| Business | Phone |
| Armitage Insulation 4086 W D Ave, Kalamazoo 49009 | (269) 383-6400 |
| Thermico Inc 3074 Interstate Pkwy, Kalamazoo 49048 | (269) 342-6658 |
| Quality Insulation & Roofing 3134 N Pitcher St, Kalamazoo 49004 | (269) 345-0080 |
| Eco Foam Insulating Systems 3957 Jennings Dr, Kalamazoo 49048 | (269) 345-8241 |
| General Insulation Inc 134 W Crooked Lake Dr, Kalamazoo 49009 | (269) 345-3477 |