| Business | Phone |
| Hague Quality Water Midwest 11415 Fairbanks Pl, Crown Point 46307 | (219) 662-7599 |
| Northwest Indiana Backflow 5910 E 129th Ave, Crown Point 46307 | (219) 663-8390 |
| Water Works 501 Foote St, Crown Point 46307 | (219) 663-8210 |
| Waterpur Inc 11415 Fairbanks Pl, Crown Point 46307 | (219) 662-7363 |