About GEM

With over 700 employees, 500 trucks (and counting), and regional offices in MA and RI, GEM has grown into one of the largest service companies in the United States today. Our 75 years of experience in the plumbing, electrical, and heating and cooling trades enables us to deliver superior service no matter the issue, and our reach allows us to be there when you need us most!

A Family Company Serving Millions of Neighbors In MA & RI

GEM Plumbing and Heating was founded in 1949 by Larry Sr, and Gloria Gemma, on the principles of family, community, courtesy, professionalism, and random acts of kindness. Brothers Larry, Lenny, and Eddy Gemma, in spirit, continue to lead the company with the same core values and principles. GEM is committed to delivering the highest quality services to homeowners and commercial clients throughout Rhode Island, Massachusetts, Southern New Hampshire, and Connecticut.

Areas We Serve

Different regions have different regulations, restrictions, and requirements when it comes to installations, repairs, and maintenance. That’s why the GEM experts at each of our local offices have a deep understanding of local code and the level of service your home needs. We have several branch offices that serve dozens of cities and counties in southern New England.