
Serving Normandy, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"A-ok! Dunn OneHour HVAC is always top notch!"


*The Angi rating for Heating And Air Conditioning Service companies in Normandy, 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 Normandy, 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 May 31, 2026

Serving Normandy, MO and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"A-ok! Dunn OneHour HVAC is always top notch!"


Serving Normandy, MO and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1979
Free estimates
Emergency services offered
"I always recommend Anton's to family and friends who need HVAC services. Their prices are reasonable, and their service is top notch! All of their technicians are very professional and considerate and they don't try to sell you things you don't need. Ronan just came out this morning to do our annual A/C inspection. The service was excellent as always. He took the time to explain everything and made recommendations. I never felt pressured, and I trust this company to take care of my HVAC needs. They've got a customer for life!"





+18

Serving Normandy, MO and surrounding areas
Approved
In business since 2009
Warranties offered
Credit card accepted
"They were professional from the phone call to the installation. He had everything he needed to replace the hot water heater and proceeded. I would definitely recommend Hosack Plumbing."





+2

Serving Normandy, MO and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"I finally found an HVAC technician that really understands HVAC. DT Restoration will be my service company from now on. Thank you Home Advisor."


Serving Normandy, MO and surrounding areas
Approved
In business since 2000
Emergency services offered
Credit card accepted
"A little on the expensive side, but the technician showed us several ways to save money by combining services."





+14
Serving Normandy, MO and surrounding areas
Approved
In business since 2010
Credit card accepted
Customers say: Quick response
"He was very courteous and stated his price up front. Was very knowledgeable. Would recommend him to anyone needing HVAC repair."

Serving Normandy, MO and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"I'll give more updates as the moles and yard damage actually disappear, and after the attic insulation and duct sealing jobs are done."




Serving Normandy, MO and surrounding areas
Approved
In business since 2017
Emergency services offered
Warranties offered
"Frankly, I rarely give reviews but this encounter warranted it. Here we go: On a 100 degree, sweltering Saint Louis afternoon, my 23 year old HVAC system finally called it quits. I knew I was looking at a full replacement and a repair would simply cost more money in the long run as the replacement was imminent. I did my due diligence and got multiple bids. I contacted John Hively and he said he could make it out that night (it was already 6:00 when I contacted him!) He showed up just 30 minutes later and did HIS due diligence checking all the components of the HVAC system before offering his diagnosis, verdict, and the cost of parts and labor. He was incredibly knowledgeable and his proposal was very reasonable considering the extent of the project and he was very competitive against the several other bids I had received - not to mention his warranties were unrivaled. Now, this is where the story gets really good... Because of the heat and my staying at a hotel because my house was 86 degrees, he rushed the appointment... While everyone else was giving a 7-14 day approximation, he was back the next day to drop of equipment and then the following day for the install. From 72 hours of making the call I had cool air again. He estimated a 4-6 hour completion time and his *extremely professional* crew was done in 5. They gave me a run-down on maintenance procedures, double checked everything to make sure the system was functioning as it should be, and were on their way. I can confidently state that John Hively provided the best residential service of ANY kind I've received since being a homeowner. I won't even waste time with bids on any HVAC needs again because Hively Heating and Cooling is my new go-to HVAC service provider. Do yourself a favor and call John. - A very happy homeowner"




Serving Normandy, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2025
Free estimates
Credit card accepted
"Local Air Duct Pros did an outstanding job! The team was professional, punctual, and very thorough. I noticed a huge difference in air quality right away. Highly recommended!"

Serving Normandy, MO and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"They did a fabulous job in cleaning all the vents in the house. The entire crew was very professional and treated our home with care. Even our dog loved them! We highly recommend using them!"





+21
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