Who We Are

Founded in 1917 in Hanover, New Hampshire, Trumbull-Nelson now operates from West Lebanon, continuing a legacy of craftsmanship and integrity that spans more than a century. We believe successful projects are built on thoughtful planning, the right team, and an unwavering commitment to excellence - from early design review through the final Certificate of Occupancy. 

The T-N Process

Our approach is grounded in three core principles: Project Leadership, Collaboration, and Shared Responsibility.

Project Leadership

To us, leadership means having the vision, experience, and judgment to fully understand - and successfully deliver - our project goals. Strong leadership empowers every team member to make informed decisions in the owner’s best interest.

This philosophy guides our work at every stage, reinforcing the value of each individual’s contribution and ensuring a clear, unified direction from start to finish.

Collaboration

Collaboration is essential to success in construction. We partner with trusted architects, designers, engineers, and local contractors to bring the highest level of expertise to every project.

By fostering open communication and transparency, we ensure that all team members have access to the same information and resources. This shared understanding creates alignment, strengthens relationships with our subcontractors, and results in a more seamless building process —from initial design through final details.

Shared Responsibility

Delivering projects on time and within budget is a fundamental commitment at Trumbull-Nelson. We believe accountability is shared across the entire project team, and that every action — big or small — impacts the final outcome.

Our leaders set clear expectations, recognize contributions, and maintain a positive, solutions-focused environment. By emphasizing accountability and mutual respect, we create a culture where every team member understands their importance and takes pride in consistently delivering exceptional work.