Certification Matters

Plumbers certified in Washington State

Washington State Department. of Labor & Industries plumber certification program assures the safety for consumers and workers.

All Journey Level and Residential Specialty Plumbers must obtain 16 hours of continuing education within a two-year renewal cycle. Domestic Pump and Pump and Irrigation plumbers must obtain 24 hours of continuing education, with a minimum of 12 credits of plumbing or combination classes, within a three-year renewal cycle.

Learn more:

How to find a certified plumber

Ed Holmes

Ed Holmes (Washington State Plumber Advisory Board) and Jerry Church (Plumbing, Heating, Cooling, Contractors Assn.) speak with King 5 about finding a qualified plumber. According to New Day NW, "Plumbing is probably one of the most important parts of any residence or building structure but not all of us know how to identify a qualified plumber, which can leave us facing costly problems down the road."

Aren't tools and a logo enough?

Legionnaires’ Disease

Understanding & Mitigation of Legionella

The federal Centers for Disease Control and Prevention say a rare amoeba that caused the August death of a child in south Louisiana has been found in five locations in a north Louisiana water system.

University of Washington Medical Center: Legionnaires' Disease

University of Washington Medical Center officials say a second person linked to an outbreak of Legionnaires’ disease has died

Commercial Plumber Certification Card (WA)

Commercial Plumber

At least 8,000 hours of training
Residential Plumber Certification Card (WA)

Residential Plumber

At least 6,000 hours of training
Plumber Trainee Certification Card (WA)

Plumber Trainee

A plumber under supervision


Infractions for illegal plumbing on the rise in Washington state

In today's hot construction market, the demand for plumbers is high — so high that state inspectors are finding more plumbers working illegally.