Washington Contractor License and Building Codes

State of Washington Contractor & Building Information

Washington State Department of Labor & Industries

Hiring a Contractor in Washington
How to protect yourself when hiring a contractor, electrician or plumber. Make sure they are licensed using our online search. Make sure contractors are bonded and insured and have covered their employees for workers compensation.
For complete information visit: Hiring a Contractor in Washington.

National Association of State Contractor’s Licensing Agencies (NASCLA)
Washington State Department of Labor & Industries

Verify a Washington Contractor License
Be an informed consumer and make sure a contractor is registered, actively licensed, with a bond and insurance, and an electrician, plumber, elevator mechanic or manufactured home installer is certified (licensed) in Washington.
To Verify a Contractor in the State of Washington: Verify a Washington Contractor License

Washington ICC International Code Council Building Codes
For Washington ICC Building Code information visit: Washington ICC Building Codes.

Washington State Building Code Council
For complete building code information visit: Washington Building Codes.

Washington Building Permits and Inspections
For complete information visit: Washington Building Permits and Inspections.

Washington Electrical Codes

NEC® National Electrical Code Adoption: 2014
The 2014 National Electrical Code, with Washington State amendments, becomes effective on July 2014.

Please Note: Due to the nature of the electrical code adoption process, we cannot guarantee complete accuracy of this information. Please notify us of any changes you may be aware of.

Washington Energy Codes

The Washington Energy Code is adopted and required by the Washington Energy Office. This code sets minimum energy efficient buildings.
For complete information visit: Washington Building Energy Codes Program.

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Home Electrical Wiring

All home electrical wiring projects should be performed correctly by trained and qualified individuals who understand the principles of electrical circuit wiring and the basic fundamentals of home construction. Detailed information is provided throughout areas of this website about the complexity of specific projects to help assist with you to understand the scope of work involved.
The following categories will provide more specific information for each project - below is an Example:
Electrical Project Skill Level:
Intermediate to Advanced - Best performed by a Licensed Electrical Contractor.
Electrical Tools Required:
Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time:
Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety:
Identify the electrical circuits found in the project area, turn them OFF and Tag them with a Note before working with the electrical wiring.
Home Electrical Parts and Materials:
Electrical parts and materials should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections:
Installing additional home electrical wiring should be done according to local and national electrical codes with a permit and be inspected.