| Business | Phone |
| Acorn Roofing Supply Co 2655 W 48th St, Chicago 60632 | (773) 927-5851 |
| Allied Building Products 233 W 87th St, Chicago 60620 | (773) 873-2300 |
| American Hydrotech Inc 303 E Ohio St 2700, Chicago 60611 | (312) 337-4998 |
| General Roofing & Supply Co 7525 S Claremont Ave, Chicago 60620 | (773) 776-1340 |
| Bone Roofing Supply Inc 1950 N Narragansett Ave, Chicago 60639 | (773) 237-9740 |
| Building Blocks Inc 1621 W Carroll Ave, Chicago 60612 | (312) 243-9960 |