| Business | Phone |
| A R Malton Roofing & Siding 262 St. Paul St W, St Catharines L2S 2E7 | (905) 685-7868 |
| Aar Roofing & Siding 22 Drury Cres, St Catharines L2M 6B6 | (905) 984-9811 |
| Ace Roofing 45 Meadowvale Dr, St Catharines L2N 3Z7 | (905) 934-5058 |
| George Orth Ltd 12 Woodburn Ave, St Catharines L2P 2W7 | (905) 688-1101 |
| Herman's Building Ctr 236 Welland Ave, St Catharines L2R 2P5 | (905) 641-2000 |
| Home Roofing Inc 29 Hiscott St, St Catharines L2R 1C7 | (905) 684-6557 |
| Modern Roofing Inc Rr 1 Lcd 2, St Catharines L2R 6P7 | (905) 684-0006 |
| Northland Roofing Ltd 48 Rochelle Dr, St Catharines L2M 6Y9 | (905) 935-8965 |
| Pec Roof Maintenance 1544 Fifth St, St Catharines L2R 6P9 | (905) 685-4001 |
| Schrompf Roofing & Siding 236 Welland Ave, St Catharines L2R 2P5 | (905) 641-1200 |
| Smith's Home Svc 286 Lake St, St Catharines L2N 4H2 | (905) 937-8088 |
| Bosco Roofing 18 Woodmount Dr, St Catharines L2T 2X9 | (905) 227-5351 |
| Cedar Roof Ontario 116 Dunkirk Rd, St Catharines L2P 3H5 | (905) 684-4791 |
| Ed Christensen Roofing Ltd 1544 Fifth Louth Ave, St Catharines L2R 6P7 | (905) 685-4424 |
| Favero's Residential Roofing 16 Rosemount Ave, St Catharines L2M 1Z3 | (905) 682-4646 |
| First Action Roofing 29 Neilson St, St Catharines L2M 5V9 | (905) 687-4149 |