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Ensuring Proper HVAC Installations in St. Louis

Installed heating and air conditioning systems are not delivering the amount of efficiency and comfort the manufacturer designed them to be capable of delivering. Sounds crazy, right?

Well, even a brand-new furnace or air conditioner keeping your house comfortable could be costing you way more than necessary to operate. Most likely, the reason is because the previous HVAC installer didn’t install the system correctly. Yes, it is true; the majority of HVAC technicians do not install the systems correctly and numerous studies prove it.

At Dunn Plumbing, Heating & Air Conditioning, LLC, our experienced and highly trained St. Louis HVAC technicians will inspect your unit to ensure it is properly installed to deliver the maximum amount of efficiency and comfort.

We welcome you to consider signing up for our maintenance plan or benefiting from a free estimate should you need a new unit.

For more information, or to schedule an assessment, call (314) 476-9606 or contact us online. We also serve customers in Mehlville, Ballwin, Affton, and throughout the St. Louis area.

Customers Love Us

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  • “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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