Northeast Building Products, LLC. (NBP) is a Philadelphia-based manufacturer of energy-efficient windows and doors. Founded in 1975 by Irv and Elaine Levin, NBP was purchased by Alan & Elaine’s son, Alan, and his wife, Fran, in July 2002. After 16 years of steady and unprecedented growth, Alan and Fran led NBP into the family of businesses owned by Harvey Building Products in November 2018. Under Harvey's guidance and leadership, NBP continues to serve customers east of the Mississippi, including distributors, dealers, and contractors. NBP emloyes more than 400 people and produces thousands of windows per year out of its two state-of-the-art facilities.

A proud ENERGY STAR® Partner and industry trailblazer, NBP meets and exceeds energy requirements while marrying together robotic precision and human touch.  

Learn more about the Harvey Building Products family


Create an exceptional experience for our customers, community, business partners and employees by manufacturing and distributing quality windows, entry doors and related productsin an effective and team oriented organization built on solid family values.


Quality | Family | Integrity | Resolve | Teamwork