| Business | Phone |
| B F Mahn & Son Plumbing & Htg 112 W Clement St, De Soto 63020 | (636) 586-2300 |
| Casey Plumbing & Excavating 12273 Hyfield Rd, De Soto 63020 | (636) 586-6778 |
| Warncke Plumbing 3869 Warncke Rd, De Soto 63020 | (636) 586-2805 |
| William J Mahn Plumbing Inc 400 W Lueking Dr, De Soto 63020 | (636) 586-1471 |