Solar Installer License in Washington - Exam Required

What the Washington Solar Installer Record Shows

Washington requires solar installer contractors to hold a Solar Contractor License (+ Electrical) before performing licensed work. Of 25 US states that license solar installer work, Washington's regime applies a partial screen, combining some but not all of the exam, bond, and insurance requirements seen in peer states. Licensing is administered through the Washington State Department of Labor & Industries, which issues the credential, maintains the public license roster, and adjudicates consumer complaints.

The specific entry requirements for solar installer contractors in Washington are: a qualifying exam, 2 years of documented work experience, no surety bond, liability insurance with at least $500K in coverage, and 10 hours of continuing education per renewal cycle. License fees in this classification run $150-$400. Additional notes from the licensing board: NABCEP certification highly recommended. Electrical license often also required.

For homeowners in Washington, verification is straightforward: use Washington State Department of Labor & Industries's official license lookup to confirm the license number is active, matches the contractor's legal business name, and has no disciplinary history attached. Ask for a copy of the license and the certificate of insurance before signing a contract, and request the surety bond provider if bonding is required. If defective work or non-performance occurs, the state complaint process is the formal path to recovery, file promptly, document everything, and retain copies of contracts, invoices, and correspondence.