General & Mechanical Services

General & Mechanical Services (GMS) is a commercial mechanical contractor in Annapolis, working since 1998 for healthcare, education, government and commercial clients across Maryland, DC and Virginia. It designs, builds and maintains commercial HVAC, plumbing, indoor air quality, data center cooling and commercial refrigeration systems, including ductless and ducted VRF installations and boiler work, with design-build services available. Operational assessments and energy audits are part of the offer, and emergency service is available 24/7 for heating and cooling failures. Its commercial plumbers are licensed. Mission critical HVAC, mechanical, plumbing and electrical systems are its specialty, from cooling towers and chillers to pumps. This is a business-focused firm, not a home comfort installer. Rated 3.0 from 4 Google reviews, 2 of them five stars and 2 one star.