Browse Washington Contractor Classifications
Exam prep for the Washington State Dept. of Labor & Industries (L&I).
Getting your Washington contractor license? Contractor Pathway offers an original, exam-focused study guide and four full-length practice exams for every Washington classification that requires a state board exam — currently 4 courses across Electrical, Plumbing and Building / General Contractor. Choose your classification below and study with 30-, 60-, or 90-day access at $99, $129, and $169.
Who licenses contractors in Washington
These are the Washington classifications we build exam prep for, each licensed by its responsible board:
| Trade area | Licensing authority | Exam basis |
|---|---|---|
| Electrical | Washington State Department of Labor & Industries (L&I) | National Electrical Code (NEC) |
| Plumbing | Washington State Department of Labor & Industries (L&I) | Adopted plumbing & fuel-gas codes |
| Building / General Contractor | the responsible Washington state licensing authority | Adopted building code (IBC / IRC) |
Always confirm the current code edition, experience requirements, fees, and passing score with the board and testing vendor before you schedule. Contractor Pathway is an independent exam-prep provider and is not affiliated with any Washington board or testing vendor.
How to get licensed in Washington
- Meet the experience requirement. Each classification requires documented on-the-job hours (and, for senior licenses, time as a licensed journeyman). A registered apprenticeship is a common path.
- Apply to the board for your trade, submit fees and proof of experience, and get approved to test.
- Pass the exam. Washington trade exams are typically open book against the adopted code, with a passing score commonly around 70%. Speed at finding and applying the right code section is what separates passers from re-testers.
- Hold and renew the license on its cycle, including any continuing-education and code-update hours.
Choose your Washington classification
Each course includes a comprehensive 5,000-plus-word study guide — worked calculations, code-section breakdowns, common exam traps, a glossary, and a 30/60/90-day study plan — plus four full-length practice exams matched to the topic weightings of the Washington test.
Washington contractor licensing — FAQ
Does Washington require a contractor exam?
For general and specialty contractor registration, no. Washington (Labor & Industries) registers contractors under Chapter 18.27 with a bond, insurance, and fee – there is no trade or law exam simply to register.
What does Washington contractor registration require?
A surety bond ($30,000 for general contractors, $15,000 for specialty contractors as of July 2024), general liability insurance ($200,000 public liability and $50,000 property damage, or $250,000 combined), and the registration fee.
Which Washington work requires passing an exam?
If you perform electrical, plumbing, or elevator work, you must pass the applicable L&I trade exam in addition to holding your contractor registration.
Which Washington credentials do you build courses for?
The exam-based specialty trades such as electrical and plumbing. If you only need general or specialty contractor registration, you may not need an exam at all – confirm with L&I.
How long should I study for the Washington exam?
Most candidates do well on a 30-, 60-, or 90-day plan depending on experience, which is why we offer access at all three terms ($99 / $129 / $169). Each guide includes a day-by-day study plan.