Plumbing systems are critical to a buildings operation and are an essential component of maintaining a sanitary and healthy building environment. P.J. Kennedy & Sons was founded as a plumbing company over 90 years ago and performs all phases of plumbing. From distribution piping of clean water to the safe transportation of unwanted waste, our team of CAD/BIM designers, Project Managers and Union Plumbers have the skills and expertise required to design, prefabricate and coordinate the installation of Plumbing systems for virtually any project.

Founded in 1925, P.J. Kennedy & Sons is a 3rd generation business. Our core principal has always been to treat our employees and our customers like they're one of our family. We pride ourselves on building real relationships, and have a well earned reputation for integrity, quality and performance.

With a pre-fabrication facility and 24-hour service team for emergencies, we’re equipped to take on all of our client’s mechanical needs at every stage.

With decades of experience and the latest industry technology, P.J. Kennedy & Sons is dedicated to the success of every project. We’re masters at collaborating with other trades to get jobs done on time and on budget.

Plumbers UA Local 12 Boston Logo

Proud to be a union contractor signatory to

Plumbers & Gasfitters UA Local 12

Tell us About Your Next Project

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"When I have P. J. Kennedy & Sons on one of my projects, I know that their work will be done right; every one of their professionals is knowledgeable, experienced and a real team player and will go out of their way to make the project a success."

James Driscoll
Gilbane Building Company

"P.J. Kennedy & Son's work on recent Plumbing and HVAC projects was performed in a highly professional manner. All paper work was completed in a timely and orderly fashion and their field personnel were competent and highly qualified, which greatly contributed to successfully finished projects."

Steve Fenton
Suffolk Construction

"P.J. Kennedy & Sons have always responded promptly and professionally to address the critical needs of the State Police infrastructure to support the 24/7 critical Public Safety needs of our facilities including the Barracks, State Police Crime Labs, General Headquarters Complex and Training Academy."

Paul Hession, P.E.
Director of Facilites and Capital Projects, MA State Police