Newport Builders Window land in Wilmington, DE serves Industrial, Residential, Commercial customers in New Castle, DE. We offer services in Door & Window Dealers. We specialize in Basements, Awnings, Carport, Porches, Canopies in New Castle, DE. Accepted, In Business for Over 45 Years, Bring in & Save, All Door Accessories in Stock We are proud to have the following certifications and affiliations - Energy Star. We accept the following forms of payment: Master card, Visa, American Express. We have been proudly serving the Wilmington, DE area since 1963.