Cornerstone Building Corp
720 4th Street
Watervliet, NY 12189

Welcome to CornerStone Building

CornerStone Building Corp. is a construction company that has proudly been serving the Capital District and Northeast for over 10 years. We have built our reputation on service and expertise, setting the standard in providing the best value to our commercial and residential clients. With a strong foundation in providing a full range of real estate and construction services we have the versatility to handle projects of varying scope, schedule, and budget.

As a vertically integrated company, we have the capability to handle every aspect of your project from site acquisition and sale through construction and property management. Our broad range of services organized into eight core areas:




"Having a dedicated project manager assigned to my new construction gave me complete confidence. If I had a question or concern about the progress of my building I could pick up the phone and contact my PM, he handled every question from architectural design and engineering to zoning and budget. My PM kept me informed and up-to-date through every phase of construction."

Cornerstone Client, , Pittsfield, MA


"CornerStone provides a level of service and expertise that went above and beyond what I was expecting, but also beyond traditional construction."

Cornerstone Client, Residential, Rexford, NY