| Business | Phone |
| Kraszewski Sheet Metal 444 Dundas St W, Belleville K8P 1B7 | (613) 966-7779 |
| Lee Heating 85 Purdy St, Belleville K8P 1Z2 | (613) 968-9051 |
| R & R Gas Svc 610 County Rd 28, Belleville K8N 4Z7 | (613) 966-0007 |
| Bi-Temp Ltd 280 Jamieson Bone Rd, Belleville K8N 5S8 | (613) 967-1066 |
| Rosebush Heating & Cooling Inc 193a Cannifton Rd, Belleville K8N 4V5 | (613) 967-0768 |
| Stannair Conditioning Inc 43 Pinnacle St S, Belleville K8N 3A1 | (613) 969-7951 |
| Union Energy/21 Degrees 404 Maitland Dr #1, Belleville K8N 4Z5 | (613) 967-0647 |
| Carmichael Engineering Ltd 270 Adam St #2, Belleville K8N 5S4 | (613) 962-3440 |