• Thomas G. Gallagher, Inc.

    • Div 15 Mechanical
    • Subcontractors
    109 Smith Place
    Cambridge, MA 02138
    (617) 661-7000

    About Us

    TG Gallagher is the leading provider of mechanical construction and maintenance services throughout New England. We install HVAC, plumbing, fire protection, and refrigeration systems. Once read more
    • About

      TG Gallagher is the leading provider of mechanical construction and maintenance services throughout New England. We install HVAC, plumbing, fire protection, and refrigeration systems. Once construction is complete we provide preventative maintenance and 24-hour emergency service. With all three trades and a prefabrication shop in-house, we streamline our clients’ mechanical system needs.

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