for getting better airflow, and stayed long enough to ensure that the system was working properly. I highly recommend Indoor Air Quality.

We’ve worked with Joe for about 9 years and I couldn't be more impressed with his service. From start to finish, the experience is always seamless and professional. He’ll take the time to explain what is going on and what work needs to be done. He also gave me some tips to make our heating and AC more efficient.

This week, we had an issue with our furnace leaking. He came out on short notice and fixed everything quickly. I always appreciate his honesty and hard work!

If you’re looking for someone to help with your HVAC needs, he is the best to go to!

Great service and followup. Very responsive to any questions or issues. Very experienced in all aspects of HVAC.

Eric was on time and very professional. Made some recommendations for me going forward. Highly recommend.

Quality and professional installation. On time and communicative about the how the equipment functions including how the thermostat (Nest) interacts with the new steam humidifier.

Indoor Air Quality did a great job for me. They were the only company which was able to replace a special type of fan I had which was starting to fail. They made the replacement process easy and painless. I highly recommend them.

These guys are the absolute best. I've worked with them for 10 years on all sorts of HVAC projects - from new installs to repair of ancient equipment - and they are quick, professional, super smart, and really nice humans.

IAQ (Joe and Pat) replaced our gas furnace with a heat pump and backup gas furnace. They have serviced our old furnace for several years. Always prompt, professional,competent and reasonable. Plus, just nice guys! Thank you!

Joe and Pat are wonderful to work with. They installed a steam humidifier for my wife and I, and came back twice, both times promptly. Once, to fix a drain valve defect, and the second time to deaden noise from the unit. Everything works and it’s quiet now. Very happy with the results!

Pat and his team at IAQ are fantastic. Our 20 year old furnace was failing to light intermittently during a cold snap. He was able to come out same day and diagnosed it as a dirty flame sensor, which he cleaned quickly while we chatted. Our furnace was 20 years old and the air conditioner was 32 years old - still functioning, but definitely in end-of-life territory. Pat was not actively selling me on a replacement, just letting me know what the new technologies in heat pumps were like. He also mentioned that the federal, state, and utility incentives would be reduced or eliminated starting in 2026. I had in the back of my mind that replacing the system would be coming sooner or later, and with Pat's guidance I was able to do a full heat pump replacement with furnace backup with 40% of the cost covered by government and utility incentives. I would have completely missed this opportunity had Pat not taken the time to educate me. I ran his quote through a couple of AI tools and confirmed the brand and size he was recommending were good for our house, and for the Denver market the AI tools confirmed the price before incentives was highly competitive. IAQ's reviews were great, so for the first time ever I didn't even bother to get competing bids. I just felt like Pat was a person I could trust and everything he was telling me lined up with the reading I did later that day.

On the day of install, Pat showed up with three trucks and five or six guys. They knocked out the replacement of the entire HVAC system in about 4 hours, walked me through using it, and were careful inside and outside the house. The system works great, I got it at a great price, and I now have an HVAC company I can trust whenever I need their help. I whole heartedly recommend Pat and IAQ for their promptness, professionalism, quality of work, pricing, and friendliness.

Indoor Air Quality did an amazing job installing an air conditioner in my home. Upon their initial assessment I could tell they were very knowledgeable. He sent over a few options for the installation and after I decided on one I was put on the schedule in less than a week. They had the work completed in less than a day.

Overall Indoor Air Quality showed great knowledge, experience, professionalism and integrity from start to finish!

I highly recommend this company for all of your HVAC needs!

Had them come for routine heating maintenance. The technician checked several components I wouldn’t have thought about, including gas pressure and airflow. The visit took about an hour and felt thorough. Good preventative service overall.

Heating system repair was needed after our furnace stopped turning on. The technician checked the ignition system and found the faulty component. Replacement was done the same day. Heating was restored before the evening.

The team was incredibly efficient and professional when dismantling my outdated A/C system. They arrived punctually and explained each step of the process with clarity and patience. Despite the complexity of the task, they completed it in just over an hour. I appreciated their attention to detail and the cleanliness they maintained throughout. I wouldn't hesitate to call them again for any future HVAC needs.

After our thermostat went haywire, I was relieved to find a technician who could fit us in the same afternoon. They arrived promptly and quickly diagnosed a wiring issue that had eluded me. The repair was efficient, and the technician took extra time to explain how to prevent similar problems in the future. Within an hour, our home was comfortable again. Their expertise and friendliness made the entire experience stress-free and informative.

Having my HVAC system serviced was a breeze this time. The technician arrived promptly and was incredibly thorough, explaining each step of the maintenance process in simple terms. Within an hour, he had everything cleaned and optimized. I noticed an immediate improvement in efficiency and air quality. It's reassuring to know my system is in good hands. Highly recommend their professionalism and attention to detail!

After a thorough check-up and some fine-tuning, our A/C is now running smoother and cooler than ever. The technician was friendly and patient, explaining everything clearly. It only took them about 45 minutes, and I feel confident knowing our system is in good hands. Highly recommend their expertise for peace of mind!