| Business | Phone |
| Bartlett Home Inspections 258 N Main St, Waterloo 62298 | (618) 939-6434 |
| Illinois Inspection Svc 701 Elaine Dr, Waterloo 62298 | (618) 939-3313 |
| O T Inc 7135 State Route 156, Waterloo 62298 | (618) 473-3334 |
| Wolfe Home Inspection Inc 144 Links Ln, Waterloo 62298 | (618) 939-9660 |