4.7 
222 *The Angi rating for Heating And Air Conditioning Service companies in Barnhart, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Barnhart, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on November 03, 2025
Serving Barnhart, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"A-ok! Dunn OneHour HVAC is always top notch!"
Serving Barnhart, MO and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"Customer service was very helpful, tech was able to quickly diagnose the problem and solve it. We signed up for their preventative service HVAC."
Serving Barnhart, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Emergency services offered
Warranties offered
"Liberty did a fantastic job identifying and rectifying airflow problems with our existing Hvac system that was installed less than two years ago by another company. They were punctual, responsive and incredibly knowledgeable. I highly recommend them."
+10
Serving Barnhart, MO and surrounding areas
Approved
In business since 1954
Free estimates
Emergency services offered
"I’ve used this company twice. My husband has a medical condition that is affected by heat. The first time the air conditioner wasn’t working they made every effort to assess the problem immediately when I explained the medical condition. At the time they corrected the problem I was advised the system was probably 20 years old and we may have to consider a new system soon. The second time I contacted Comfortable Carla’s was about 4-6 weeks later when the system wasn’t working again. This lead to a system replacement. I was provided with different options, my questions were answered and the installation was completed as quickly as possible, especially in view of my husband’s medical issue. The staff was was professional, efficient and kept me apprised all throughout the process. I highly recommend this company."
+1
Serving Barnhart, MO and surrounding areas
Approved
In business since 2000
Emergency services offered
Credit card accepted
"Had new hvac, furnace, and hwh installed. Furnace had a couple of air leaks between a coil and furnace which I fixed myself. Hvac was spot on. Hwh failed first inspection, but was corrected in same day. For the premium price paid, these issues should not happen. Quality 4.5 because of these issues, same goes for value. Customer service is very good. They are very professional, work looks very good, clean worksite afterwards. I would recommend, but don't think about negotiating price with them. Their labor is very high."
+14
Serving Barnhart, MO and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
"Logan was polite, & respectful completed the job in a timely manner. Cleaned up any mess that was made. I will definitely request Logan again for any additional appliance repair I may need."
Serving Barnhart, MO and surrounding areas
Approved
In business since 1982
Emergency services offered
Warranties offered
Founded in 1982. Team members that are drug tested and background checked insuring that the people in your home are safe. We specialize in repairing and replacing residential heating and air conditioning systems. "Fixed Right or It's Free"\nTechs available Sat & Sun call for appointment.
Serving Barnhart, MO and surrounding areas
Approved
In business since 2018
Free estimates
Credit card accepted
"Adam did the work in my home today. There were three heating and air-conditioning units which were checked out and some which needed some repair. I highly recommend him. Reasonable cost excellent knowledge and willing to take the time to do an excellent job."
Serving Barnhart, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Emergency services offered
"Wonderful experience with Gas Guru!s! My husband and I would highly recommend them! The owner was very nice, polite and did a great job on our gas fireplace."
Serving Barnhart, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Credit card accepted
"Local Air Duct Pros did an excellent job at my home in Austin. They explained everything clearly, worked efficiently, and left the place spotless. I can already feel the difference in the airflow. Definitely a 5-star service!"
From average costs to expert advice, get all the answers you need to get your job done.
Heat pumps are highly efficient and can help reduce heating and cooling costs. Learn about heat pump costs in St. Louis, Missouri, to set your budget.
When determining the AC coil cleaning cost in St Louis, MO, you’ll need to factor in the size, cleaning method, and type.
Heating and cooling system on the fritz? Discover the factors that go into HVAC repair costs in St. Louis, MO, and how you can save money on this crucial home update.
A central air system is great for someone looking to cool and heat their home all year round. Even if your home uses baseboard heating, you can still make the switch. Read on to learn more about adding central air to a baseboard-heated house.
Try these 12 top tips to keep your air conditioner working at maximum efficiency. Stay cool, and minimize energy costs with this expert air conditioning advice.
Learn how to save money on air conditioning costs this summer by following this handy guide all about your favorite cooling system.
