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Middletown, MD

MD HVAC License #7732

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Advanced Service Homepage, Frederick MD

Since 1991 Frederick County residents have trusted Advanced Service for all of their cooling and heating needs.

  • We repair ALL brands and models of cooling and heating equipment
  • We provide a one year warranty on ALL repairs
  • We perform routine service to keep your system running at top efficiency, and help avoid future repairs
  • We offer free second opinion on "Dead" Systems
  • We design and install replacement systems
  • We design and install systems and duct-work for new home construction or remodeling
  • We have a fully equipped duct-work sheet metal shop




We offer preventive maintenance agreements to provide the routine maintenance to your cooling

and heating system to make your family feeling more comfortable at home than ever. more


These are a few of the variety of products in which Advanced

Service Air Conditioning And Heating offer to homeowners. more

"I would like to take this opportunity to thank you for your years of excellent service. Since you have installed our Trane heat pumps your commitment to servicing our needs is outstanding. Thank you also for the work you did on our gas logs. It is reassuring to know that there is someone that you can trust to do excellent work."

Ed T., Middletown, MD

"Advanced Service Air Conditioning and Heating has provided us with outstanding service. Simply stated the work is good, the prices are good, and our heating and air conditioning systems are working very well. We couldn't be more pleased."

Roberta B., Middletown, MD