Get matched with top central a/c installers in O Fallon, MO

"Very impressed with the professional appearance and demeanor of the installers. They initiated a series of pre install checks around the home that solved some issues and found a few problems that needed to be solved before they started. On top of going the extra mile, the install was successful and I'm a very satisfied customer. The manager was responsive and accommodating. Highly recommend Dunn One Hour Plumbing, Heating and Air Conditioning."

"Installed ok and he left ! No complaints!"

"Great Experience. I was concerned about the 22 yr age of our air conditioner able to keep working and wonder if a long wait time to get a product shipped like refrigerators last year, I called for a quote and within a week it was installed and working! Installers worked tirelessly until their work was done, clean and neat!"

"The selection process took a long time to find the right plumber. I talked to Steve, he really made me feel at ease about the company. Plus there was a coupon on Angie's list for the work. Scott was the plumber that did the install. He was patient and explained everything he was doing. (I always watch over the guys shoulder to see what is being done.) Everything went perfect, removal, install, cleanup, etc. It is great to find this kind of company nowadays. Keep up the good work."

"Able to install on a timely basis. Friendly, clear, and reasonably priced."

"Glen the repair man was fantastic. Installed new kitchen faucet within one hour. Quality workmanship, clean and neat. It was an honor to meet this distinguished Marine Core Vet."

"Jacob and Cody have been amazing to work with. We originally hired them to repair our stairs and have since contracted with them to install our kitchen tile floor, install electric in our kitchen island and to repair some of our drywall. Their team is very professional, their estimates are accurate and they do quality work. We plan to hire them again when we remodel our bathrooms."

Wisemen Heating Cooling is a family owned company that focuses on tradition of craftsmanship and service. My father built a respected general contracting business that served our community with integrity and care. We are your best choice in St Louis and the surrounding communities for all your home improvement needs! We take great pride in every project we do and our customer's complete satisfaction is our top priority! Call us today for a free estimate!

"The workers arrived prior to the scheduled appt. which really worked for me. I'm pleased with the manner in which they performed the installation of the central air conditioning system. They were courteous and professional."

Looking for reliable HVAC service in St. Louis? Aire Serv of St. Louis is your local expert for residential and commercial heating and cooling. From emergency AC repair during humid Missouri summers to furnace maintenance before the winter chill, our professional technicians are available to keep your home comfortable. We pride ourselves on transparent, upfront pricing, no overtime charges, and the "Done Right Promise." Whether you need a system replacement, duct cleaning, or a routine tune-up in Fenton, Webster Groves, or Kirkwood, we are the team you can trust. Breathe easy with Aire Serv—your comfort is our top priority. Call us today to schedule your service!