News & Special Offers

We just celebrated a milestone most small companies never reach, As of August 17, 2019 we have been in Business for 14 years!! Hard to believe!! We owe it all to our loyal Customers that keep coming back time and time again and recommending us to their Family and Friends. We Thank you very much for the 1st 10, now it time for bigger and better things for the next 10 years!

 

Special Service Offer

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

Call Us Today!

Cornerstone Heating & Air Conditioning, Inc.

101 Radio Ln 101

Thurmont, MD 21788

 

Phone: 240 674-3100

Email: mike@cornerstone-hvac.com

 

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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