| Business | Phone |
| A1 Drain Away Inc Lake Oswego 97035 | (503) 699-9449 |
| Apollo Drain & Rooter Svc Lake Oswego 97035 | (503) 636-1276 |
| Area 1 Plumbing 15800 Boones Ferry Rd # B3, Lake Oswego 97035 | (503) 675-0548 |
| Crown Plumbing Lake Oswego 97035 | (503) 635-5231 |
| Wolcott Plumbing Lake Oswego 97035 | (503) 656-3367 |
| Jack Howk Plumbing & Drain Lake Oswego 97035 | (503) 636-5444 |
| Seyle's Plumbing Co 17274 Canal Cir, Lake Oswego 97035 | (503) 699-6665 |
| Redi Rooter Lake Oswego 97035 | (503) 635-4044 |
| Pipeline Plumbing & Drains 333 S State St Pmb 108, Lake Oswego 97034 | (503) 635-1968 |
| The Plumbers, Inc. 15808 Upper Boones Ferry Rd, Lake Oswego 97035 | (503) 519-6644 |