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TRUSTED BY LONE TREE, CO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.3k+
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Lone Tree - Updated Nov 2026

Avatar for M & H Air, LLC
M & H Air, LLC
5.0(
18
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - InstallCentral A/C - Install+14 more

Serving Lone Tree, CO and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"I had an excellent experience with this HVAC company. Their team was highly professional, knowledgeable, and focused from start to finish. They took the time to explain everything clearly, completed the work efficiently, and demonstrated great attention to detail. It’s refreshing to work with a company that values quality, expertise, and customer service. I highly recommend them to anyone looking for reliable HVAC professionals."
M & H Air, LLC
Victory Outreach Church
2 neighbors recently requested a quote
Avatar for Air&Hvac Master
Air&Hvac Master
5.0(
14
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallCentral A/C - Service or Repair+3 more

Serving Lone Tree, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Air&Hvac Master is your go-to choice for Hvac and air duct cleaning in Denver. As an innovative service provider company, we are committed to creating a comfort, healthy and safe environment for your home. Contact us today for top-notch service.

Clogged AC coil
After cleaning
Air Duct Cleaning Project
Air Duct Cleaning Project
Coil after cleaning

+26

Response time10 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
4.9(
47
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairThermostat - Repair or Reprogram+2 more

Serving Lone Tree, CO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I had a great experience from start to finish with this company. They were able to install my new AC unit quickly, which I was thankful for, considering how hot it has been. Throughout the entire process, they were transparent with their pricing, explained everything clearly, and never made me feel pressured. Dylan and Tristan were incredibly knowledgeable, professional, respectful, and kind. They took the time to answer all of my questions and made sure I understood what was being installed and why. I was honestly pretty stressed about having to replace my AC unit, but they made the entire experience easy and worry-free. I would absolutely recommend this company to anyone looking for honest, reliable HVAC service. Their customer service and quality of work exceeded my expectations, and I couldn't be happier with the experience."
Boiler Repair/Replacement
Boiler Replacement and Repipe
Boiler Replacement and Repipe
Furnace, AC, Water Heater Replacement
Furnace Tune-up

+35

Response time6 hrs
Response rate100%
84 neighbors recently requested a quote
Avatar for Clean Air Genie, LLC
Clean Air Genie, LLC
4.9(
66
)
Air Ducts & Vents - Clean

Serving Lone Tree, CO and surrounding areas

Approved

In business since 2020

Free estimates

Small jobs welcome

"My experience with Clean Air Genie was great. They were professional and knowledgeable explaining everything to me clearly and provided pictures and videos before and after the work was done. My air ducts were pretty bad (hadn’t been cleaned in 10 years) and they were able to get them very clean and sanitized. I appreciate that their prices were transparent and fair for the work. I will definitely recommend!"
Additional Photos
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Additional Photos

+3

3 neighbors recently requested a quote
Recommended by5%of homeowners
Avatar for Mountain Pro HVAC Services, LLC
Mountain Pro HVAC Services, LLC
5.0(
126
)
Central A/C - Service or RepairElectric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For Business+4 more

Serving Lone Tree, CO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"MountainPro HVAC SERVICES is a company that stands out due to a number of core values and high standards as exemplified by owner, Adrian Vargas. Mr. Vargas will squeeze one more service call after a fully packed day due to his commitment to both new and loyal customers. Mr. Vargas always exhibits the utmost professionalism and expertise while answering customer questions after a grueling day of challenges and labor-intensive service calls. It is evident Mr. Vargas appreciates his customers and goes the extra mile to do an exemplary job. So grateful for his customer-oriented work ethic."
Maintenance Services
Maintenance Services
Maintenance Services
Maintenance Services
New AC / Furnace Install

+4

Response time11 hrs
Response rate92%
Recommended by100%of homeowners
Avatar for Heart Heating, Cooling, Plumbing & Electric
Heart Heating, Cooling, Plumbing & Electric
4.7(
92
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+7 more

Serving Lone Tree, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Heart is absolutely amazing! Look no further, as Heart is who you should choose to work with! They are very professional, punctual, and do everything right the first time. We have a couple of different areas Heart helped with, and so this review focuses on the HVAC work we needed, beginning with replacing our rooftop package unit. Every single person is phenomenal to work with, and very knowledgeable; starting from Mike setting up the appointment, Roberto coming out for the diagnostic, and then the multiple teams with Cody, Blake, Steven, Collin, and Cory working to get our unit replaced! I know it was much more involved than initially thought, and these guys were here doing all that they could to get our heat up and running again! They offered us heaters to keep us comfortable, and communicating and explaining what was going on every step of the way! We had an issue with the filter, and so Steven, Collin, and later Cody, came back a different day to create larger return vents for us to be able to replace air filters inside our home. They helped us so much, and removed shelving that was in the way too! We also needed our electrical panel upgraded, and so Cory will be helping us with that (thank you Cassandra for getting that reschedule). Heart also was able to have all of what we needed financed under one bill, which was a huge help! I cannot imagine going through the HVAC and electrical replacement with anyone else; these guys made it easy on me and kept my stress level down. My only regret is not having found them sooner back when we needed our water heater replaced. We will definitely keep Heart for any future issues we have, and keep with the membership program to have areas checked out regularly. Thank you to everyone at Heart--you all are truly amazing and we appreciate you so much!"
Additional Photos
Additional Photos
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Additional Photos

+24

8 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Bee There Heating & Air
Bee There Heating & Air
4.9(
75
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - Repair - For Business

Serving Lone Tree, CO and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Jason was early for the appointed time (not a window of 2 hours). Right on time. Worked efficiently, kept the area clean and was thorough in his work. He gave me a full report of what he found and it's importance. I will recommend him to friends and family in the area as a go to vendor for HVAC issues."
Littleton
Denver
Highlands Ranch
Littleton
Lakewood

+21

Response time3 hrs
Response rate88%
Recommended by97%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

While personal preferences widely vary, sleep experts say the best temperature for sleeping is between 60 and 67 degrees Fahrenheit rather than 78. If you do choose to sleep with your AC unit tuned to 78 degrees, you might want to use only a sheet or light blanket rather than a comforter. You might also consider installing a window unit in your bedroom so that you can be cooler in bed without wasting energy cooling the whole house.

If the air coming from your AC unit is cool but never quite cold, there are a few reasons this might be happening. For starters, it could signal that your refrigerant levels are low. If there are no other indications of this particular issue, like hissing noises or frozen refrigerant lines, anything from dirty filters to damaged condenser or evaporator coils could be responsible for the problem.

Yes, it’s important to turn off your AC sometimes to give it a break and prevent it from freezing up. If your AC runs all the time, your system’s parts will wear down quicker, which may mean that you need to replace it sooner. Plus, using your AC constantly uses more electricity and leads to higher energy bills.

Dirty filters are almost always the cause of poor airflow, so they should be regularly cleaned and then replaced as needed. The fan blades can also get dirty, so they should be cleaned when the unit is turned off. Make sure that the outdoor area around the back of the unit is unobstructed. Trees, shrubs, trash, and other objects could be too close to your unit.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

The Lone Tree, CO homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.