We Build Your Dream

Seifert Construction is a third generation family owned and operated full-service construction company.We specialize in high-end, luxury custom homes and renovations on the North Fork, Hamptons, and Long Island. Licensed by the New York State Board, we understand the importance of completing every job with 100% customer satisfaction, without any surprises or disappointments. 


We have built our business from the ground up with the help of a steady stream of referrals from satisfied and repeating customers. With over 000 completed jobs of both small and large scale, Seifert Construction has earned the reputation as one of the east ends premiere go to home builders and home renovations. 


Our focus is on providing excellent service and quality workmanship for all clients. From the start of estimating, through the rough construction phase we maintain full control and communication with our clients. Ensuring that every stage of the way is done with detail. When your home or business is completed we continue to work with our clients in the future and strive to build lasting relationships. 

Seifert Construction is a family owned and operated full-service construction company. We specialize in high-end, luxury custom homes and renovations on the North Fork of Long Island. We take great pride in knowing every single house we build is a true representation of our company. Only the best materials and highest quality craftsmanship go into each Seifert Construction home. 

We build each facility as if it were our own, and want the very best in longevity and quality. This is why the majority of our work is repeat business.

A Family Legacy of Home Builders

History of Seifert Builders

Fred and John Seifert are the proud owners of Seifert Construction. As the sons of Fredrick John Seifert who for 50 years, was a well-known builder in the Five Towns, Brookville, the North Fork and the Hamptons. A Grand Master Craftsman, he was often referred to as a Michelangelo of woodworking. Building was more than a job; it was a passion and he enjoyed going to work every day. After both Fred and John graduated college they proudly returned to Seifert Builders and worked with their father until they felt confident enough to work together and take over the business continuing their fathers legacy.