One Source KC, LLC.

One Source KC is a Belton, Missouri–based home improvement contractor that specializes in egress windows, a range of siding options (including James Hardie fiber cement and LP SmartSide engineered wood), and full-service basement finishing; One Source KC uses in-house, licensed and insured crews with 50 years of combined experience, offers convenient financing, partners with premium product brands like ProVia, and focuses on dependable, professional installations that improve safety, functionality, and curb appeal for homeowners across the Kansas City metro area.