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.

Skilled employees

Trucks on the Road

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.

Corporate Office

1 Wellington Road
Lincoln, RI 02865

Branch Office

375 Paramount Drive
Raynham, MA 02767

Branch Office

8 Great Western Road
Harwich, MA 02645

Branch Office

13 Colton Road
East Lyme, CT 06333

Branch Office

117 Long Pond Road,
Suite A
Plymouth, MA 02360


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Community Involvement

Committed to serving our local communities.

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Our Partners

We’re proud to partner with the world’s best in-home services.

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Contact Us

We are here to help and we look forward to hearing from you.


Committed To Our Community

Our neighbors are important to us, and we’re determined to make life better for them today and in the years to come.

GEM is delighted to serve Rhode Island and Massachusetts residents in a number of ways, from education and fundraising to support our most vulnerable. Learn more about what we’ve been up to — take a peek at GEM in the community.

An Eye On Innovation And Service

Our goal is to stay true to our roots while we work to improve our service. We offer tailored memberships to help you save time and money on routine maintenance, plus access to priority service and special discounts. Our aim is to make it as easy as possible for you to take care of your home — find the Home Advocate membership that suits you.