About Company

DeFinis And Sons Windows & Doors is a family-run window and door installation company founded in 1959 that serves the entire Delaware Valley and Southern New Jersey from a showroom in Northeast Philadelphia. The company provides expert replacement and installation of vinyl double-hung, bow and bay, garden, slider, casement, basement windows, and steel, fiberglass, sliding patio, security, and storm doors, delivered by fully insured, uniformed technicians. DeFinis And Sons emphasizes professional installation, personalized consulting, fair pricing with coupons, and 100% workmanship satisfaction, and has earned long-standing recognition including Angie’s List Super Service Awards since 2010 and an A+ BBB rating, positioning the company as a leading provider of custom windows and doors in the region.

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