Case Studies

Temp Chiller 1

Installation of Temporary Chiller

GMS was awarded contracts to provide, install and maintain two temporary chillers, one 150 ton air cooled chiller and one 60 ton air cooled chiller.  The contracts were for six months to cover the hot summer months and maintain chilled water to two separate buildings at a government facility.  The buildings served different purposes, one […]

fort mchenry

Mechanical Cooling and Heating Upgrade to VRF System

The existing mechanical cooling and heating system in one of the buildings at Fort McHenry, a Historic National Monument, consisted of an oil-fired hot water boiler, hot water piping distribution system with base board radiators and fan coils. The boiler additionally provided heat for the domestic water heater. Cooling was provided by window units and […]


Installation of Condensing Boilers – GMS Mechanical Project

This mechanical project involved the removal of an existing Smith Boiler and its replacement with three slim design commercial, efficient condensing boilers from RBI. The customer chose these boilers because they are environmentally-friendly and meet green building certifications. The timeline was very tight, GMS had one month to mobilize, order, receive the equipment and perform […]

In a ditch

Underground Leak Repair

Initially the exact location of the underground leak was unknown at the Bladensburg Bus Depot. GMS excavated a trench approximately  20′ long, 8′ deep up to 6′ wide in order to expose the damaged 12” water line. The pipe was cut in order to remove the leaking section and was replaced with around 20’ of […]

York AHUs

Installation of Air Handling Units – Commercial Building

GMS provided a solution to replace two existing air handling units with new, more efficient 5-Ton York single stage cooling units with electric heat.  The customer was experiencing uneven heat distribution in the winter and insufficient cooling in the summer along with high electric bills which the new units will help to mitigate.

aircraft carrier guns

Naval Air Station in MD – Chiller Replacement

GMS was responsible for the mechanical, electrical and controls on this project to install a new air cooled scroll chiller.  The chiller was mounted on a concrete slab and hooked up to the existing glycol tank and chilled water supply & return piping. In addition GMS installed isolation valves, thermometers and insulation on all outdoor […]

Turbo-jet engine of the plane on close up

Aberdeen Proving Ground – Multiple Fan Coil Replacements

The GMS team has been working on the APG site for a number of years. We were invited to bid on this project by a team of engineers who hold a contract at the site. Prior to the start of the project, GMS worked with the customer on a post-award assessment to survey and evaluate […]

United States Naval Academy in Annapolis, Maryland

US Naval Academy Ward Hall

Ward Hall, located on the U.S. Naval Academy (USNA) in Annapolis, MD, needed to renovate their existing data center. This was driven by the age of the building in which the data center was housed and increasing demands on the IT department to support the growing technology requirements of the Academy’s student body and faculty members. As a leader […]

hospital building-infrastructure xsmall

Easton Memorial Hospital

An emergency call to the hospital uncovered an underground leak causing a high steam flow out of the open conduit vent in the boiler plant. GMS immediately provided a line size pipe to vent the steam out of the plant to the exterior. Subsequent inspection also found two additional steam leaks and that a building […]

Harbour School

The Harbour School

The Harbour School opened in 1982 with the mission to provide a supportive, caring and individualized education to students with learning disabilities, autism, speech language impairments and other disabilities like ADD/ADHD by assisting each child to attain academic and personal achievement and success commensurate with the child’s abilities. Personal achievement includes success in social, physical and vocational skills. The […]

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