| Business | Phone |
| Culligan Water Conditioning 5201 Williamson Rd, Roanoke 24012 | (540) 366-9078 |
| Kinetico Roanoke 24012 | (540) 977-6030 |
| M & S Environmental Products 2840 Electric Rd, Roanoke 24018 | (540) 989-2017 |
| Petrus Environmental Svc Inc 1807 Murry Rd Sw # O, Roanoke 24018 | (540) 344-9800 |
| Rain Soft Water Treatment Syst 2819 Williamson Rd Nw, Roanoke 24012 | (540) 344-6790 |
| Rainsoft 1930 Orange Ave Ne, Roanoke 24012 | (540) 567-6133 |
| Roanoke Water Treatment Inc 1948 Franklin Rd Sw, Roanoke 24014 | (540) 982-2324 |
| Ultimate Purification Systems 1512 Lonna Dr Nw, Roanoke 24019 | (540) 562-1811 |