Feldco Windows, Siding, Doors and Roofing | 2,281 followers on LinkedIn. Feldco: The Midwest’s #1 Home Renewal Company for Windows, Siding, Doors and Roofing since 1976 | Feldco Windows, Siding, Doors and Roofing is a family-owned exterior remodeling company that has proudly served the Midwest since 1976. Feldco specializes in custom vinyl windows designed for energy efficiency and curb appeal, high-performance vinyl siding, durable entry, storm, and patio doors, and reliable residential roofing solutions. With expert installation and flexible financing options, Feldco is dedicated to making home improvement projects simple and stress-free for homeowners across the region.