Plumber License Renewal Washington Guide
Keeping your certification active is essential for working legally and safely on plumbing projects across the state. Navigating your plumber license renewal Washington requirements is straightforward once you know your renewal timeline, required coursework, and fees. The program is administered statewide by the Washington State Department of Labor & Industries (L&I) - Plumber Certification Program.
Renewal Cycle & Expiration Dates
In Washington, plumbing certificates must be renewed every 3 years. Your specific expiration date is based on your birthdate during your renewal year. Because renewals are tied to your date of birth, it is critical to keep track of your three-year cycle so you can finish your requirements before your expiration date arrives.
Continuing Education (CE) Requirements
Continuing education is mandatory to keep your plumbing credential active. Before you submit your renewal, you must complete:
- 24 hours of approved continuing education within your 3-year renewal cycle.
Make sure to take coursework from approved educational providers so that your completed hours are accurately recorded and credited toward your renewal.
Renewal Fees
The standard renewal fee for a plumber certification in Washington is $242.70. This fee covers your three-year certification period and must be paid at the time of renewal.
How to Renew: Step-by-Step Checklist
- Check Your Expiration Date: Confirm your three-year renewal deadline based on your birthdate to give yourself plenty of time to finish coursework.
- Complete Your Continuing Education: Finish all 24 required CE hours through an approved provider before your deadline.
- Submit Your Renewal Application: Access the renewal portal through the Washington State Department of Labor & Industries (L&I) website.
- Pay the Renewal Fee: Submit the $242.70 fee using an accepted payment method.
- Verify Active Status: Check the state database after submitting to confirm your certificate reflects an updated active status.
What Happens If You Renew Late?
Allowing your plumbing certificate to lapse puts your ability to work legally at risk. In Washington, performing plumbing work with an expired license or certificate is prohibited and can lead to administrative penalties, work stop orders, or additional requirements to reinstate your credential. If your renewal deadline has passed, avoid working on active jobs and contact the Plumber Certification Program promptly at 360-902-5207 to discuss your reinstatement options.
The renewal details on this page were researched automatically using AI-assisted web search on August 13, 2026 and have not yet been manually confirmed by a human editor. Please verify current requirements directly with the licensing agency linked above before relying on this information.
Sources consulted during automated research: lni.wa.gov, lni.wa.gov, lni.wa.gov.
