Up front

Published third-party data puts inspection in the 100–500 dollar range nationally — A visual walk-through sits at the bottom of the range, and adding a camera survey of the buried line is what moves the figure upward. Every contractor prices independently, so treat that as a sanity check on a quote rather than a quote itself. The work itself is described under plumbing inspection, and the number that ends up on the invoice comes from licensed plumbers in Washington, not from this page. Local pages start with Wenatchee.

Reported cost data — reported ranges for inspection in Washington

Reported cost ranges, 2026. Ranges are published third-party figures, not quotes.
JobReported rangeWhat pushes it higher
Visual inspection$100–$200Property size, number of bathrooms and crawl space or loft areas to enter.
Camera inspection$250–$1,175Line length surveyed, missing cleanout access and a recorded copy of the footage.
Visual and camera inspection combined$350–$1,375Larger homes where both the interior system and the buried line are surveyed.
Published national range$100–$500Metro labor rates and a written report suitable for a property transaction.
Trip fee where one applies$150–$300Distance from the depot and properties outside the usual service radius.
Inspection priced by a second publisher$85–$300Scope differences between publishers, from a walk-through to a full system survey.

Not a quote. These are third-party reported ranges, sourced from Angi, "How Much Does a Plumbing Inspection Cost? [2025 Data]", angi.com/articles/plumbing-inspection-cost.htm, fetched 2026-08-11 · HomeGuide, "How Much are Average Plumbing Estimates? (2026)", homeguide.com/costs/average-plumbing-estimates, fetched 2026-08-11. Only a licensed contractor who has seen the job can price it.

Behind the price — the 5 factors that change the number

Pricing is set independently by each contractor, so this page lists what moves the number rather than a figure.

  1. 01

    Size and age of the property and number of fixtures

  2. 02

    Whether a sewer camera inspection is included

  3. 03

    Whether a written report suitable for a real-estate transaction is required

  4. 04

    Access to crawl spaces, attics and mechanical rooms

  5. 05

    Turnaround time if it is on a transaction deadline

The giveaway signs — is plumbing inspection actually the fix?

Paying for the wrong job is the most expensive mistake here. These are the signs that point to inspection rather than something else.

  • You are buying or selling a home
  • A home inspector flagged plumbing for a specialist review
  • The house is over 40 years old with unknown pipe material
  • You are about to remodel a kitchen or bathroom
  • Recurring problems with no identified cause

What the work involves — so a quote can be read line by line

  1. Supply piping material, condition and pressure are documented
  2. Drain, waste and vent system is checked, with a camera on the main where warranted
  3. Water heater age, venting, relief valve and pan are inspected
  4. Fixtures, shut-offs, hose bibs and visible connections are tested
  5. A written report is issued with prioritized findings

Inspection cost by city in Washington

Labor rates, permit fees and travel distance all differ across Washington, which is why the same job is not the same number in every market.

Washington markets with a dedicated inspection page
CityCountyPermit authority
Inspection in Seattle King CountySeattle Department of Construction and Inspections (SDCI)

Before anyone touches a pipe

Verify the license. It takes two minutes.

  • Who licenses the work: Washington State Department of Labor & Industries (L&I).
  • Who pulls the permit: the licensed contractor, never the homeowner.
  • What to ask for: the license number, the registered name behind it, and an insurance certificate issued to the property address.
Check a license numberL&I Washington licensing in full
Chrome faucet with running water
Independent licensed professionals

How to avoid overpaying for inspection

  • Get the scope in writing before the number: what is being replaced, what is being repaired, what is being left alone.
  • Ask whether the price is flat-rate or time-and-materials, and what the diagnostic charge covers.
  • Ask whether the permit and inspection fee is inside or outside the figure.
  • Ask what happens if the job opens up and turns out to be larger — get the change-order rule up front.
  • Confirm the warranty term on parts and on labor separately.
  • Verify the license number on the L&I register before any work starts.

Answers first

Rapid answers — inspection cost in Washington

Is a plumbing inspection worth it when buying a house?

On an older property, usually yes — a general home inspection is visual and rarely includes a sewer camera. The two findings that most often justify the cost are a failing sewer lateral and an obsolete supply pipe material, both of which are large numbers.

Does a plumbing inspection include a sewer camera?

Not by default. Ask explicitly, because the sewer lateral is where the expensive surprises live.

How long does an inspection take?

For a typical single-family home, commonly one to a few hours depending on size, access and whether a camera inspection is included.

Who handles the permit for inspection in Washington?

The licensed contractor pulls the permit — never the homeowner. If a contractor proposes skipping a required permit, treat that as the signal to stop and verify the license.

What warranty applies to the work?

Whatever the contractor offers in writing — PlumberWashington is not a party to the agreement. Ask for labor and parts warranty terms in the quote, and keep the license number with the paperwork.

How does the callback request work?

The 30-second form asks for a name, ZIP and the number to reach you on. The request routes to an independent licensed professional covering that area, and they call you back. Consent for marketing contact is optional — the request goes through with or without it.

Which areas does PlumberWashington cover?

All of Washington: the site lists every covered city with real ZIP codes, the county permit authority and nearby coverage, so requests route to a professional already working that area.

Is PlumberWashington a plumbing company?

No. Independent licensed professionals perform and contract the work directly with you. PlumberWashington routes the request and links every page to the official Washington license register.

Get connected

Inspection in Washington

Send the essentials — problem, ZIP, number. Routing finds the independent licensed pro for Washington, and the license register link is right on this page.

  • Requests handled around the clock
  • An independent licensed pro calls you back
  • No obligation to hire

Prefer a call back?

Thirty seconds now — an independent licensed plumber calls you back.

Records for this request are provided electronically; a paper copy is free on request and the agreement can be withdrawn at any time — electronic records notice.

Submitting without the box still sends the request. PlumberWashington is a referral service, not a plumbing contractor. Stop contact any time