| Business | Phone |
| M S Mechanical & Sons 6722 Purcell Rd, Cornwall K6H 5R5 | (613) 931-1887 |
| Pat Caron Heating & Refrig 1404 Queen St, Cornwall K6J 1R2 | (613) 933-8144 |
| Walker Climate Care 1517 Mcconnell Ave, Cornwall K6H 7G9 | (613) 932-7978 |
| Cornwall Heating & Cooling Inc 800 Campbell St, Cornwall K6H 6L7 | (613) 937-4603 |