Certified Backflow Testing

Company Overview

For nearly two decades, Certified Backflow Testing has served as the go-to option for thousands of homeowners, businesses, and local governments annually. We conduct backflow assembly tests throughout the Puget Sound area, so that this yearly obligation becomes so simple, you might forget about your backflow assembly altogether! Offering straightforward scheduling, quick responses, and transparent pricing, we send you a copy of your report for your records, and we submit your backflow report to the relevant water authority at no additional cost. Best of all, our automated system reaches out to you each year to remind you of the service—just confirm your property ownership, and we manage everything else! Loren Hansen, the founder of Certified Backflow Testing (CBT), started his two-man backflow testing operation from his house. Following 20 years of steady expansion, Loren transferred ownership of CBT to a large commercial plumbing company, Seattle Tacoma Olympia Plumbing STOP Inc, in 2023. Currently, CBT is among the largest backflow testing firms in Washington State, servicing thousands of assemblies yearly and performing hundreds of repairs and installations each year.