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AC Maintenance & Tune-Up in St. Louis, MO

Delivering Solutions to Your Air Conditioner Challenges

Since 2003, Dunn Plumbing, Heating & Air Conditioning, LLC has served the Greater St. Louis Area as an air conditioner contractor and, more so, as an overall HVAC/mechanicals contractor, handling residential and commercial heating, ventilation, air conditioning, indoor air quality, and plumbing installation needs across the region.

We’re experts in AC maintenance, offering professional tune-ups in St. Louis, Mehlville, Ballwin, Affton, and the entire St. Louis region. All Dunn Plumbing, Heating & Air Conditioning, LLC customers receive same-day service with upfront pricing and a 100% satisfaction guarantee. Our technicians are all members of qualified trade associations, rigorously trained, professional, courteous, and uniformed.

Call (314) 476-9606 or contact us online to schedule your annual tune-up & preventative AC maintenance in St. Louis, MO!

What Are the Benefits of AC Maintenance?

You may not really think about your air conditioning system too much—unless it breaks down. But scheduling routine AC maintenance is extremely important, not only for your overall comfort but also for your wallet.

Some of the benefits of annual or semi-annual AC tune-ups include:

  • Improved energy efficiency
  • Reduced utility bills
  • Greater comfort throughout your home/business
  • Reduced likelihood of breakdowns
  • Fewer AC repairs
  • More even cooling and fewer “hot spots”
  • Longer air conditioner lifespan

Professional AC maintenance can help you save money in the short-term—on your monthly cooling costs—and in the long-run by reducing the overall number of problems with your system and extending its lifespan, meaning you can wait longer to have it replaced.

Committed to Your Complete Comfort & Satisfaction

Whether your home or business is too cold or too hot, Dunn Plumbing, Heating & Air Conditioning, LLC offers heating and air conditioning services to get you back in your comfort zone quickly and affordably. We’ve become one of the best contractors in the St. Louis area, serving residential customers with superior products and professional, ethical service.

When you need AC maintenance in St. Louis or any of the surrounding communities, just give us a call! We always arrive on time, ready to get to work. Our goal is to minimize downtime and provide cost-effective, long-lasting cooling solutions. We specialize in AC repair, installation, and maintenance of all types of AC systems, including traditional air conditioners, ductless mini-splits, rooftop units, and more.

Schedule your appointment today; call (314) 476-9606 to get started.

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.
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