Marlborough, Massachusetts addition contractor
More room, built to belong with your home.
FJ Global builds rear additions, second-story additions and expanded living spaces with coordinated structural framing and exterior construction.
Call (857) 995-7728Residential expansion
Home additions managed from the existing structure outward
An addition must connect correctly to the original home. We focus on the structural transitions, roof lines, openings and exterior details that make the new space feel intentional rather than attached as an afterthought.
Depending on the project, the scope can include framing, windows, doors, siding, exterior stairs, decks, porches and related remodeling work.
- Rear and side home additions
- Second-story additions
- Kitchen and family room expansion
- Garage additions and rooms above garages
- Roof, wall and floor framing
- Exterior siding, windows and access
Recent work
A full exterior transformation

From site work to finished exterior
This project progressed through site preparation, wood framing, enclosure and a completed exterior that ties the new two-story space into the original home.
See the full construction sequence in the project gallery on the main site.
View Project PhotosHome addition service area
Serving Marlborough and MetroWest
Related services
Planning to expand your home?
Tell us what space you need, where the property is located and what you want the addition to accomplish.
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