Basement Remodeling O'Fallon serves Missouri's largest St. Charles County city with complete basement finishing and remodeling. From our location on Keaton Crossing Boulevard we serve O'Fallon, St. Peters, Dardenne Prairie, Lake Saint Louis and Wentzville with basement finishing, full basement remodels, basement bars and theater rooms, basement bathrooms and basement bedrooms, plus home offices, fitness rooms and guest suites. O'Fallon's newer subdivisions are full of tall-pour unfinished basements that finish beautifully... read full review »