Cornerstone Heating & Air Conditioning: Thurmont, MD's Trusted HVAC Partner
Cornerstone Heating & Air Conditioning in Thurmont, MD provides heating and cooling solutions for homes and businesses across Frederick and Washington Counties. Founded in 2005, this local company brings nearly two decades of hands-on experience to every job, from routine maintenance to emergency repairs. They understand the specific climate challenges in Maryland, where humid summers and cold winters demand reliable HVAC systems.
Business Overview
Cornerstone Heating & Air Conditioning operates as a family-run business focused on residential and light commercial clients. The team consists of factory-trained technicians who are familiar with a wide range of systems, including newer energy-efficient models. While standard hours run Monday through Friday 9 AM to 5 PM and Saturday 9 AM to 1 PM, they offer emergency service for urgent heating or cooling breakdowns, recognizing that a failed system can't always wait.
Key Services
The company handles all major aspects of HVAC care:
- Installation and Replacement: Setting up new heat pumps, boilers, geothermal systems, and air conditioning units, with advice on the best fit for local homes.
- Repair Services: Fixing issues with furnaces, air handlers, thermostats, and other components to restore comfort quickly.
- Maintenance Plans: Regular check-ups, cleanings, and tune-ups to improve efficiency and prevent unexpected failures.
These services address common homeowner needs like reducing energy bills, improving indoor air quality, and extending system life.
Areas Served
Cornerstone Heating & Air Conditioning serves numerous communities in the region, including Thurmont MD, Hagerstown, Halfway, Linganore, Robinwood, Brunswick, Walkersville, Fountainhead Orchard Hills, Middletown, Boonsboro, Saint James, Maugansville, Smithsburg, Braddock Heights, Jefferson, Myersville, Bartonsville, Monrovia, New Market, Keedysville, and Highfield Cascade. Their technicians know the area's housing styles, from older historic homes to newer developments, which helps in diagnosing problems and recommending solutions.
Company History
The business started in 2005 when Michael Grissom, after years of working for others, decided to build his own company. He began learning the trade in VoTech during high school, attended trade school, and worked his way up from basic tasks to owning a business. This journey gave him a practical understanding of HVAC systems from the ground up. The company has grown steadily by focusing on doing things right the first time and building trust with customers.
Leadership
Owners Michael and Tina Grissom run Cornerstone Heating & Air Conditioning as a hands-on operation. Michael brings over 28 years of total experience in HVAC service and sales, having started in the field as a teenager. His background allows him to guide the team in both technical work and customer service. The Grissoms are local residents who understand the community's needs, and they enjoy meeting customers and hearing their stories.
Specialties & Highlights
- Deep Local Experience: Serving Frederick and Washington Counties for 18 years, with knowledge of local climate and building types.
- Factory-Trained Technicians: Staff trained on the latest HVAC technologies and methods.
- Energy-Efficient Focus: Emphasis on solutions that save money and reduce environmental impact.
- Family-Owned Approach: Personalized service from owners involved in daily operations.
- Broad Service Range: Skilled with heat pumps, boilers, geothermal systems, and standard air conditioning units.
Why Locals Choose Cornerstone Heating & Air Conditioning
Residents and business owners in Thurmont, MD and surrounding areas turn to Cornerstone Heating & Air Conditioning for reliable, quality HVAC work. The company's long-standing presence since 2005 shows stability and commitment. They combine technical expertise with a straightforward, friendly manner, avoiding unnecessary upsells. Their focus on doing the job correctly, backed by decades of combined experience, makes them a go-to choice for heating and cooling needs in the region. For dependable service from a local team, Cornerstone Heating & Air Conditioning in Thurmont, MD stands out as a trusted partner.
Contact Information
Cornerstone Heating & Air Conditioning
: Thurmont, MD 21788
: http://www.cornerstone-hvac.com
Business Services
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
Business Location & Hours
| Mon: | 9:00 AM - 5:00 PM |
| Tue: | 9:00 AM - 5:00 PM |
| Wed: | 9:00 AM - 5:00 PM |
| Thu: | 9:00 AM - 5:00 PM |
| Fri: | 9:00 AM - 5:00 PM |
| Sat: | 9:00 AM - 1:00 PM |
| Sun: | Closed |

















