| Business | Phone |
| Area Plumbing & Sewer Co 7219 White Oak Ave, Merrillville 46410 | (219) 769-1425 |
| Carl & Sons Plumbing 275 W 68th Pl, Merrillville 46410 | (219) 769-2716 |
| Keough Mechanical Corp 6675 Broadway, Merrillville 46410 | (219) 769-8471 |
| Rooter-Max Merrillville 46410 | (219) 769-2300 |
| Roto-Rooter Plumbing & Drain Merrillville 46410 | (219) 769-6963 |
| St John Plumbing Inc Crown Point, Merrillville 46410 | (219) 365-2080 |