Shawn Guertin

Thomas G. Gallagher, Inc. provides mechanical contracting services. It specializes in heating, ventilation and air conditioning, plumbing, fire protection, refrigeration, maintenance, design-build, design-assist, building information modeling, pre-planning, budgeting, system analysis, and deferred maintenance planning. The company was founded by Thomas G. Gallagher in 1940 and is headquartered in Cambridge, MA.