TG Gallagher is a renowned mechanical contractor in New England, serving various sectors such as healthcare, higher education, and life sciences for over 75 years. Our expertise lies in the installation of HVAC, plumbing, fire protection, and refrigeration systems. What sets us apart is our commitment to customer satisfaction and employee success.

We believe in finding innovative solutions to meet our clients' unique needs. At TG Gallagher, our work goes beyond project completion. We offer 24-hour emergency support and our dedicated Service team ensures the ongoing maintenance and inspection of facilities, guaranteeing optimal performance.

We take pride in empowering our clients to make a positive impact on the lives of the people they serve. Based in Waltham, MA, our vast experience and dedication make us a reliable choice for all your mechanical contracting requirements. Join us in transforming the future with exceptional quality and unwavering commitment to excellence.

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