Cornerstone New York LLC Construction

 Residential & Commercial

We take pride in our services. Cornerstone New York is a family owned and operated construction business. Michael was born and raised in New York and with 25+ years of experience, is building a community one house at a time. Don't hesitate to ask us  questions or inquire within.  Our staff is friendly and extremely knowledgeable. We want you to know just how special you and your project are to us; therefore,  we do our very best to ensure that your needs always come first. We even provide a complimentary estimate where we will come out to you. Let us be the cornerstone of your home.

General Contractor

           CORNERSTONE NEW YORK LLC            
(516) 868-3620   (516) 521-6333


Our Promise

Licensed & Insured: Nassau, Suffolk, New York City - all 5 Boroughs, Long Beach, Island Park & Surrounding Areas.

Nassau License # H0455460000

Suffolk License # 56570-H

NYC License # 2035970-DCA


*Doors & Windows



*Extensions, Dormers & Basements

*Roofing & Siding



We want you to know that we back our services with a satisfaction guarantee.