Our Services

Colantonio offers a range of preconstruction, general contracting, and construction management services which are distinguished by the unique qualities of our firm. Across our work, our services model combines old-fashioned values of earning trust and team building with deep industry acumen derived from our firm’s self-performance across multiple trades and our insight into cost trends from working in the competitive-bid market.

We use the latest technology to deliver complex, large-scale projects while meeting a diverse range of client and market needs. This includes the flexibility to perform to the highest standards using both the Construction Management at Risk and the Design-Bid-Build delivery methods.

“They are very well-versed in treating people the right way. We would definitely hire Colantonio again.”

Brian Langton
Director of Modernization
Somerville Housing Authority

What makes us different?

5 Self-Performed Trades

Firsthand knowledge of the work gives us an edge on minimizing costs, controlling schedules, and ensuring the highest quality.

Competitive Bid Experience

Keeps us on the pulse of the most competitive pricing and subcontractors, and a unique insight into the industry cost trends.

Old-Fashioned Values

A perspective of earning trust and team building that attracts talented subcontractors who are treated well allowing competitive pricing and better schedule management.

“The Colantonio team was very sensitive to maintaining the historic integrity of the Jamaica Plain Library. They were careful to keep the historic features such as interior woodwork and glass elements intact even while making strong modern improvements throughout the building.

The Colantonio team was sensitive to the community context of the project as well. The library is on a very constricted site in a neighborhood surrounded by residences and small businesses. They consistently reached out to residents to update them on the work coming up and to make sure they understood what was happening and how it might affect them.”

Brett Bentson
Associate Principal
Utile Architecture and Planning


Meticulous management that minimizes risk and ensures smooth construction processes.


Collaborative process led by experienced professionals that exceeds client expectations.


Accurate pricing, unparalleled experience, where everyone thinks like an owner.


Superior plan reviews, workmanship, and subcontractor management adding real value.