(Updated February 2021)
Companies are listed in Alphabetical order. Canby Utility does not prefer one testing company over another.
For a complete list of Certified Backflow Testers in Clackamas County please go to the Oregon Public Health Drinking Water Data page.
- A1 Backflow — 503-873-9600 — Silverton, Oregon
- AFP Systems — 503-692-9284 — Tualatin, Oregon
- A & A Drilling — 503-780-3823 — Milwaukie, Oregon
- American Backflow Services — 503-289-1745 — 5905 N. Interstate Portland, OR 97217
- Ben’s Backflow, LLC — 503-351-0266 — Eagle Creek, Oregon
- Bruton Backflow & Irrigation — 503-618-1806 — PO Box 1927 Fairview OR 97024
- Cascadia Backflow — 503-899-7248 — 16869 SW 65th Ave #9 Lake Oswego OR 97035
- Custom Plumbing & Construction — 503-266-1212 — PO Box 1051 Canby OR 97013
- Clean Water Backflow Testing — 503-708-2518 — 15755 SW Willow Ct. Sherwood OR 97140
- Columbia Cross Connection Control — 503-235-6141 — PO Box 9217 Portland OR 97207
- Dynamic Backflow — 971-983-9456 — PO Box 610 Wilsonville OR 97070
- Eco Backflow LLC — 503-669-2722 — PO Box 579 Sandy, Oregon 97055
- Fire Services Plus — 503-848-2345 — Beaverton, Oregon
- Full Landscape Management — 503-406-8233 — Canby, Oregon
- Heath Backflow — 503-625-8553 — PO Box 1565 Sherwood OR 97140
- Living Color Nursery- Nathan Holmes — 971-275-4306 — PO Box 514 Wilsonville OR 97070
- Mark Anderson Backflow Testing — 503-849-4700 — Oregon City, Oregon 97045
- M & E Backflow Consulting — 503-347-1107 — 1517 NE 10th Place Canby OR 97013
- Merrill Water Systems — 503-734-7400 — 14603 S. Macksburg Rd., Molalla OR 97038
- My Plumbing — 971-409-3864 — 17416 SE Brooklyn St Portland OR 97236
- Northwest Backflow Inspection — 503-695-3286 — PO Box 1536 Hillsboro OR 97123
- Northwest Plumbing & Backflow — 503-488-0773 — 12042 SE Sunnyside Rd. Clackamas OR 97015
- Oregon Backflow Testing — 503-491-9402 — 15685 SW 116th Ave. #199 Portland OR 97224
- Oregon Irrigation — 503-656-9826 — 25333 S. Zeller Dr. Canby OR 97013
- Pro-Grass — 503-682-6076 — 29895 SW Kingsman Rd. Wilsonville OR 97070
- Tom Hempel Testing, LLC — 503-390-1961 — PO Box 20271 Keizer OR 97307
- T & R Building Service — 503-318-6313 — 8660 Rogue Ln. Wilsonville OR 97070
- Waterscape Irrigation — 503-209-9748 — PO Box 1856 Gresham OR 97030
- Willamette Valley Backflow — 503-884-7696 — PO Box 1605 Silverton OR 97381