D&E Window and Door is a full service commercial glass and glazing contractor located in Lebanon, New Jersey. With our highly skilled staff of estimators, project managers, and installers we bring 170+ years of experience. D&E manages a robust portfolio for clients throughout the Tri-State area. We pride ourselves on quality as well as professionalism on each and every project. We are distributors as well as Certified Installers for the top commercial window, curtain wall, storefront, and door manufacturers in the world. Superior quality is our hallmark, and we are capable of providing turnkey solutions to residential or commercial projects of any size.

We’re more than just a company – we’re a team that takes genuine pride in every project we take on, treating each one as if it were our own. Our commitment to client satisfaction drives us to go above and beyond, ensuring that every detail is perfect and that the final result exceeds expectations.

At D&E Window and Door, we specialize in the expert supply and installation of premium architectural products, including aluminum and wood doors, FRP doors, aluminum windows, storefront systems, curtain walls, and secure vestibules. We proudly serve a diverse range of clients—schools, universities, hospitals, office complexes, apartment buildings, and condominiums—delivering quality craftsmanship, reliable service, and long-lasting performance on every project.