Room Extensions
Add usable square footage with well-planned room extensions designed to blend with your existing home, improve daily living, and support your family’s changing needs.
Expand your home with thoughtful room extensions and remodeling by Green Island Homes. Serving Cape Cod and Martha’s Vineyard homeowners, our fully licensed and insured team handles construction details with reliable communication, fair pricing, and practical guidance for coastal properties where space, durability, and long-term value matter.

Complete addition and remodeling support for homeowners expanding comfort, function, and long-term property value.
Add usable square footage with well-planned room extensions designed to blend with your existing home, improve daily living, and support your family’s changing needs.
Transform existing spaces with remodeling services backed by reliable project communication, practical construction knowledge, and a focus on fair pricing from start to finish.
Green Island Homes handles all phases of construction, including additions, roofing, decks, drywall, custom closets, pergolas, and related structural improvements.

We begin by understanding how you want to use the new space, whether it is a larger living area, added bedroom, improved storage, or a more functional layout for Cape Cod or Vineyard living.
Homeowners trust our licensed team for dependable remodeling and construction support.
Fully licensed and insured for residential construction and remodeling peace of mind.
Serving Cape Cod and Martha’s Vineyard properties with practical coastal construction awareness.
Known for great communication throughout the entire project, from planning to completion.
Homeowners appreciate knowledgeable, friendly service with pricing that feels transparent and fair.
Reliable construction support for local residential homeowners.
Green Island Homes provides custom home building and remodeling for Cape Cod and Martha’s Vineyard homeowners who want a smoother, more communicative construction experience. Based in Edgartown, the company brings licensed and insured support to additions, remodeling, new construction, modular homes, and all phases of construction. Their approach centers on being easy to work with, fair in pricing, and consistent in communication throughout each project. For coastal homes where layout, durability, and property value all matter, Green Island Homes aims to be the dream construction company—knowledgeable, reliable, friendly, and focused on helping residential property owners improve the way they live.
Start by defining the size, purpose, and complexity of the addition, then factor in foundation needs, framing, roofing, siding, insulation, electrical, plumbing, finishes, and permitting requirements. Costs also vary based on whether the project ties into existing rooms or requires major structural changes. A contractor can refine the estimate after reviewing your home, site conditions, and desired materials.
Talk with Green Island Homes about your project goals.
Green Island Homes serves residential construction and remodeling clients across Cape Cod and Martha’s Vineyard.
2 Regions
Service Area
Edgartown, MA
Headquarters
Residential
Project Type
Reach out to discuss your location and project scope.
Verified through HomeAdvisor screening standards.
Recognition for strong homeowner satisfaction.
Service recognition for dependable customer care.
Tell Green Island Homes about your addition, extension, or remodeling goals, and the team will help you understand the next steps for planning your project.
For immediate assistance, feel free to give us a direct call at 774-563-9714. You can also send us a quick email at sales@greenislandhomes.com.
For immediate assistance, feel free to give us a direct call at 774-563-9714. You can also send us a quick email at sales@greenislandhomes.com.