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Key Heating & Air dba Oneguy Heating & Cooling
Electrical Baseboard or Wall Heater - Repair, Central A/C - Install, Central A/C - Service or Repair,
About us
Your Heating & Air Conditioning Service Expert for over 20 years! As much as half of the energy used in your home goes to heating and cooling system. Making educated decisions about your home’s heating, ventilating, and air conditioning (HVAC) system can have a big effect on your utility bills — and your comfort. If your heating or air conditioning system is more than 10 years old, consider having them evaluated by the HVAC expert of Oneguy . We are an army of 4. I am a small company offering a higher quality installation of high efficiency equipment and system design in new custom homes or fixing all the trax homes that will not heat or cool with an Arzel wholehouse zoning system. A perfect solution for your basement finish project that will fix all your problems on the upper floors. Oneguy does not use sub-contractors unless it is a lic. plumber, electrician, to do any work out of my field to complete the job. I am lic. in Denver and most all metro cities and carry 2 million liability insurance. As an American Standard Dealer, I can provide you with the best furnaces and air conditioning units on the market as listed by consumer reports and consumer digest. You can look that up on thier web sites. Call Oneguy where quality takes priority 720-560-7100
Business highlights
Emergency services offered
21 years of experience
Services we offer
Full service repairs, Unico smallduct high velocity a/c systems, Whole house zoning systems, a/c replace or install, aircleaners, bathfan venting, cooktop venting, custom home ducting design and install, direct vent wall furnaces, duct instalation, fan coils, forced hot water heating, furnace replacement, garage heaters, heatpumps, high efficiency boilers, humidifiers, radiant floor heating, rangehoods
Amenities
Emergency Services
Yes
Free Estimates
Yes
Reviews
4.985 Reviews
| Number of Stars | Image of Distribution | Number of Ratings |
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| 96% | ||
| 1% | ||
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Showing 1-25 of 85 reviews
Phil S.
Sep 2020
Excellent. Very professional, Final cost came in under estimate, substantially below competitive bid and with equipment.
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that service."
Karen K.
Nov 2019
My original purchase & installation of furnace, A/C & air purifier was done by them. Saturday night 11/16/19 my thermostat stopped working & I had no heat. I called Lee on Sunday morning & he answered & took the time to help troubleshoot over phone. He then sent his tech 1st thing in the morning Monday & my thermostat was replaced the same day. They also did a great job of original install, came up with great suggestions & reasonably priced. Great service!
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
Jennifer C.
Oct 2019
Lee and his team are amazing! They were prompt in returning my call and were able to be at my house for the repair quickly! Their pricing was fair and they made an excellent repair to our zoning system issue. I would highly recommend them.
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
Troy C.
Jul 2019
We have been in need of a new A/C system for quite a while. We contacted One Guy Heating and Cooling last year and was impressed with his "no nonsense" quote. We ended up not buying anything then. So comes this year and our A/C unit went down. I had kept the quote and contacted Lee at One Guy. He came out again and checked everything and gave us a new quote very similar to the one last year. Lee gave us a date of the following week and showed up when expected. He estimated it to be a day and a half work and that is what it was. Very professional work and timely. Lee also handed us down some discounts he received on the equipment. That was very much appreciated! We are very happy with our American Standard A/C and furnace. I highly recommend One Guy Heating & Cooling to anyone. His price is very fair, and he does excellent work. I will certainly use him again if I need an upgrade or work done.
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
Cathy C.
May 2019
Lee was very responsive, competitively priced and did a great job. We received quotes from a number of service providers and he was by far the easiest person for us to work with. He listened to what we wanted and found an efficient solution without trying to upsell us on a larger project scope than we wanted. I would definitely hire him again on future HVAC needs. Thanks!
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
Neil G.
Apr 2019
Lee is a friendly and knowledgable guy who doesn't try to upsell. He was clear about what our house could use and came up with a good solution to solve our problem. He was flexible both with our schedules and any concerns that came up. Would definitely work with him again.
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
ALAN M.
Oct 2018
Working with Lee was great. He came over, looked at the old system and made several suggestions. He e-mailed a estimate and was able to install in a couple of days. System works so much better than the old system and is much more energy efficient. I would Highly recommend Lee and his service tech to anyone as they provided outstanding service. A plus work. Thank You Lee
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
Karen E.
Jul 2018
We are new to CO and had no connections or experiences with HVAC repair shops. Everyone we called was booked out at least a week. When I explained to Lee, the owner, what was happening at our home (water had begun seeping through the ceiling as a result of the AC freezing up), he offered to come to our home early the next morning. Lee didn't know us. He wasn't referred by an existing or former customer. He simply felt bad for us and squeezed us into his already full schedule. He even followed up a few times to see how things were going. The communication was excellent. That's service, and we wold hire them again in a heartbeat.
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
Sona G.
Jun 2018
Lee called back immediately, found time in his busy schedule to diagnose the problem, made himself available within a couple of days to do the install, and gave us a great price for the unit. Overall, he did a fantastic job!
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
Lido B.
May 2018
Work went very well. Work was done on time with competitive pricing. They took care of permits. The inspectors on both cases found no issues.
Response from Key Heating & Air dba Oneguy Heating & Cooling
"(11/6/23) Thank you for providing feedback. Oneguy has been recently purchased because of his amazing reputation. We at KEY will continue that level of service and friendliness!"
James D.
Feb 2018
We were looking to increase from a 80% efficient to 93+% efficient furnace with a SEER 16 A/C. Lee came out and provided options and a cost for each level of efficiency on the furnace side married to the 16 SEER A/C. Lee's numbers were great at all levels and we discussed benefits and problems associated with the upgrade to the more efficient furnace. In the long run, given all of the changes needed to upgrade we selected a less efficient furnace, but improved the functionality and efficiency through adding a two stage gas valve and a EC motor. We also oversized the A/C coil slightly which allows a greater cooling capacity from the efficient condensing unit. The operational cost savings are less than the high efficiency system which costs far more to maintain and has a shorter life. We have really only run the furnace and it is quiet and works great. I am sure the A/C will be the same - If not Lee will come out and stand behind both his work and his system. We are very happy with the new system,
Gwyneth S.
Feb 2018
These guys were great! He took the time to test a few different parts in order to identify the problem. I was a fairly simple fix. I know this furnace only has a few years of life left in it, and Lee has already earned my business for the new one!
Brian W.
Jan 2018
Service was great!
Servane R.
Oct 2017
Quickly fixed it on the spot. Very satisfied.
WAI N.
Jul 2017
Great, fast and friendly service. Professional and done on time per their estimate. Fair pricing.
Jennifer K.
Jan 2017
Did a great job, figured out what was going on and fixed it. I would hire them again.
Robert H.
Jan 2017
The installation went fine. It works, but it struggles to get humidity up to 25% and I only have a 2700 square foot house! The humidifier is a "drip across a grid" system, not a decent system like AprilAire. I paid good money to get poor performance. I would never buy from Angie's list nor "One Guy Heating, Cooling & Sheetmetal Inc." again
Response from Key Heating & Air dba Oneguy Heating & Cooling
"The American Standard small by-pass humidifier is an April Air humidifier, made by April Air for American Standard, its the exact same thing, works exactly like an April Air because it is an April Air. Humidifiers are not an independent working piece of equipment, it works with the furnace, it needs the heat from the furnace to evaporate the water, so if you have a programmable set back T stat and set to lower temps during your away time or sleep time you will get lower humidity. The more the furnace runs the higher your humidity levels will be. We installed exactly what he bought on Angie's List, offered to upgrade him to the large by-pass humidifier for additional 94.00 dollars but he declined. This customer gave us all A grades and for some reason a C on Professionalism but then a D grade for overall because he does not understand how the humidifier works. Where I went to school four A's and a C would be an A-, This customer gave us a poor review because he does not understand how the humidity is being created. The customer is not allows right, and in this case he is dead wrong!!!!"
Gina H.
Dec 2016
I was contacted right after I purchased a "deal". The work was scheduled for the next day. Contractor was friendly and performed the work as discussed.
Mark T.
Dec 2016
My house was more cool than usual today (12/14) and I found that my furnace was not operating correctly. Since this has happened previously, I figured today I would be buying a new furnace. Thankfully, I was dealing with professionals who were able to diagnose the problem and replace a faulty part rather than suggesting a replacement furnace.
Laurie O.
Nov 2016
Very well. Only suggestion is to review any maintenance required with the homeowner before leaving.
Nicole R.
Aug 2016
Right away, Lee impressed me when he arrived. I had done a TON of research on different units including talking to an out of state friend that owns his own HVAC company. In the end, I determined there are several great furnaces to choose from, but if the installation was done poorly, it wouldn't matter how great the furnace was. Lee came in, looked at our equipment, took some measurements, and had a quote for us with an hour after he left. His quote was cheaper than the one we received from the company that our Home Warranty company sent. By $2,000! He provided the same efficiency level furnace, a different brand, but both were rated quite well. He was able to meet our timing requirements, and installation went very smoothly. We could not be happier. We've had the furnace now for two months and haven't had a single issue. The weather has been pretty mild so it is hard to tell if the furnace is saving us on our bill yet, but we are quite pleased all around. I would HIGHLY recommend Lee and his crew. The service and attention were amazing and I would much rather work with a local business than some huge conglomerate that has to add all these fees and charges. Hire Lee and you will NOT be disappointed!
Sally M.
Aug 2016
I had purchased a coupon from another company and needed to service done ASAP. That company emailed me back and said it would be 5-6 weeks. So I got back on Angie's List and found this company. They did an AWESOME JOB ! I explain what I needed done and they were there the next day. The service tech was prompt and knew exactly what the issue was. Using the coupons is not always the best. One Guy Heating was less expensive than the other company who I purchased a coupon from. I will use them now each year to get the AC unit up and running !!!
Carl R.
Mar 2016
Fast and professional. Easy guys to work with.
Loren S.
Oct 2015
lucky for us that the technician was close to our house as our furnace was out and we have a baby. he came right after his other job, diagnosed the problem, went out for the right part, and fixed the problem. The problem was what I had researched based on the trouble code, and it's good that that's what he found as well. Not sure about price - charging the $69 trip charge in addition to the hourly rate seemed odd to me as he was 10 minutes away, but overall very happy with their availability. Quality-wise I'm sure it was a fine job
Kurt S.
Aug 2015
I would definitely do business with Lee and his company again. He did exactly what he said he was going to do when he said he would do it. Lee is a no BS type of guy. He's easy to talk to and gives it to you straight. Additionally, he installs American Standard products, which always rate at the very top of consumer reviews, which was important to us. The work was done very professionally and with attention to detail. We have a walk out basement style house, which required Lee and his crew to do a bit of digging out of the land surrounding the area because of its grade. Our landscaping had not yet been done, so the area around our house was nothing but loose dirt and mud whenever it rained. He and his crew covered all of our basement carpeting with tarps to keep the nasty stuff off of the carpeting.
We had a small issue once after the install was complete and Lee had a technician out within hours to correct it. A reasonable person knows that sometimes things can happen, how they are addressed is the important part. I can say that every time I called the company, I spoke directly with Lee. No voicemail or secretary. The warranty issue was addressed happily and at no charge. I like when a problem phone call is handled the same way as an estimate phone call. After building our house, we've unfortunately dealt with a lot of people who talk a big game and under deliver or never deliver at all. If you're looking for a company that does things the "old fashioned" way and installs top notch equipment, just call One Guy Heating & Cooling. You won't regret it.
We had a small issue once after the install was complete and Lee had a technician out within hours to correct it. A reasonable person knows that sometimes things can happen, how they are addressed is the important part. I can say that every time I called the company, I spoke directly with Lee. No voicemail or secretary. The warranty issue was addressed happily and at no charge. I like when a problem phone call is handled the same way as an estimate phone call. After building our house, we've unfortunately dealt with a lot of people who talk a big game and under deliver or never deliver at all. If you're looking for a company that does things the "old fashioned" way and installs top notch equipment, just call One Guy Heating & Cooling. You won't regret it.
Licensing
State Contractor License Requirements
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FAQ
Key Heating & Air dba Oneguy Heating & Cooling is currently rated 4.9 overall out of 5.
Yes, Key Heating & Air dba Oneguy Heating & Cooling offers free project estimates.
No, Key Heating & Air dba Oneguy Heating & Cooling does not offer eco-friendly accreditations.
No, Key Heating & Air dba Oneguy Heating & Cooling does not offer a senior discount.
Yes, Key Heating & Air dba Oneguy Heating & Cooling offers emergency services.
No, Key Heating & Air dba Oneguy Heating & Cooling does not offer warranties.