| Business | Phone |
| Willard Power Vac Inc 15620 Ne Glisan St, Portland 97230 | (503) 256-9905 |
| Air Duct Cleaners Northwest 13532 Se Foster Pl, Portland 97236 | (503) 760-4401 |
| Alco Electric 6036 Sw 18th Dr, Portland 97239 | (503) 244-3010 |
| American Air Duct Cleaners Inc Portland 97213 | (503) 407-1185 |
| American Power Vac Portland 97232 | (503) 288-5340 |
| Carlson Power-Vac Portland 97220 | (503) 254-5292 |
| Ductbusters 7705 Se Flavel St, Portland 97206 | (503) 246-0184 |
| Mr Nash Inc 8935 Ne Alberta St, Portland 97220 | (503) 255-2505 |
| Lofstroms Portland 97212 | (503) 515-2477 |
| Mr Furnace Portland 97229 | (503) 626-4006 |
| Heat Master Corp Portland 97229 | (503) 626-4006 |
| Rose City Heating & Air 8946 Sw Barbur Blvd, Portland 97219 | (503) 636-5371 |