| Business | Phone |
| Kayser Plumbing Htg & Excvtng 4912 S Raymond Rd, Waterloo 50701 | (319) 296-2547 |
| Michaelsen Plumbing Inc 1381 Black Hawk Rd, Waterloo 50701 | (319) 235-0410 |
| A-1 Sewer & Drain Cleaning Svc 1148 Longfellow Ave, Waterloo 50703 | (319) 233-3695 |
| Al Gordon Plumbing & Heating 3855 W Airline Hwy, Waterloo 50703 | (319) 233-3991 |
| Andy's Plumbing & Heating Inc 4435 Texas St, Waterloo 50702 | (319) 296-3050 |
| Benjamin Franklin Plumbing Waterloo 50702 | (319) 236-2236 |
| Bergen Plumbing 828 Commercial St, Waterloo 50702 | (319) 234-1404 |
| Black Hawk Plumbing 1509 Commercial St, Waterloo 50702 | (319) 234-5551 |
| Plumb Tech Inc 2353 W Airline Hwy, Waterloo 50703 | (319) 233-5616 |
| Poyner Plumbing 414 James St, Waterloo 50702 | (319) 235-6367 |
| Ray Waschkat Plumbing Co 1830 Cornwall Ave, Waterloo 50702 | (319) 234-3456 |
| Roto-Rooter Plumbing & Drain Po Box 238, Waterloo 50704 | (319) 234-6702 |
| Curran Plumbing Inc 1137 Dundee Ave, Waterloo 50701 | (319) 233-0353 |
| Dalton Plumbing Htg & Cooling 403 Sycamore St, Waterloo 50703 | (319) 266-3513 |
| G & G Plumbing 204 Cornwall Ave, Waterloo 50702 | (319) 232-9842 |