About GMS

GMS has been in business since 1998 and is owned and operated by Greg Lilly. We pride ourselves on the quality, passion and experience of our technicians and project managers. Our commitment to providing the best and most cost-effective solutions to our customers is what drives GMS to encourage individual and company growth through training and a team-centered working style.

Today, GMS runs commercial mechanical installation projects across the USA while keeping our service and break fix work locally within the DC, MD, VA and DE areas.

“Quality means doing it right when no one is looking” – Henry Ford

Quality with a Personal Touch

GMS’ current line of services encompasses a wide range of commercial mechanical installations, maintenance and repairs. GMS has adapted and expanded on our services as a direct result of customer needs and requirements. “Working with our customers, ” says Lilly, “keeps us in touch with their sometimes complex infrastructure and building needs.” See an overview of our commercial mechanical services below:

  • Data center power and cooling solutions e.g. CRAC and in-row units, system monitoring and reporting, install and factory service on UPS systems
  • HVAC solutions e.g. AHUs, RTUs, hot water heaters & split systems, emergency repairs and preventive maintenance
  • Central plant solutions e.g. chillers, boilers, cooling towers and R-Stamp repairs with certification from the National Board of Boiler and Pressure Vessel Inspectors
  • Plumbing solutions e.g. backflow testing, repairs and installation; drain cleaning and energy efficient system upgrades for tank-less water heaters, low flush urinals, etc.
  • Medical gas piping installation

 

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