Our certified HVAC technicians stand behind their work. We will assist you in the planning, installation and modernization of your climate control control system, providing energy efficiency tips whenever possible.


Here are just a few examples of the services we provide: 

  • Maintenance and repair
  • New installation and replacement
  • Radiant floor heating
  • Central heating
  • Radiators
  • Ventilation and air conditioning systems
  • Heat pumps and A/C
  • Geothermal
  • Hot water boilers, Steam heating
  • Residential and Light Commercial work

To learn more about what we offer or discuss your climate control needs, please email us or call us at 240 674-3100.


Call Us Today!

Cornerstone Heating & Air Conditioning, Inc.

101 Radio Ln 101

Thurmont, MD 21788


Phone: 240 674-3100



Cornerstone Heating & Air Conditioning, Inc., Residential Air Conditioning Contractors, Thurmont, MD

Special Offers

Upgrade to a new energy efficient air conditioning unit and receive a 1 year Labor warranty on any installation performed by Cornerstone Heating & Air Conditioning, Inc.

Service Visit Discount

Save 15% off your next service visit. Contact us for details.

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