Why TG Gallagher

TG Gallagher is the leading provider of mechanical construction and maintenance services throughout New England.

One Stop: Systems and Service

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.

The Most Challenging Projects are our Specialty

If the job is complex and the schedule is difficult, we are the company to call. Our highly skilled and experienced professionals excel in occupied facilities, busy campus-like environments, highly technical lab facilities, and sensitive patient environments. Our attention to detail and innovative building solutions have been proven time and again within high-end, critical facilities for clients like Harvard University, Children’s Hospital, Brigham and Women’s Hospital, and Dana Farber Cancer Institute.

Efficient Process and Product

TG Gallagher leads the industry in building technology and lean processes. On-screen take-off, 3D and 4D modeling, Trimble Total Station technology - all of these help streamline our construction process. Models are downloaded to our Trimble units to layout hangers and sleeves in the field, and simultaneously detailed drawings are sent to our 40,000 SF pre-fabrication facility to be prepared for field installation. We equip our project managers and field foremen with tablets to ensure that the latest information is available in real time on site, which improves safety and quality while eliminating waste.

A Valued Partner

In business for 79 years, TG Gallagher has worked with some clients since our inception. We serve as a long-term partner with our clients’ best interests in mind, whether we are working on a design-build, design-assist, or design-bid-build arrangement. We value the mutual respect and collaboration that we share with the architects, engineers, general contractors, and end-users that are integral to every project’s success.