At The Calvosa Organization, we are committed to building finely crafted custom homes on Long Island that are complemented by exceptional amenities. Whether you want a classic Hamptons estate or a luxurious custom home in East Islip, The Calvosa Organization can make your dream home a reality. Our award winning, in-house, architectural and design team is ready to guide you through the process, with a full library of design styles to inspire you. Then, our best-in-class project managers will ensure you get top quality construction and service. This and much more, is delivered on budget, and on time. When it comes to custom homes on Long Island, The Calvosa Organization is the name to trust.