About Hesnor Engineering

Hesnor Engineering Associates (HEA) is a mechanical, electrical and plumbing engineering firm with offices in Massachusetts and New York. Since 1992, owners of heavy industrial, manufacturing, research and mission critical facilities have trusted us to provide the M/E/P and building utility design services necessary for their facilities to operate at peak performance.

As we evolved, we applied this experience to projects in the commercial, educational, institutional, multi-family and public sectors to cost-effectively enhance design concepts. HEA’s engineering niche includes complex, unusual M/E/P projects.

We are often called on to design HVAC systems for specialty environments, pumping and piping apparatus, central plants, data center power and cooling systems, and other systems for mission-critical facilities. Our specialized industrial research experience lends itself well to this type of work and has been crucial to our success in the cannabis industry.

More information on our company can be found here


Mike Trzcinski, PE, LEED, CPDMike Trzcinski, PE, CPD, LEED AP

Partner-In-Charge of Cannabis Facility Design

A LEED Accredited Professional, Mikehas over 20 years of M/E/P engineering, commissioning and construction management experience.In addition to his expertise with grow facilities, he has gained substantial experience witha wide variety of specialty environments in research laboratories, manufacturing facilities, data centers, hospitals, and other facilities that have strict air change, room pressurization, temperature and humidity control requirements.Mike has designed M/E/P systems for cannabis facilities in Massachusetts, New Jersey and Pennsylvania.