We’re committed to our cities and towns, and we’re proud to provide our services to government bodies through public school projects, servicing Logan Airport and other Massport needs, courthouses and other projects for the Commonwealth of Massachusetts. Recently commissioned for the brand new Lowell Justice Center, we’re among the state’s most trusted contracting firms.

With a pre-fabrication facility and 24-hour service team for emergencies, we’re equipped to take on all of our educational client’s mechanical needs at every stage. We have many long-term relationships with our education customers.

Family owned and operated for 3 generations, we treat our employees and our customers like one or our family. Every part of our team from our office staff to the workers in the field are dedicated to the overall success of each educational project we’re a part of.

Our customers tell us what sets P.J. Kennedy & Sons apart, is our decades of experience, skilled union employees and our reputation for reliability. We’re masters at collaborating with other trades to get jobs done on time and on budget.

Local 537 Pipefitters Union Logo

Proud union contractor

Pipefitters Local 537

Plumbers UA Local 12 Boston Logo

Proud union contractor

Plumbers Local Union 12

Tell us About Your Next Project

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Our Mechanical Contracting Services Include:
  • HVAC

    Design, prefabricate and installation of HVAC and piping systems.

  • Plumbing

    Design, prefabricate and installation of plumbing systems. 

  • BIM/Pre-Fabrication

    Using BIM software, we ensure project design and timing is coordinated.

  • Building Controls

    Building control design and installation. New construction or retrofit.

  • Maintenance

    Preventative maintenance contracts

  • 24 Hour Service

    Emergency plumbing, heating and air conditioning service.

"Their entire staff performs their work in the most professional manner, great attitude, superior workmanship, communication, cooperation and willingness to be a team player with all members of the Massachusetts State Police.  "

Paul Hession, P.E.
Massachusetts State Police

"From the Plumbers and Pipefitters in the field to the Project Managers and Office Staff your entire staff was exceptional, and the quality of the workmanship was top notch."

William Clark
Facility Engineer, Mass DOT

"P.J. Kennedy & Sons maintains a high caliber of professionalism. I would like to thank them personally for the quick response time and job well-done, particularly on emergency cases. I look forward to working with them again. 

Ali Abbas Ali
Massachesetts Port Authority