What a Home Inspection Covers (and What It Doesn’t): A Seattle Buyer’s Guide

Oct 16, 2026 · By Ryan Palardy

The 60-second version

A home inspection is a visual, non-invasive review of the readily accessible parts of a house, done by a licensed inspector on a single day, with a written report at the end. It covers the big systems: roof, structure, exterior, plumbing, electrical, heating, interior, insulation and ventilation, site drainage, and attached garages. It does not tell you whether the house meets code, what is hiding inside the walls, or what will break next year.

In Seattle, expect to pay roughly $500 to $900 for a general inspection on a single-family house, plus $200 to $400 for a sewer scope. You can do it before you write an offer (a pre-inspection) or after you are under contract (an inspection contingency). Each has real tradeoffs, and in a competitive market the choice shapes your offer.

We will suggest inspectors we trust. You pick, you sign the inspector’s contract, and you own the inspection report. Inspections and inspectors aren’t perfect, but the inspection is still the single best tool you have for finding risk and planning around it.

What a home inspection actually is

Washington law defines home inspections narrowly. Under RCW 18.280, a licensed home inspector performs a visual and noninvasive inspection of the readily accessible systems and components of a home and reports on their general condition at the time of the inspection.

• Visual. The inspector looks, operates normal controls, and uses basic tools (moisture meter, outlet tester, flashlight, sometimes a thermal camera). No cutting, no drilling, no opening outlets, no moving the seller’s furniture.
• Noninvasive. Nothing gets opened up. If the crawlspace hatch is screwed shut or the attic is packed with the seller’s holiday bins, those areas get noted as inaccessible, not inspected.
• Readily accessible. If a ladder, a crawl, or a reasonable effort gets them there, they go. If it would take disassembly or a risk to their safety, they do not.
• At the time of the inspection. The report is a snapshot of one afternoon. A water heater that worked on Tuesday can fail on Friday, and the report was still accurate.

The output is a written report, which in practice usually arrives the same night or the next morning. A good report runs 40 to 80 pages with photos, flags items by severity, and tells you what was not inspected and why. That last part is the most skipped section and the most important one. It is your map of the unknowns.

What a home inspection covers

Washington’s Standards of Practice (WAC 308-408C) spell out twelve areas every licensed inspector has to look at. Here is what each one means on a Seattle house.

Two notes. First, the inspector is reporting on condition, not giving you a repair quote. Second, the table above is the floor, not the ceiling. The best inspectors in our market go well past the minimum, and that is a big part of why we recommend who we recommend.

What a home inspection does not cover

This is the section most buyers skip and most agents under-explain. WAC 308-408C-030 lists the exclusions, and the pre-inspection agreement you sign repeats them. The important ones:

Code compliance. A home inspection is not a code inspection. The inspector is not required to determine compliance with codes, regulations, laws, or ordinances, and almost none of them will. A 1925 Wallingford Craftsman does not meet 2026 code and never will. That is fine. What you want to know is whether the work that has been done since was done safely, and whether the house is performing. Permit history is a separate question, and one we pull ourselves through the Seattle DCI and King County permit portals.

Anything concealed. Inside walls, under floors, behind finished basements, under the seller’s rug, behind the stacked boxes in the garage. If the inspector cannot see it, it is not inspected, and the report will say so.

Cosmetic condition. Scuffed floors, dated tile, and paint color are not defects.

Future performance and remaining life. An inspector can tell you a roof is likely near the end of its life. They cannot tell you it will leak in March.

Specialized systems and specialized testing. Sewer lines, septic, wells, oil tanks, pools, irrigation, security systems, solar, central vacuum. Also environmental testing: mold, asbestos, lead, radon, water quality. Each of those is its own inspection with its own specialist (more on that below).

Wood-destroying organisms, mostly. Washington inspectors are licensed to report on visible evidence of pests and rot, but a full pest inspection is a separate credential under the Department of Agriculture. Most general inspectors will note what they see and stop there.

Engineering opinions. The inspector can say a beam looks undersized or a foundation is cracked. Only a structural engineer can truly tell you what it means and what to do about it.

Appliances, beyond the basics. Most inspectors will run the dishwasher and the range. They will not test every cycle on the washer or confirm the fridge holds 37 degrees.

REAL TALK. The exclusion list is not the inspector dodging work. It is the honest boundary of what a visual, one-day, non-destructive look at a house can tell anyone. The buyers who get burned are the ones who read the report as a warranty. It is not one.

Who home inspectors are and how Washington trains them

Washington is one of the states that actually licenses home inspectors, and has since 2009. The Department of Licensing requires:

• 120 clock hours of board-approved classroom instruction (Fundamentals of Home Inspection)
• 40 hours of field training under a licensed inspector, including at least five real inspections
• A passing score on the National Home Inspector Examination plus a Washington-specific module on state law, the Standards of Practice, and ethics
• 24 hours of continuing education every two years to keep the license

The state also adds a conflict-of-interest rule that buyers should know about: a licensed inspector cannot perform repair work on a house they inspected for one year after the report. That is on purpose. You do not want the person diagnosing the problem to be the person bidding on the fix.

What the license does not tell you is whether the inspector is any good. The credential looks the same on every wall, and a resume does not predict much. We have worked with inspectors who came out of the trades and were careless, and inspectors with no construction background who were relentless. What separates the good ones is not where they came from. It is how they work: hundreds of inspections a year in this housing stock, the discipline to spend the full three hours and actually get into the attic and the crawlspace, the curiosity to chase a stain to its source instead of just noting it, a report you can read and act on, and the honesty to say “I don’t know, get a specialist” when that is the right answer. The inspectors we recommend have those habits. We know because we have stood next to them in a few hundred crawlspaces. I went through inspection training myself so I could read a report the way an inspector does and ask the questions the report does not answer.

When the inspection happens: pre-inspection vs. inspection contingency

In most of the country you inspect after you are under contract. In Seattle you often inspect before you write the offer to increase your odds of getting the home in a competitive scenario.

Inspection contingency (Form 35). You make an offer that includes an inspection contingency, the seller accepts, and you have a set number of days (we typically write 3 to 5) to inspect and either approve, ask for repairs or a price reduction, or walk away with your earnest money.

• Upside: you only pay for an inspection on a house you have actually won. You have leverage to negotiate repairs because the seller is now off the market and motivated to keep the deal together. You can walk away if anything on the inspection bothers you or if you cannot come to terms with the seller on repairs.
• Downside: in a multiple-offer situation, an inspection contingent offer competes against offers with no contingency at all. Sellers and listing agents read an inspection contingency as risk, and they price that risk against you. On a hot listing it can cost you the house.

Pre-inspection. You schedule an inspection during the showing window, before offers are due, often on a tight timeline and with other buyers’ inspectors in the house the same week. You then write an offer with no inspection contingency because you already know what you are buying.

• Upside: your offer is clean, which is the point. In a competitive bid, a clean offer at the same price usually beats a contingent one. You also negotiate price with full information, up front.
• Downside: you pay $500 to $900 per house, and you may do this two, three, or four times before you win.  Once you waive the contingency, what the inspection found is your problem to price in, not the seller’s to fix.

What we actually do. It depends on the listing, and we will tell you which one fits. On a house with 12 showings on the first Saturday and a Tuesday review date, we are usually recommending a pre-inspection and a focused one: general inspector plus sewer scope at minimum, roof or structure specialist if the general inspector or our own walk-through raises a flag. On a house that has sat for three weeks, we write the contingency and use the full window.

One more option that gets used more than people realize: a seller’s pre-listing inspection. Some listing agents (we do this on our own listings) commission an inspection before going to market and share it with every buyer. It is a real report, but remember who hired the inspector. Read it, but always do your own if you’re serious about the house.

REAL TALK. Waiving an inspection contingency without doing a pre-inspection is a bet that the house is fine. But it comes with unknown risks. Maybe you think it’s worth it. We never do, but ultimately, the decision is yours to make.

Specialized inspections and when to order them

Costs above are approximate 2026 ballparks for the Seattle area.

Two rules of thumb. First, order the sewer scope on every house if one hasn’t been done recently by the seller (sewer scopes are functionally the same regardless of who ordered them). They are cheap, and the downside they protect against is enormous. Second, let the general inspection drive the rest. Paying for a structural engineer on a house with no symptoms is money you could have spent on the next house.

One thing to note: on short timelines, it is often impossible to get specialized inspectors to a home. This is particularly the case when doing pre-inspections. Also, every single inspection report we’ve seen recommends at least one follow-up inspection. The reason: it helps the general inspector disclaim liability later if they can say they told you to seek a specialist. We will use our discretion on which specialists are necessary versus nice to have, in all cases helping you make an informed decision.

How to hire an inspector (we suggest, you decide)

We keep a short list of inspectors we have watched work over hundreds of transactions, and we will hand it to you. Here is the part that matters: you choose, you call, and you sign the inspector’s pre-inspection agreement. The contract is between you and the inspector. We are not a party to it, and by Washington rule the inspector’s duty runs to you, the client, not to us. That is by design, and it is why the choice is yours.

If you want to vet someone yourself, or compare our list against someone a friend used, here is what to ask.

1. Are you licensed in Washington, and what is your license number? Verify it on the DOL license lookup. Takes 60 seconds.
2. Can I see a sample report? You want photos, severity ratings, plain-English explanations, and a clear list of what was not inspected. If the sample is a checklist with boxes, keep looking.
3. How long will you be on site? For a 2,000-square-foot house, two and a half to three and a half hours for a full inspection. A 75-minute inspection on that house is a walk-through and insufficient.
4. Do you carry errors-and-omissions insurance? Not required in Washington. We prefer inspectors who carry it.
5. Can I attend, and will you walk me through it at the end? The answer should be yes. The 20-minute summary at the end is worth more than the report.
6. What is in your pre-inspection agreement? Read the liability section before you sign. Almost every agreement in the industry caps the inspector’s liability at the fee you paid. More on why that matters next.

Show up for the inspection. Walk with the inspector. Ask what they would fix first if it were their house. One of us will be there too, because the inspection is where our construction-side view earns its keep: when the inspector says the deck ledger has no flashing, we can tell you on the spot what that costs to fix and whether it changes the offer.

What happens if the inspector misses something (in real life)

I practiced law before I sold houses, so I will give you the lawyer’s answer and then the real one.

The lawyer’s answer: you may have a claim for negligence or breach of contract if the inspector failed to report a defect that a reasonably careful inspector would have found and reported under the Standards of Practice. Washington recognizes that claim.

The real answer: your recovery is usually small, and here is why.

• The contract caps it. Nearly every pre-inspection agreement in the industry limits the inspector’s liability to the inspection fee, and many require arbitration instead of court. You signed it. Washington courts have generally enforced these limitations when they are clear and conspicuous. So the practical ceiling on most claims is $500 to $900.
• You have to prove it was visible that day. The standard is what a reasonable inspector could see on a visual, non-invasive inspection at that moment. A leak that was behind drywall, a crack that opened over the winter, a furnace that died in year two: none of those are the inspector’s miss. The defects that actually qualify are the ones that were in plain sight and left out of the report, and those are rarer than buyers think.
• The report protects the inspector. Every report has a section listing what was not inspected and why, plus general limitations language. If the problem traces to an area the report flagged as inaccessible, the inspector did their job.
• Insurance is optional. If the inspector carries E&O coverage, a legitimate claim has somewhere to go. If they do not, you are chasing a sole proprietor, and even a win may not be collectible.

So what does a real miss look like in practice? Usually it goes like this. You find the problem a few months in. You call the inspector. A good one comes back out, looks at it, and if they blew it, they say so and refund the fee, sometimes with an apology and a referral. A defensive one points to the limitations section. If the dollar amount is in small claims range (up to $10,000 in Washington) and the miss was obvious, small claims court is a real option and does not require a lawyer. Above that, the arbitration clause and the liability cap usually make a lawsuit a losing proposition on cost alone.

REAL TALK. The inspection fee buys you information, not insurance. If you want financial protection against the house breaking, that is what a home warranty, a repair reserve, and a price negotiated with the defects already factored in are for. Not a lawsuit.

One more thing an attorney will tell you: the seller’s disclosure (Form 17) is a separate and sometimes stronger path. If a seller knew about a defect and did not disclose it, that is a different claim with different remedies. Keep your inspection report. It becomes evidence of what was and was not visible on the day you bought.

(This is general information, not legal advice for your situation. If you think you have a claim, talk to a Washington real estate attorney.)

Things will still break: the natural limits of any inspection

Every house has secrets, and some of them are not discoverable by anyone until you live there. We say this to every buyer before closing so it does not land as a surprise in month four.

The inspection is a snapshot. It cannot see:

• The slow leak inside the wall behind the shower that only shows up when the baseboard swells next spring
• The 1960s cast-iron drain line that scoped fine in October and cracked in the January freeze
• The water heater that passed inspection at 11 years old and failed at 11 years and three months
• The furnace blower motor that was quiet on inspection day and started squealing in December
• The neighbor’s drainage that floods your side yard only in the three atmospheric-river days a year
• And more…

This is not a failure of the inspection. It is the nature of a house. A house is a few hundred interconnected systems, many of them hidden, all of them aging at different rates, sitting in a climate that delivers 37 inches of rain a year. The first year of ownership is when you find out which ones were quietly waiting.

The practical move is to plan for it. We tell buyers to set aside 1 to 2 percent of the purchase price per year for maintenance and repairs, front-loaded in year one, and more if the house is pre-1950 or the inspection found deferred maintenance. On a $900,000 Ballard house that is $9,000 to $18,000. Having that reserve is the difference between a leak being an annoyance and a crisis.

Why the inspection is still your best defense

After all of that, you might wonder why we push so hard for inspections. Because the alternative is buying a $900,000 asset blind.

The inspection does three things no other step in the transaction does:

1. It finds the expensive stuff while you can still do something about it. Sewer lines, foundations, roofs, electrical panels, oil tanks. These are the five-figure items, and a $700 inspection plus a $300 scope finds most of them most of the time. In an inspection contingency, that means a repair credit, a price reduction, or a clean exit. In a pre-inspection, it means you write a number that reflects what you know.
2. It converts unknowns into a plan. A good report, read with someone who knows construction, becomes a prioritized to-do list with dollar figures. Fix the grading and the downspouts this fall ($1,500). Replace the water heater before it fails ($2,200). Budget for the roof in three years ($18,000). Watch the hairline foundation crack and recheck it next year ($0). That is what we mean when we say we run every deal through a cost-to-fix lens. The report is the raw material.
3. It tells you what you do not know. The inaccessible-areas section and the limitations list are a map of your remaining risk. Crawlspace half inaccessible? That is where your first-year reserve money is pointed.

An inspection does not eliminate risk. Nothing does. It moves the risk from unknown to known, and known risk can be priced, negotiated, insured, reserved for, or walked away from. Unknown risk just shows up.

That is the whole argument. Spend the money. Show up. Read the whole report, especially the boring part at the end. And bring someone who can tell you what the findings actually cost to fix.

Home inspection FAQ

How much does a home inspection cost in Seattle? Roughly $500 to $900 for a general inspection on a single-family house in 2026, depending on size and age. Add $200 to $400 for a sewer scope and $150 to $300 for an oil tank sweep. Condos run less, typically $350 to $550.

How long does a home inspection take? Two and a half to three and a half hours for a typical Seattle single-family house. More for larger homes and homes with complications.

Does a home inspection check for code violations? No. Washington’s Standards of Practice specifically exclude code compliance. The inspector reports on condition and safety, not whether the house meets current code. Permit history is a separate check.

Should I do a pre-inspection or an inspection contingency? It depends on the listing. On a competitive listing with a review date, a pre-inspection lets you write a clean offer. On a listing that has sat, an inspection contingency gives you leverage and an exit without paying to inspect houses you do not win.

Can I use the seller’s inspection report? You can read it, and you should. The inspector was hired by the seller, so hire your own if the purchase is large enough to matter, which in Seattle it always is.

What happens if the home inspector misses something? In practice, most pre-inspection agreements cap the inspector’s liability at the fee you paid and require arbitration. A real miss (visible, in scope, omitted from the report) sometimes gets a refund or a small-claims recovery. Concealed and later-developing defects are not the inspector’s responsibility.

Do I need a sewer scope in Seattle? Yes on nearly every house older than 1990, and we recommend it on most newer ones. The side sewer is the owner’s responsibility to the main, and replacement runs $15,000 to $40,000 or more in a bad case.

Do I need a radon test in Seattle? Usually not. Most of King County is low-risk (EPA Zone 3). Consider it in parts of Snohomish and eastern King County. We rarely see these done.

Who picks the home inspector? You do. We will give you a short list of inspectors we trust, but you choose, you sign the agreement, and the inspector works for you.

Are home inspectors licensed in Washington? Yes. Washington requires 120 hours of classroom training, 40 hours of supervised field training with at least five inspections, a national and state exam, and 24 hours of continuing education every two years. Verify any license at dol.wa.gov.

BUYING IN SEATTLE AND WANT SOMEONE WHO CAN READ THE INSPECTION REPORT LIKE A CONTRACTOR?

We show up to every inspection, translate the findings into real repair costs, and tell you whether the house is worth it. No hard sell.

Ryan Palardy, JD, is a Real Estate Agent and Washington Attorney with Get Happy at Home at Compass, voted #1 Real Estate Team in the PNW in the Seattle Times Best in the PNW 2026. He practiced law before moving into real estate in 2021 and completed home inspection training so he could read a report the way an inspector does.