Northeast Building Products Corporation, known commercially as Northeast Building Products (NBP) is a manufacturer of energy-efficient windows and doors based in Philadelphia, Pennsylvania. Founded in 1975 by Irv and Elaine Levin, NBP is now owned and operated by Alan and Fran Levin.

This family business serves customers east of the Mississippi, including distributors, dealers and contractors, and produces hundreds of thousands of windows per year. Operating in state-of-the-art facilities and employs over 500 people.

We come to work every day, striving to 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.