DNS Exterior Inc.

DNS Exterior is an exterior contractor in Lockport that installs roofing, siding, windows, gutters and entry doors. The company works with Rollex gutter systems, Alcoa exterior materials, Andersen and ProVia windows and doors, and Albany Door Company front doors, and says it uses its own crew rather than subcontractors.

The company offers free estimates and free in-home or on-site consultations, and it says it handles residential and commercial jobs. Its hours run Monday through Saturday from 8 AM to 6 PM, and it serves Lockport and the western Chicago suburbs, including Orland Park, Romeoville, Lemont and Homer Glen, with some work across Chicagoland.