State guide

Washington

Washington licenses home inspectors through the Department of Licensing under chapter 18.280 RCW. The licensing law created a phased transition: licenses could begin issuing July 1, 2009, and licensure became required beginning September 1, 2009.

Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.

Licenses home inspectors?
yes
Regulator
Washington State Department of Licensing; Home Inspector Advisory Licensing Board
License lookup
Official page →
File a complaint
Official page →

Official resources in Washington

Home Inspectors

Official Washington profession page for home inspector licensing, forms, exams, complaints, and laws.

Chapter 18.280 RCW

Official Washington home inspector statute chapter.

Exams: Home inspectors

Official DOL page summarizing Washington training and exam requirements.

Look up the status of a business or professional license

Official Washington professional license verification tool.

File a complaint against a licensed professional or business

Official DOL complaint page for licensed professions including home inspectors.

Key facts for Washington

What to do next

  1. Before hiring, use the DOL license lookup and confirm the inspector's license is active.
  2. If you are applying as a new inspector, complete the 120-hour course first, then arrange supervised field training with a licensed inspector.
  3. When filing a complaint, gather the inspection agreement, report, timeline, and supporting documents before submitting to DOL.

Helpful guides

Inspector license check →

Do you serve Washington? Get a featured listing for $30/month, clearly labeled as a paid placement.