Dual-Licensed OR/WA Home Inspector:
What Portland-Metro Agents Need to Know
Transactions that cross the Columbia River have different rules on each side. Here’s what dual-licensure actually means, and why it matters for your clients.
If you work the Portland metro, you work both sides of the Columbia. That’s just the market. Vancouver, Camas, Battle Ground, Ridgefield: those transactions are part of daily life for a lot of Oregon-licensed agents who also hold Washington licenses. But inspectors don’t always follow that same logic.
Not every inspector is licensed in both states, and some simply don’t take Washington work. When you’re putting together a transaction in Clark County, the question isn’t just “who’s a good inspector?” It’s “who’s actually licensed to be there?”
This post explains what dual-licensure means, what each state requires, and what agents should verify before booking an inspection on either side of the river.
What Each State Requires
Oregon and Washington both require home inspectors to be licensed, but the rules aren’t identical.
In Oregon, home inspectors are certified by the Oregon Construction Contractors Board (CCB) as Oregon Certified Home Inspectors (OCHI), and they must work under a business that holds a CCB license with a home inspector services endorsement. The state requires qualifying education or experience, a passing score on the National Home Inspector Examination, and 30 hours of continuing education every two years to keep the certification.
Washington handles inspector licensing through the Department of Licensing (DOL). Requirements include education, the same national exam, and documented field experience. Washington also has specific continuing education requirements to keep the license active.
The two programs are separate. An inspector can’t just assume their Oregon license carries over into Washington. They need to apply, qualify, and maintain a separate Washington license. That’s what dual-licensure means: two active credentials, two states.
Russ holds Oregon OCHI #1898 and Washington DOL #1856. Both are active. Both can be verified through their respective state agencies.
Why It Matters for Agents
The most obvious reason: legality. An inspector who works in Washington without a Washington license is operating outside the state’s licensing law, and your client loses the oversight and complaint process that come with a licensed inspector.
There’s also a competency angle. An inspector who works regularly in both markets understands the housing stock on both sides of the river. Clark County has its own construction patterns, its own era of homes, its own common defects. Vancouver and Battle Ground and Camas aren’t just Portland with different zip codes. An inspector who does one Washington inspection a year isn’t as sharp on that territory as one who covers it routinely.
For agents who are dual-licensed themselves, this is familiar territory. You hold two licenses because you’re doing business in two states. Your inspector should too. It’s not a minor administrative detail. It’s how the business is supposed to work.
What’s the Same, What’s Different
The physical inspection doesn’t change at the state line. The inspector still walks the roof, enters the crawlspace, tests systems, photographs findings, and writes a report. The scope, what gets inspected, is consistent.
What differs is the regulatory context. Oregon and Washington have different standards of practice for inspectors, different norms around what goes in a report, and different disclosure environments for real estate transactions. An inspector who only works one state may not know what the other expects.
Radon is a practical example. Both states have elevated radon in certain geologies. Testing protocols are the same: a 48-hour continuous monitor test, following EPA testing protocol. But awareness varies. Some Oregon clients don’t think about radon when buying in Clark County because “it’s a Washington thing” and vice versa. A dual-state inspector helps set accurate expectations for both markets.
Common cross-border inspection scenarios
- Portland-area buyers purchasing in Vancouver, Camas, or Battle Ground require a Washington-licensed inspector
- Investors evaluating properties on both sides of the river need an inspector who can handle each transaction legally
- Relocation buyers new to the region often don’t know state lines affect inspection licensing; agents should make this clear
- Older Clark County homes have similar issues to older Portland homes: galvanized plumbing, older panels, crawlspace moisture
- Radon testing is worth adding in both states, especially in lower-level living spaces
How to Verify an Inspector’s Credentials
This is simple and takes two minutes.
Oregon CCB license lookup: search the Oregon CCB website by license number or business name. You can confirm the license type, status, and whether it includes the Home Inspector endorsement.
Washington DOL lookup: the Washington Department of Licensing has a public license verification tool. Enter the inspector’s name or license number and confirm active status.
If an inspector can’t give you both license numbers, that’s your answer. A dual-licensed inspector knows their numbers. They put them on every report and on their website.
Russ has completed more than 3,000 inspections across the Portland metro and SW Washington. He is Oregon City’s only Certified Master Inspector®. Every inspection in Washington is performed under Washington DOL #1856. Every inspection in Oregon is performed under Oregon OCHI #1898.
What This Means for Your Clients
For buyers on either side of the river, dual-licensure means one inspector they can trust regardless of where the property is. They don’t have to find a new inspector every time a transaction crosses the state line. They know what they’re getting.
For agents, it simplifies your referral list. You have one inspector who can cover your full service area: Portland metro, Washington County, Clark County, and the surrounding communities. One relationship, one standard of work, no scrambling when a transaction lands in Washougal or Ridgefield.
If you want to see the service area in detail or schedule an inspection, visit the buyer’s home inspection page or the Clark County inspection page. The online scheduler handles bookings for both states.
For agents who want to understand more about Russ’s background and credentials, see the about page.
Dual-Licensed OR/WA Inspector FAQ
