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50+ Years
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Emergency
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Expert HVAC & Plumbing Services for Commercial Projects
Since 1925, PJ Kennedy & Sons has established itself as a trusted leader in mechanical contracting services. As a third-generation family-owned business, we combine decades of hands-on experience with a commitment to innovation and partnership. Our team specializes in delivering HVAC installations, plumbing systems, and maintenance solutions tailored to the unique demands of commercial projects. With a legacy of excellence spanning nearly a century, we serve education, government, residential, and corporate markets across the Northeast.

Our union-certified technicians prioritize safety, precision, and client collaboration to ensure every project meets exacting standards. Backed by long-standing relationships with industry partners and a dedication to evolving with technological advancements, we remain a cornerstone of reliability for complex mechanical needs.
Services
HVAC Installations Plumbing Systems Service & Maintenance Energy-Efficient Solutions Boiler Maintenance Preventive Maintenance HVAC Repairs Plumbing Installations Boiler Replacements Mechanical Contracting
Details
  • Year established: 1925
Highlights and features
  • We have over 95 years of experience in mechanical contracting.
  • Our family-owned business emphasizes a team approach for project success.
  • We serve diverse markets including education, government, and residential.
  • Our union-certified technicians ensure high-quality workmanship.
  • We provide 24/7 emergency service for critical infrastructure needs.
What people say
Exceptional quality of work Prompt and professional service Commitment to project success Professional manner Team-oriented approach
Services
HVAC Installations
We design and install energy-efficient HVAC systems for commercial buildings, ensuring optimal performance and compliance. Our solutions integrate seamlessly with existing infrastructure while prioritizing sustainability and cost-effectiveness. With decades of experience, we deliver tailored systems that meet the unique demands of education, government, and corporate clients.
Plumbing Systems
Our full-service plumbing solutions include system design, installation, and upgrades for new and existing commercial properties. We specialize in complex projects requiring adherence to strict safety and regulatory standards. From initial consultation to final implementation, our union-certified technicians ensure reliable, code-compliant results.
Service & Maintenance
We provide comprehensive maintenance programs to extend the lifespan of mechanical systems while minimizing downtime. Our proactive approach includes routine inspections, repairs, and emergency response for HVAC and plumbing systems. Clients benefit from tailored service plans that align with operational needs and budget requirements.
Energy-Efficient Solutions
Our team implements cutting-edge energy-efficient mechanical systems that reduce operating costs and environmental impact. We assess existing infrastructure to identify optimization opportunities, from HVAC retrofits to smart controls. These solutions help clients achieve sustainability goals without compromising performance or comfort.
Boiler Maintenance
We offer preventive maintenance and emergency repairs for commercial boiler systems, ensuring safe and efficient operation. Our technicians are trained to service diverse boiler types and configurations, with a focus on prolonging equipment life and maintaining compliance with industry standards.
People
Paul Kennedy Jr.
President
Third-generation leader with decades of experience in mechanical contracting, Paul Kennedy Jr. oversees operations while upholding the family legacy of integrity and excellence in commercial HVAC and plumbing projects.
Patrick Kennedy
Co-Owner
As co-owner and third-generation leader, Patrick Kennedy manages project execution and client relations, leveraging his expertise in mechanical systems to ensure adherence to quality standards and project timelines.
Questions
What services does P.J. Kennedy & Sons offer?
We provide HVAC installations, plumbing systems, maintenance, and mechanical contracting services for commercial projects in the Northeast.
Which areas do you serve?
We primarily serve the Northeast, with a focus on Massachusetts, including Boston and surrounding communities.
Do you offer emergency services?
Yes, we provide 24/7 emergency service for critical HVAC and plumbing needs.
How long has your company been in business?
P.J. Kennedy & Sons has been serving commercial clients since 1925, spanning three family generations.
What industries do you work with?
We specialize in education, government, residential, and corporate sectors, handling projects from schools to public safety facilities.
Are your technicians certified?
Yes, our union-certified technicians undergo rigorous training to ensure compliance with industry standards and safety protocols.
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