K-12 Education

Sustainable (LEED) M/E/P designs for school building renovations, additions & new construction.

Public Sector

Airports, public safety buildings, libraries, community centers, state and local governments, and more.

Higher Education

Student housing, dining facilities, central plants, laboratories, student centers and campus facilities.


Office towers, retail centers, restaurants, bars, shopping plazas, mixed-use buildings.

Data Centers

Environmental cooling, UPS & PDU systems, racking, security and more.


Hospitals, clinics, ambulatory facilities and medical offices

Industrial & Research

M/E/P designs and phased construction solutions for manufacturers, industrial research facilities, and pharmaceutical companies.

Multi-Unit Residential

 In the last five years, HEA has designed M/E/P systems for over 2,300 units in multi-family buildings.

Cannabis Production & Retail

Controlled environment agriculture requires a fundamentally different approach. We can help.

Engineering firms are hired for two things: their knowledge and expertise. Hesnor Engineering Associates (HEA) has the knowledge and expertise to deliver sound, experience-based, energy-efficient M/E/P engineering solutions… every time.           


Our philosophy:

Many firms spend a lot of time talking about their client service philosophy. Ours is simple: we assess each project independently, deliver fundamentally sound designs, and implement them within budget and on schedule… responsively and responsibly.

We know this approach works: a repeat client business ratio of 95% attests to our clients’ satisfaction.

What sets us apart?

We have significant experience with heavy commercial, industrial, institutional and data center M/E/P equipment and systems. Our resume includes over 3,500 M/E/P projects at these types of mission critical facilities since 1992.

Our engineering niche includes complex, unusual M/E/P projects. We are often called on to troubleshoot complex control systems, pumping and piping apparatus, boiler and chiller plants, data center power and cooling systems, and other M/E/P equipment. Our specialized industrial research experience lends itself well to this type of work.

We apply our niche industrial M/E/P expertise to commercial, institutional and governmental sector projects to enhance HVAC, electrical, plumbing and fire protection design concepts. We have applied our experience to projects at commercial buildings, medical facilities, colleges and universities, public school buildings, public housing authorities, and other state and municipal agencies.

We have extensive experience with equipment procurement and phased construction plans. We strive to procure heavy equipment on behalf of our clients at the earliest possible juncture in the design process, which results in accelerated construction schedules and reduced costs. And, we are experienced in developing phased construction plans, which minimizes or even eliminates operational downtime during construction.