| Business | Phone |
| Airtight Insulation Inc Portland 97204 | (503) 226-7002 |
| All Weather Remodeling Co 5005 Ne Fremont St, Portland 97213 | (503) 284-9306 |
| Performance Contracting Inc 5555 N Channel Ave # 10, Portland 97217 | (503) 285-4132 |
| Pacific Insulation Svc 5716 Ne Hassalo St, Portland 97213 | (503) 287-9390 |
| Mechanical Insulation Po Box 10736, Portland 97296 | (503) 366-1916 |
| Insulpro Projects 9450 Ne Colfax St, Portland 97220 | (503) 408-5784 |
| Lo-Temp Contracting Svc Inc 4702 Sw Scholls Ferry Rd # 411, Portland 97225 | (503) 297-4649 |
| Lo-Temp Contracting Svc Inc 4802 Sw Scholls Ferry Rd # B, Portland 97225 | (503) 297-4649 |