Get it Dunn Right
Or Your Money Back

AC Installation in St. Louis

Trusted Air Conditioning Experts, Serving St. Louis

Your comfort is important; having an air conditioner properly installed and regularly tuned-up plays a big role in your ongoing comfort throughout Missouri’s hottest months. When you need an air conditioner installed in a new home or property, or if you’d like to upgrade your old AC to a newer, more energy-efficient model, call Dunn Plumbing, Heating & Air Conditioning, LLC. We offer a full range of AC services, including AC installation, in St. Louis, Mehlville, Ballwin, and Affton. Our technicians stand behind everything they do with a 100% customer satisfaction guarantee; if you’re not completely happy with our work, we’ll make it right or refund your money—no questions asked.

Call (314) 476-9606 or contact us online to book your appointment today.

Types of ACs We Install

Our team is fully trained and capable of installing all types of air conditioning systems from the industry’s leading brands. We are proud Trane Comfort Specialist™ dealers and offer a selection of products from Trane as well as several other HVAC brands, such as Carrier, Rheem, and Lennox.

Our team can install any of the following AC systems:

  • Central air conditioners
  • Ductless mini-splits
  • Rooftop units
  • Packaged and commercial ACs
  • Zoned systems
  • Window AC units

If you are unsure which type of air conditioning system best suits your needs, our expert installation technicians can evaluate your space, your needs, and your comfort preferences, as well as your budget and ongoing cost concerns. From there, they can provide you with an honest and free recommendation and estimate.

Available when You Need Us

We understand that a reliable air conditioner is critical; to that end, we are available for same-day appointments and even provide 24-hour AC repairs, 7 days a week, 365 days a year. To make your new AC installation easier and more affordable than ever, we even offer payment plans and flexible financing through Greensky.

To learn more, or to schedule AC installation in St. Louis or the surrounding areas, contact Dunn Plumbing, Heating & Air Conditioning, LLC at (314) 476-9606 today!

Customers Love Us

See What They Had to Say
  • “First of all, I've been using this company for years and since they continually serve me well I decided to post online. Brett and his team are extremely knowledgeable of HVAC. He showed me how to save ...”

    - A Satisfied Customer
  • “Brett with Dunn installed a new HVAC system in my home in December of 2010. He presented several options to me, along with rebates, incentive programs and financing options. We chose to install a ...”

    - A Satisfied Customer
  • “Dunn replaced a water heater and an AC/heat unit. Dunn and its team provided optimal customer service. Brett was detailed about the unit’s function and most importantly, the TOTAL cost, which ...”

    - Juan G.
  • “Last year we found out we needed a new AC unit but waited until this year to fix it. We went through Home Depot to find a place and they gave us Dunn Heating & Cooling. I am glad they did. Scott came ...”

    - Elaine S.
  • “Brett is very knowledgeable in this field and is a great problem solver. He was able to fix our system cheaper and with better quality than the other companies who had looked at the same system. Out ...”

    - Paul W.
We Care About Our Customers See What We Have to Offer