Energy Efficiency & Sustainability Solutions
Energy & Sustainability Advisory Services
Renewables & Decarbonization Support
Sustainable Building Certifications
Whole Building MEP Design & Maintenance
Smart Buildings
Design-Build & Installation
Maintenance & Service
HVAC & Mechanical
Electrical Services
Water Management
LED Lighting Services
Compliance, Capital Planning & Financing Tools
Financial Incentive Advisory Services
Energy Procurement
Greenhouse Gas Emissions Reporting
Industries Served
Since 1998, General & Mechanical Services has been recognized as a leading mechanical contractor in the Mid-Atlantic region. Based in Annapolis, MD, we provide design, repair, retrofit and maintenance services for properties in Maryland, Virginia, DC, Delaware, and Pennsylvania. Education, healthcare, commercial, and government facilities rely on us for our HVAC, mechanical, electrical, and plumbing needs. The professional & certified team at GMS is committed to providing the best and most cost-effective mission-critical infrastructure solutions to customers.
HVAC/Mechanical
Plumbing Services
Refrigeration
“We needed a solution that would take our data center into the future. GMS worked with us to design and install a cutting edge cooling infrastructure that will provide reliable chilled water year round from a geothermal ground loop that has a lifetime expectancy of 50 years. The N+1 redundancy built into the solution will ensure that should any part of the solution fail, cooling will continue to be funneled into the data center — giving our IT department the ability to support the growing needs of users for many years to come.”