| Business | Phone |
| Gillanders Heating 31 Leeson Dr, Chatham N7M 5T9 | (519) 354-3380 |
| Jack Foley Heating & Cooling 51 Centre St, Chatham N7M 4W1 | (519) 354-9048 |
| Louis Home Air Conditioning 9 Degge St, Chatham N7M 4X3 | (519) 351-1295 |
| Mac Ball & Sons Htg & Cooling 42 Mcnaughton Ave W, Chatham N7L 1R1 | (519) 354-3582 |
| Postma Heating & Cooling Inc 22132 Charing Cross Rd, Chatham N7M 5J3 | (519) 354-9491 |
| Qps-Mechanical Contractors 595 Bloomfield Rd, Chatham N7M 5J5 | (519) 351-3177 |
| Trudell Heating & Cooling 11427 Darrell Line, Chatham | (519) 352-2773 |
| Danny's Heating & Cooling 19 Poplar St, Chatham N7L 1J8 | (519) 352-4789 |