Based in Annapolis MD, General & Mechanical Services (GMS) is a leading provider of mission- critical infrastructure solutions and services nationwide. Since 1998, GMS has provided its customers with a “one-stop-shop” for all of their mechanical infrastructure needs including the supply, installation, testing and maintenance of industrial HVAC, mechanical, electrical and plumbing solutions.
The professional & certified team at GMS is committed to providing the best and most cost-effective solutions to its customers.

Commercial HVAC
Heating and air conditioning services to help boost productivity & efficiency and reduce costs

Commercial Plumbing
Plumbing and piping expertise for your facility’s needs, no matter how big or small

Data Center Cooling
Assuring uptime with energy-efficient data center cooling and infrastructure solutions

3D Scanning
New 3D Scanning Services save time and money

Design Build Services
Your one-stop-shop to design, engineer, install, service and retrofit the systems you need.