What Does a Home Inspector Check? A Portland Area Buyer’s Guide

Jun 22, 2026 | Home Inspection

The short answer: A licensed Oregon home inspector checks the structure and major systems of a property — roof, foundation, electrical, plumbing, HVAC, and everything between. A standard inspection covers more than 400 individual items, takes two to four hours, and ends with a same-day written report loaded with photos and repair recommendations.


Most buyers spend more time researching which refrigerator to buy than understanding what a home inspection actually covers. That’s backwards. A thorough inspection is the best tool you have for knowing what you’re getting into before the ink dries.

Here’s exactly what to expect.


What’s Included in a Standard Oregon Home Inspection?

A licensed home inspector evaluates the physical condition of a property at the time of the visit — not cosmetics, and not code compliance (unless a violation creates a direct safety hazard).

Structural components: Foundation, floor systems, walls, ceilings, and roof structure. Inspectors look for settling, movement, water intrusion, and deterioration.

Roofing: Shingles, flashing, gutters, downspouts, and chimneys. Steep or inaccessible roofs are evaluated with an FAA-licensed drone rather than a ladder, which gives you better information and no “inspector couldn’t access” asterisks in your report.

Exterior: Siding, trim, windows, doors, and site drainage. In the Pacific Northwest, how water moves around a foundation matters enormously. Poor grading and clogged downspouts cause more long-term damage than most buyers realize.

Electrical: Main panel, wiring, outlets, and circuits. Common findings in older Portland-area homes include ungrounded outlets, double-tapped breakers, and outdated aluminum branch wiring.

Plumbing: Supply lines, drains, water heater, and fixtures. Slow drains, corroded pipes, and inadequate water pressure show up often in homes built before 1990.

HVAC: Heating and cooling equipment, ductwork, and ventilation. The inspector tests for operation but does not service the equipment — a tune-up, if needed, is a separate conversation with an HVAC tech.

Interior: Floors, walls, ceilings, stairs, and windows. Signs of moisture damage, structural movement, or years of deferred maintenance get flagged here.

Attic: Ventilation, insulation depth, and any signs of leaks or pest activity.

Crawl space: Foundation walls, beams, vapor barrier, insulation, and moisture levels. Oregon’s wet climate makes the crawl space one of the highest-value areas of the entire inspection — and one of the most commonly skipped by less thorough inspectors.


What Tools Does a Professional Home Inspector Use?

The difference between a good inspection and a great one often comes down to equipment.

Room By Room Home Inspection Services uses a crawlbot for tight or inaccessible crawl spaces, an FAA-licensed drone for steep roofs, and thermal infrared cameras to detect moisture and insulation gaps invisible to the naked eye. Gas analyzers and moisture meters round out the toolkit. Together, these tools catch problems that a visual-only walkthrough misses entirely.


What’s NOT Covered in a Standard Inspection?

Some issues require separate testing. These are the add-ons Portland-area buyers should understand before inspection day:

Radon: Radon is the second leading cause of lung cancer in the United States, according to the EPA — and Oregon has areas of elevated risk. The only way to know a home’s radon level is a dedicated radon test. The test is inexpensive.

Mold: Visible mold is noted during a general inspection, but a dedicated mold assessment — including air sampling — is needed to detect hidden growth behind walls or under flooring.

Sewer scope: For any home more than 20 years old, a camera run through the sewer line is worth every dollar. Root intrusion, collapsed sections, and bellied pipes are common in older Portland neighborhoods and expensive to repair after close.

Water quality: Testing for bacteria, heavy metals, nitrates, and other contaminants requires water samples sent to a certified lab. Well-water properties should treat this as standard.

Most of these can be bundled with your main inspection appointment, which saves you from coordinating multiple separate visits.


How Long Does a Home Inspection Take?

A typical single-family home in the Portland metro takes two to four hours. Add time for larger homes, homes with complex systems, or properties with obvious deferred maintenance.

The walkthrough at the end — where your inspector shows you the findings in person and answers questions — is often where buyers get the most value. Don’t send your agent alone. Be there.


When Do You Get Your Inspection Report?

Room By Room delivers reports the same day. Each report includes high-resolution photos, plain-English descriptions of findings, and repair or follow-up recommendations organized by system. The format is designed to work for buyers reading at home and for agents sitting across the table during repair negotiations.


Frequently Asked Questions

Can I be present during the home inspection?

Yes — and you should be. Walking the property with your inspector is the best way to understand the findings, ask questions in real time, and leave with a clear picture of what you’re actually buying.

Does Oregon require home inspectors to be licensed?

Yes. Oregon home inspectors must hold a license through the Oregon Construction Contractors Board (CCB) and carry an Oregon Certified Home Inspector (OCHI) number. Room By Room holds Oregon CCB #240112 and Oregon OCHI #2596, and is also licensed in Washington (WaHI #26003006). Always verify your inspector’s credentials before booking.

What’s the difference between a home inspection and an appraisal?

An appraisal determines market value for your lender. A home inspection evaluates physical condition for you, the buyer. They serve different purposes — and a standard purchase typically requires both.

How do I know if a home inspector is InterNACHI certified?

InterNACHI (the International Association of Certified Home Inspectors) is one of the country’s leading certifying bodies. Certified inspectors meet ongoing education requirements and follow a published Standards of Practice. Room By Room Home Inspection Services is InterNACHI-certified and carries a Certified Professional Inspector (CPI) designation.

Can a home inspection kill a deal?

An inspection can reveal problems. Whether those problems kill a deal depends on what they are and how the buyer and seller respond. Most inspection findings lead to negotiations, not cancellations — and knowing about issues before close is always better than learning about them afterward.


Schedule Your Portland-Area Home Inspection

Room By Room Home Inspection Services covers the full Portland metro area and Southwest Washington — Beaverton, Hillsboro, Portland, Gresham, Lake Oswego, Tigard, and beyond. As an InterNACHI-certified, veteran-owned company with more than 20 years of experience in the Pacific Northwest, we deliver detailed, same-day reports built for buyers and sellers who take the process seriously.

Questions? Call us at 971-393-7739

Schedule Your Inspection Today →