| Business | Phone |
| A-Z Heating & Cooling 1792 London Line, Sarnia N7T 7H2 | (519) 542-2333 |
| Sam's Heating Ltd 5852 Telfer Rd, Sarnia N7T 7H2 | (519) 542-9442 |
| Sarnia Commercial & Ind Refrig 19 Metcalfe Dr, Sarnia N7X 1A3 | (519) 542-0333 |
| Sarnia Heating & Electric Co 1407 London Rd, Sarnia N7S 1P6 | (519) 542-3633 |
| Union Energy 1143 Confederation St #C, Sarnia N7S 3Y5 | (519) 332-8631 |