Mark Downing

Owner

LICENSES: MASTER PLUMBER, GAS SERVICE

With 43 years of experience in the HVAC industry and 38 years as the founder of GSMS, Mark is passionate
about the mechanical side of the trade. His dedication to quality and craftsmanship has shaped the company’s
reputation for excellence. When he’s not ensuring top-notch service, Mark enjoys traveling the world and
discovering new places. For Mark, what makes GSMS special is the incredible team behind the work, and he
wants clients to know that GSMS always stands behind every job they do.

Name: Mark Downing

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