Cornerstone Heating & Air Conditioning

Cornerstone Heating & Air Conditioning, Inc. is a trusted HVAC provider based in Thurmont, MD, with over 30 years of experience in the industry. Founded by Michael Grissom in 2005, our company has built a reputation for delivering high-quality services at affordable rates. We serve Frederick and Washington Counties and take pride in ensuring our clients' indoor comfort all year round.

Our team is composed of experienced technicians who are factory trained and knowledgeable about the latest innovations and advancements in the industry. We offer a comprehensive range of heating and cooling services for residential and light commercial clients, including oil heat, boilers, geothermal systems installation, gas heat, heat pump installation, and air conditioner repair.

Our Services

At Cornerstone Heating & Air Conditioning, Inc., we offer a variety of services to keep your home or business comfortable and energy-efficient. Here are some of the services we provide:

*Heating System Repair*: Our team of experts can diagnose and repair any issue with your heating system. We understand the importance of having a reliable heating system during the winter months, and we work quickly to get your system up and running.

*Geothermal Systems Installation*: Geothermal systems are an energy-efficient way to heat and cool your home. We specialize in the installation of these systems and can help you determine if a geothermal system is right for your home.

*Air Conditioning Repair*: Our technicians are skilled in diagnosing and repairing air conditioning systems. We can help you keep your cool during the hot summer months.

*Heat Pumps*: Heat pumps are an energy-efficient way to heat and cool your home. We install and service heat pumps, and our team can help you determine if a heat pump is the right choice for your home.

Meet Our Team

Our team is the backbone of our company. Here are some of the key members of our team:

*Michael Grissom, Founder and President*: Michael founded Cornerstone Heating & Air Conditioning, Inc. in 2005 after a long career in the industry. He is a master troubleshooter and has an exceptional ability to diagnose and repair any HVAC issue. Michael is an expert in oil heating, boilers, hot air furnaces, heat pumps, and air conditioning.

*Dave, Lead Duct Work Technician*: Dave has been with Cornerstone since 2009 and is our lead ductwork technician. He has a wealth of experience in the industry and is skilled in creating custom sheet metal fabrications for our clients.

Contact Us

While we do not have a contact section, you can reach us by phone at 240-674-3100 to schedule an appointment or inquire about our services. We look forward to serving you!