Full-service licensed general contracting for Long Island homeowners. From complete whole-home renovations to structural framing, additions, and basement finishing β managed by one trusted team, start to finish.
Whether you're taking on a complete whole-home renovation, adding a room, finishing your basement, or rebuilding after fire or water damage, Greene Group Construction serves as your licensed general contractor β managing every subcontractor, permit, and phase of construction so you don't have to. When the addition is a bathroom, our guide to adding a bathroom on Long Island covers where it can go, what the drain and vent runs require, and what the work costs. Permit requirements change at every town and village line on Long Island, and our Long Island remodeling permits hub sets out what each building department publishes and what it does not.
Our team handles all structural framing, interior renovations, and rebuilds. We coordinate all trades β plumbing, electrical, HVAC, insulation, drywall, flooring, and finishing β under one roof, keeping your project organized, on schedule, and within budget.
The before and after photos below show a real Long Island whole-home renovation completed by our team β every room, every surface, inside and out, completely transformed.
A real Long Island whole-home renovation β every room and the exterior, completely transformed by Greene Group Construction
Old weathered siding, damaged trim, and aged roof replaced with new siding, windows, and roof





One phase of a full-house project. For kitchen-specific scope, pricing and permits, see our kitchen remodeling Long Island hub.





One of several rooms rebuilt on this project. For standalone bathroom renovations, see Bathroom Remodeling on Long Island.




Call Greene Group Construction for your Long Island renovation project