featured project

PAN Athletic Center

A design-build project
featured project

The Sandpiper Apartments

A 63-unit affordable housing building.
featured project

Get Away House

A residence with a large, oceanfront view
featured project

Route 44 Hyundai

Renovation + addition
trillium engineering group
Structural & Civil Engineers

We work with contractors, builders, facility managers, architects, and state + city planners throughout Northern New England. We pride ourselves on teamwork and a collaborative spirit, and enjoy working with our clients through every phase of a project, from concept to the final build. Our process is focused on identifying a project’s complexities early and getting ahead of any issues to stay on time and on budget.

8
Widely varying markets we work across
12
Talented team members working together seamlessly
95
Collective years of experience in an ever-changing industry
Our team
A Collaborative Approach

Our work style is focused on being a good partner, eliminating headaches, and being available to answer questions through the entire life of a project.

about us
Our approach
What Makes Trillium Different
01

Communication

Our team is easy to reach and quick to respond

02

Collaboration

Our process is flexible and based on your needs

03

Capabilities

Our experience includes projects of every size

recent projects
Our Work
Testimonials
What Our Clients Are Saying

"We were fortunate to work with Eric Dube and Tony Dumais as our steel structure was very complex yet they worked through options and provided a clear and concise design that came together flawlessly. Their responsiveness and cooperative attitude made all the difference and we look forward to working with them on future projects."

Jerry Burke

VP of Planning, stanmar inc.

"I have been working with the team at Trillium Engineering Group, civil and structural engineering, for over 14 years since starting my architectural practice. Besides being responsive, Trillium is grounded in a common sense approach to their engineering that allows for a teamwork environment between architect, engineer, owner and contractor."

David Matero

Owner, David Matero Architecture

"We were fortunate to work with Eric Dube and Tony Dumais as our steel structure was very complex yet they worked through options and provided a clear and concise design that came together flawlessly. Their responsiveness and cooperative attitude made all the difference and we look forward to working with them on future projects."

Charlie Frattini

General Manager, Phi Builders + Architects

"Trillium Engineering Group is the kind of engineer we like to have on a project. Their strong ethics and extensive knowledge of their profession creates a solid working relationship with their clients. Whether it involves a projects design or solving complex problems in the field, Trillium, led by Eric and Tony, always create an environment for a successful project. They are a solid addition to any project team"

Jerry Burke

VP of Planning, stanmar inc.

"I have been working with the team at Trillium Engineering Group, civil and structural engineering, for over 14 years since starting my architectural practice. Besides being responsive, Trillium is grounded in a common sense approach to their engineering that allows for a teamwork environment between architect, engineer, owner and contractor."

David Matero

Owner, David Matero Architecture