| Business | Phone |
| Tpi Bldg Code Consultants 7n262 Whispering Trl, Saint Charles 60175 | (630) 443-1567 |
| Biron Homes Design 42w346 Hunters Hill Dr, Saint Charles 60175 | (630) 443-7393 |
| Equity Builders 4n866 Crane Rd, Saint Charles 60175 | (630) 513-8841 |
| J-Way Builders Saint Charles 60174 | (630) 587-5800 |