Washington State has one of the more structured home inspector licensing programs in the country. If you are planning to inspect homes in Clark County, the greater Vancouver area, or anywhere else in Washington, here is exactly what the licensing process involves and how long it realistically takes.
Who Licenses Home Inspectors in Washington?
Home inspectors in Washington are licensed by the Washington State Department of Licensing (DOL) under RCW 18.280. The state has specific requirements that differ from Oregon in a few important ways, most notably the requirement to complete a set number of field inspections under supervision before you can work independently.
Step 1: Complete the Required Education
Washington requires applicants to complete 120 hours of approved home inspection education before applying for a license. The coursework must cover the specific subject areas outlined in Washington’s home inspector rules under WAC 308-408C.
These 120 hours can be completed through approved in-person programs or accredited online courses. An intensive full-time schedule can get you through this in two to three weeks. A part-time student working around a day job may take two to three months.
Realistic timeline for this step: two weeks to three months.
Step 2: Complete 40 Supervised Field Inspections
This is where Washington’s requirements are more demanding than Oregon’s. Before you can be fully licensed in Washington, you must complete 40 home inspections under the direct supervision of a licensed Washington home inspector. These are called the field training requirement.
Your supervising inspector must be licensed in Washington and willing to mentor you through this process. Finding a supervisor can be the hardest part of this step. Not all licensed inspectors take on trainees. Once you find one, completing 40 inspections typically takes two to six months depending on how busy the supervisor is and how many inspections per week you can participate in.
Realistic timeline for this step: two to six months.
Step 3: Pass the Home Inspector Exam
Washington accepts the National Home Inspector Examination (NHIE) as the required licensing exam. You must pass this exam before your license application will be approved. Most applicants take the exam after completing their coursework and during or after their supervised field inspections.
Scheduling an exam appointment typically takes one to two weeks. The NHIE is administered at testing centers throughout Washington.
Realistic timeline for this step: one to two weeks to schedule and sit the exam.
Step 4: Submit Your License Application to the DOL
Once you have completed your education, your 40 supervised inspections, and passed your exam, you submit your application to the Department of Licensing. The application requires proof of all three, plus proof of errors and omissions insurance and general liability insurance.
DOL processing times vary. Most applicants receive their license within two to four weeks of submitting a complete application.
Realistic timeline for this step: two to four weeks.
Total Timeline: Oregon vs. Washington
| Step | Washington Minimum | Washington Typical |
|---|---|---|
| 120-hour education | 2 to 3 weeks | 1 to 3 months |
| 40 supervised inspections | 2 months | 3 to 6 months |
| NHIE exam | 1 week | 1 to 2 weeks |
| DOL application | 2 weeks | 2 to 4 weeks |
| Total | 3 to 4 months | 5 to 12 months |
The supervised field inspection requirement is the biggest variable. If you find a willing supervisor quickly and can complete several inspections per week, you can move through the process in four to five months. If it takes time to find a supervisor or their schedule limits you to a few inspections per month, the timeline stretches considerably.
Why the Field Requirement Is Actually a Good Thing
Washington’s requirement for 40 supervised inspections before independent licensing produces better-prepared inspectors than states with no field requirement. By the time you finish, you have seen dozens of different homes and building systems. You have practiced writing reports, talking to clients, and moving through a property efficiently.
If you are interested in whether a construction background matters in this field, see our post Can You Become a Home Inspector with No Construction Experience?
Dual Licensing: Oregon and Washington
If you plan to work in both states, you need a separate license for each. There is no reciprocity agreement between Oregon and Washington. You must meet each state’s requirements independently.
Russ Motyko of Trusted Home Inspections holds licenses in both Oregon (OCHI #1898) and Washington (#1856), which allows him to serve clients throughout the Portland metro area and Clark County without restriction. Learn more about his background and credentials.
Related Reading
For the Oregon-specific licensing breakdown, see How Long It Takes to Get Licensed in Oregon. For the full career picture including income, see Is Home Inspection a Good Career? and How Much Do Home Inspectors Make?