| Business | Phone |
| Homecastle Door & Window Ctr 535 First St #7, London N5V 1Z5 | (519) 659-3550 |
| Kml Windows Inc 23 Buchanan Crt, London N5Z 4P9 | (519) 681-7012 |
| Leisure Sunrooms 200 Culver Cres, London N5V 3G7 | (519) 451-1801 |
| Liteview Windows Doors & More 11 Abbott St, London N5W 2K8 | (519) 451-7466 |
| Loewen Windows 4023 Meadowbrook Dr #115, London N6L 1E7 | (519) 652-6750 |
| London Aluminum Products 119 Exeter Rd, London N6L 1A4 | (519) 652-0888 |
| Mgm Glass Ctr 575 Clarke Rd, London N5V 2E1 | (519) 659-1080 |
| New Vision Windows & Doors 66 Scotchmere Cres, London N6E 2A1 | (519) 649-4874 |
| North Star Mfg Ltd 3410 White Oak Rd, London N6E 2Z9 | (519) 681-1054 |
| Beaumart Aluminum Ltd 622 First St, London N5V 2A2 | (519) 453-2850 |
| Bill Wylie Aluminum Products 993 Apache Rd, London N5V 2V7 | (519) 451-2222 |
| Sunview Windows Skylights-Door 1064 Hargrieve Rd, London N6E 1P5 | (519) 668-7400 |
| W D Smith Aluminum Prods Ltd 364 Hamilton Rd, London N5Z 1R5 | (519) 438-5246 |
| Windows Canada 46 Mockingbird Cres, London N6J 4T5 | (519) 686-9315 |
| Window Designs Inc 1615 North Routledge Pk #18, London N6H 5L6 | (519) 471-3231 |
| Window Centre Inc 191 Belmont Dr, London N6J 2E6 | (519) 686-0606 |
| Windows Doors & More Discount 3066 Osler St, London N5V 1V3 | (519) 457-3878 |
| Canada Building Products 1064 Hargrieve Rd #B, London N6E 1P5 | (519) 681-0204 |
| Cayen Window & Door 25 Erica Cres #53, London N6E 3R7 | (519) 649-0780 |
| Centennial Window 1150 Frances St, London N5W 5N5 | (519) 451-0508 |
| Egan's Windows & Doors 62 Beechbank Cres, London N6E 2P2 | (519) 685-7454 |
| Farley Windows 20 Nottinghill Cres, London N6K 1R1 | (519) 473-7890 |