| Business | Phone |
| Anax Inc 57 Sante Dr, Concord L4K 3C4 | (416) 480-2247 |
| Amodio Ram Roofing Ltd 207 Edgeley Blvd, Concord L4K 4B5 | (416) 858-0389 |
| York Roofing Ltd 110 Maplecrete Rd, Concord L4K 1A4 | (905) 669-2470 |
| Gta Roofing Systems 50 Viceroy Rd #15, Concord L4K 3A7 | (905) 760-8701 |
| Industrial Roofing Svc Ltd 582 Rivermede Rd, Concord L4K 2H5 | (905) 760-0735 |
| Jack Atlas Roofing 450 Bowes Rd, Concord L4K 1K3 | (905) 738-1032 |
| King Koating Roofing 41 Peelar Rd, Concord L4K 1A3 | (905) 669-1771 |
| Provincial Industrial Roofing 176 Creditstone Rd, Concord L4K 4H7 | (905) 669-2569 |
| Canadian Genesis Roofing 2063 Highway 7, Concord L4K 1V6 | (416) 736-7003 |
| Chislett Asphalt Roofing Ltd 79 Peelar Rd, Concord L4K 1A3 | (905) 738-9433 |
| Donpar Roofing 101 Freshway Dr, Concord L4K 1R9 | (905) 660-2454 |