| Business | Phone |
| Custom Air Chesterton 46304 | (219) 928-6919 |
| Doler Plumbing & Heating Llc 1575 S Calumet Rd, Chesterton 46304 | (219) 762-0925 |
| La Corte Heating & Air Cond 1096 N 475 E, Chesterton 46304 | (219) 926-6450 |
| Lovings Heating & Cooling Inc Chesterton 46304 | (219) 926-7125 |
| Reling Refrigeration Air Cond 117 Washington St, Chesterton 46304 | (219) 926-1739 |
| United Heating & Cooling Inc 1315 Broadway, Chesterton 46304 | (219) 926-4371 |