Home Extensions & Additions
Expert home addition contractors serving Long Island's North Shore. Second-story additions, room extensions, and full-scale structural builds with 30+ years of experience.
The North Shore's Trusted Home Extension Contractor
When your family outgrows your home, DC Contracting delivers expert home additions and extensions that blend seamlessly with your existing structure. As a full-service general contractor specializing in major residential construction, we handle every phase — from architectural planning and permits to foundation, framing, and interior finishing.
Whether you need a second-story addition, a new master suite, an extended living area, or a complete structural transformation, our design-build approach ensures your project is managed by one experienced team from start to finish. We use premium materials and proven construction techniques to deliver results that add lasting value to your home.
Before & After
See how we transformed this Centerport home with a complete exterior renovation and addition.
Recent Extension Projects
Browse our portfolio of home additions, extensions, and major renovation projects across Long Island.
Ready to Transform Your Home?
Get a free renovation estimate today. No obligation, no pressure.