Business Details
50+ Years
experience
Trusted Construction and Mechanical Contracting Services in Kensington, MD
Heffron is a family-owned mechanical and plumbing contracting company with over a century of experience serving the Washington Metropolitan region and East Coast. Founded in 1922, we specialize in designing and installing mechanical systems for commercial, biotechnology, healthcare, and government projects. Our approach prioritizes relationship-building, ensuring projects are completed on time, on budget, and with meticulous attention to quality. With a legacy of innovation and a commitment to safety, we serve major utilities, architects, engineers, and property managers. Our team of 20 degreed professionals and skilled technicians delivers state-of-the-art solutions, including HVAC, plumbing, and preventive maintenance services.Recognized for excellence, we have earned awards such as the Washington Building Congress Craftsmanship Award. Our long-standing client relationships, some spanning decades, reflect our dedication to partnership, integrity, and problem-solving. We combine multi-generational expertise with cutting-edge technology to meet evolving industry demands while maintaining a culture of safety and accountability across 400,000 annual person-hours. Our history of collaboration with construction partners and focus on energy efficiency position us as leaders in complex, high-impact projects.
Services
HVAC Installation
Plumbing Systems
Design-Build Projects
Preventive Maintenance
Biotechnology Construction
Facilities Engineering
Emergency Repairs
Energy Efficiency Solutions
Details
- Year established: 1922
Highlights and features
- We have over 100 years of experience in commercial mechanical contracting.
- Our team includes 20 degreed professionals with expertise in biotechnology systems.
- We prioritize safety with a culture built on 400,000 annual person-hours.
- Family-owned for four generations, ensuring long-term client partnerships.
- Award-winning craftsmanship recognized by Washington Building Congress.
What people say
Exceptional teamwork
Timely project delivery
Technical expertise
Award-winning quality
Strong partnerships
Services
HVAC Installation
Heffron designs and installs advanced heating, ventilation, and air conditioning systems for commercial and industrial facilities. Our solutions prioritize energy efficiency and compliance with industry standards. With decades of experience, we ensure optimal climate control for offices, biotech labs, and healthcare centers.
Plumbing Systems
We provide comprehensive plumbing solutions for new construction and retrofit projects, including water supply, drainage, and process piping. Our expertise spans commercial buildings and specialized facilities like dairy processing plants. Systems are engineered for durability and regulatory compliance.
Design-Build Projects
Heffron offers end-to-end design-build services, coordinating HVAC and plumbing systems from planning to execution. This approach reduces costs and timelines while ensuring seamless integration with client requirements for offices, labs, and institutional buildings.
Preventive Maintenance
Our preventive maintenance contracts cover chillers, boilers, and HVAC equipment to ensure operational efficiency. Services include inspections, repairs, and performance optimization for commercial properties and critical infrastructure.
Biotechnology Construction
We specialize in mechanical systems for biotech research and manufacturing facilities, including cleanrooms and GMP-compliant environments. Projects involve complex piping, ventilation, and temperature control systems tailored to pharmaceutical and life sciences clients.
People
George Dunn, Jr.
Chief Executive Officer
Third-generation leader with a focus on maintaining Heffron's legacy of quality. Holds degrees from University of Notre Dame and Georgia Tech. Transformed the company into a regional industry leader.
Colin Dunn
President
Fourth-generation executive committed to advancing Heffron's 100-year tradition. Graduated from Hampden Sydney College and University of Notre Dame. Prioritizes client relationships and strategic growth initiatives.
Mike Hunke
Chief Financial Officer
CFO with extensive construction industry experience. Certified Public Accountant and Chartered Global Management Accountant. Focuses on financial strategy and operational efficiency since joining in 2022.
Steven Johnson
Senior Vice President of Construction
Construction leader with expertise in projects ranging from $2M to $70M. Holds mechanical trade certifications and management training. Joined Heffron in 2015 after field and executive roles.
Jonathan Boyd
Senior Vice President of Service
Service department head with 20+ years in HVAC trade. Oversees 50+ employees supporting biotech, healthcare, and commercial clients. Started as apprentice and advanced through technical and leadership roles.
Questions
What industries does Heffron specialize in?
We focus on commercial, biotechnology, healthcare, government, and industrial projects requiring specialized mechanical and plumbing systems.
How long has Heffron been in business?
Since 1922, providing over 100 years of expertise in mechanical contracting and construction services.
What geographic areas do you serve?
Primarily Washington Metropolitan region with projects extending along the East Coast.
What safety measures does Heffron prioritize?
We maintain a strong safety culture across 400,000 annual person-hours, emphasizing training and compliance at all job sites.
Can Heffron handle complex design-build projects?
Yes, our team provides integrated design and construction solutions to optimize timelines and budgets for HVAC and plumbing systems.
