History

Nason Mechanical Systems, A Fidelity Company, is a full-service HVAC/Mechanical Services contractor based in Auburn, Maine. Founded in 1933 by Harry E. Nason, a skilled plumber from a family of tradespeople, the company began as a modest family business and quickly became known for its boiler and plumbing work before growing into a trusted resource for commercial and industrial heating, cooling, piping, and plumbing systems in Central and Southern Maine. 

Today, Nason Mechanical Systems serves clients in the medical, educational, industrial, food service, and commercial markets, with a focus on service and maintenance, as well as specializing in design-build solutions, energy efficiency, and high-pressure steam plant management. With a commitment to delivering tailored services through strong collaboration, clear communication, and a client-centered approach, the Nason Mechanical Systems team collectively holds over 130 professional licenses and certifications. We pride ourselves on developing long-term partnerships with clients and continually investing in Team Member training to stay at the forefront of industry innovations.