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Plumber License in Washington

Your complete 2026 guide to obtaining and maintaining your Plumber license in WA. Covers fees, exams, documents, and renewal.

Application Fee

$300

Processing Time

4-6 Weeks

Exam Required

Journeyman Plumber Exam

Difficulty Level

Medium

Step-by-Step: How to Get Licensed

Follow these 5 steps to obtain your Plumber license in Washington.

Step 1·Complete Education

Finish an approved Plumber training program in Washington.

Step 2·Gather Documents

Collect all 5 required documents for your WA application.

Step 3·Pass the Exam

Score passing marks on the Journeyman Plumber Exam.

Step 4·Submit Application

File your application with the Washington licensing board and pay the $300 fee.

Step 5·Receive License

Processing takes 4-6 weeks in WA. Practice legally once approved.

How to Apply

The path to becoming a licensed Plumber in Washington involves several key steps. First, complete an approved education program recognized by WA. Next, prepare for and successfully pass the Journeyman Plumber Exam. Finally, gather your documentation and submit your license application through the Washington state licensing portal.

Requirements

Washington has specific requirements for Plumber licensure that applicants must fulfill. You must be at least 18 years old and hold a valid government-issued identification. Educational requirements include completing an accredited program relevant to install and repair plumbing systems in residential and commercial buildings. A clean background check is mandatory in WA, and you must demonstrate good moral character. The Journeyman Plumber Exam must be passed with a minimum score set by the Washington board.

Fees & Costs

Obtaining your Plumber license in Washington requires a financial investment. The base licensing fee in WA is $300, which includes application processing and credential verification. Exam registration fees are separate and vary by testing center. Budget for approximately $450 total when accounting for all associated costs in Washington.

License Fee Calculator — Plumber in Washington

Base License Fee$300
Estimated Total$300

Renewal Process

Your Plumber license in Washington must be renewed every 3 years. The renewal fee in WA is $175. Washington requires completion of continuing education credits before renewal. Submit your renewal application at least 30 days before expiration to avoid late fees. Practicing with an expired license in WA can result in fines and disciplinary action.

License Expiry Calculator — Plumber in WA

Enter your license issue date to see when renewal is due. Washington requires renewal every 3 years.

Additional Information

Washington takes professional licensing seriously, and the Plumber field is no exception. The state board in WA regularly updates its requirements to align with industry standards and protect public safety. As a licensed Plumber in Washington, you will be expected to maintain high ethical standards and stay current with developments in your field. The WA licensing board provides resources and support to help professionals meet their obligations.

Document Checklist — Plumber

0 of 5 documents ready

Frequently Asked Questions

License Reciprocity: Can I Use My Washington Plumber License in Other States?

Reciprocity varies by state. Always verify with the destination state's licensing board before practicing.

Destination StateReciprocityNotes
Alaska (AK) PartialAK requires additional exam or paperwork for WA license holders.
Alabama (AL) FullAL accepts WA Plumber license via reciprocity agreement.
Arizona (AZ) FullAZ accepts WA Plumber license via reciprocity agreement.
Arkansas (AR) NoneAR does not recognize WA Plumber license. Full re-application required.
Colorado (CO) PartialCO requires additional exam or paperwork for WA license holders.
Delaware (DE) FullDE accepts WA Plumber license via reciprocity agreement.
California (CA) PartialCA requires additional exam or paperwork for WA license holders.
Florida (FL) FullFL accepts WA Plumber license via reciprocity agreement.

Where to File Locally in Washington

Visit a licensing department office near you for in-person assistance.

Olympia

1125 Washington St SE, Olympia, WA 98504

(360) 236-4700

Mon-Fri 8:00 AM - 5:00 PM

Seattle

600 4th Ave, Seattle, WA 98104

(206) 684-8484

Mon-Fri 8:00 AM - 5:00 PM

Spokane

808 W Spokane Falls Blvd, Spokane, WA 99201

(509) 625-6250

Mon-Fri 8:00 AM - 5:00 PM

Tacoma

747 Market St, Tacoma, WA 98402

(253) 591-5000

Mon-Fri 8:00 AM - 5:00 PM

Vancouver

415 W 6th St, Vancouver, WA 98660

(360) 487-8600

Mon-Fri 8:00 AM - 5:00 PM

Official Washington Resources

Always verify requirements directly with the Washington state board. Regulations may change.

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Disclaimer

US License Guide is a private informational resource and is not affiliated with, endorsed by, or connected to any federal, state, or local government agency. The information provided on this website is for general guidance purposes only and should not be considered legal or professional advice. Licensing requirements, fees, and procedures may change without notice. Always verify current requirements directly with your state's official licensing board before making any decisions. Use of this site does not create any professional-client relationship.