| Business | Phone |
| A K Heating & Air Cond Ltd 381 Ravenhill Ave, Ottawa K2A 0J5 | (613) 728-2722 |
| Howard Boyle Heating-Air Cond 1726 Bank St, Ottawa K1V 7Y6 | (613) 829-4000 |
| Oakes Home Comfort 1501 Carling Ave, Ottawa K1Z 7M1 | (613) 722-8887 |
| Thermotemp Heating & Air Cond 344 Churchill Ave N, Ottawa K1Z 5C1 | (613) 728-3043 |
| Ultimate Combustion Svc 230 Brittany Dr #102, Ottawa K1K 0R6 | (613) 244-0633 |
| Werner's Wholesale 1155 Lola St #3, Ottawa K1K 4C1 | (613) 741-6603 |
| Westboro Home Insulation Co 307 Picton Ave, Ottawa K1Z 6V4 | (613) 722-1804 |
| Cbrr Mechanical Contractors 1165 Woodside Dr, Ottawa K2C 2G7 | (613) 225-0069 |
| Clay-Mac Heating-Refrigeration 1526 Chatelain Ave, Ottawa K1Z 8B5 | (613) 728-0277 |
| Dearie Contracting 2151 Thurston Dr, Ottawa K1G 6C9 | (613) 739-1555 |
| Ercan's Natural Gas & Air 53 Burland St, Ottawa K2B 6J9 | (613) 596-4240 |