| Business | Phone |
| Thermal Insulation Corp 2910 Griffith Rd, Winston Salem 27103 | (336) 765-9633 |
| Salem Insulation & Svc 6220 Hacker Bend Ct # E, Winston Salem 27103 | (336) 766-5760 |
| Performance Contracting Inc 4305 Enterprise Dr, Winston Salem 27106 | (336) 759-3796 |