Serving Greater Boston Since 2010 | Licensed & Insured(617) 857-COEN

Transform Your Living Space With Home Additions in Boston

Your house should change with you as your requirements shift. Why relocate if you can expand? Home additions Boston offers the perfect approach to get more space, improve utility, and increase the value of your home while maintaining the comfort of the neighborhood you love.

Coen Construction specializes in building and planning seamless home expansions that increase functionality and look. We customize every addition to fit the current style of your house, from basement finishing to new bedroom construction to kitchen expansion. Every improvement is made to fit well with careful design and professional building.

Our workmanship brings your vision to life with accuracy and care, from dormer extensions that increase curb appeal to open, welcoming family rooms ideal for entertaining. Home additions Boston are about more than generating additional room; they are about strengthening structure, increasing efficiency, and expanding your home's use.

Coen Construction stresses custom woodwork, structural upgrades, and energy-efficient solutions, including new windows and doors to increase utility and comfort. With years of experience in home additions Boston MA, we understand the challenges this area creates.

What's Included

Bedroom additions & suites
Second-story additions
Sunrooms & four-season rooms
Family room expansions
Dormer additions
Kitchen expansions
Basement finishing
In-law suites

Related Services

Where We Offer This Service

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Where We Work

Serving 90+ Communities Across 3 Regions

From Cambridge to Plymouth — Greater Boston, Metro West, and the South Shore. View all service areas →

Greater Boston

28 towns

Boston's inner cities and neighborhoods — from Cambridge to Hyde Park.

All Greater Boston communities

Metro West

32 towns

The western suburbs stretching from the Charles River to the Sudbury Valley.

All Metro West communities

South Shore

34 towns

Plymouth County and the South Shore coast — from Milton to Plymouth.

All South Shore communities
5-Star Reviews

What Our Customers Say

4.6(15)

"Our experience with Coen Construction for a bathroom ceiling restoration project was exceptional. Scott reviewed the project requirements and provided a detailed proposal. Completed promptly and professionally. We highly recommend Coen Construction!"

M
Mary H.
South Boston, MA

"My rear porch needed structural and cosmetic improvements. Scott provided a proposal outlining the scope of work. His crew showed up early. Whenever an issue arose, it was resolved without impacting the budget. They do quality work in a timely manner."

G
Glenroy G.
Medford, MA

"They are all pleasant and made the process easy for us. They are able to do all the work and I would highly recommend Coen Construction!"

R
Rose L.
Somerville, MA

"It was beautiful. They went far beyond what we expected. What they did was incredible — a huge project. They said they would do it and they did it. They were great."

J
Jeffrey R.
Chelsea, MA
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