Chehalis · Lewis County seat

Mold Inspection in Chehalis, WA.

Independent mold inspection in Chehalis and central Lewis County, backed by an ISO/IEC 17025-accredited lab. Thermal imaging, plain-English reports, and zero remediation upsell — we don’t fix mold, we just tell you what’s there. Inspections start at $150.

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ISO/IEC 17025 lab Thermal imaging included No remediation upsell

Pacific Northwest home, Chehalis, Lewis County

$150Mold inspections start at

100+Mold types tested

ISO 17025Accredited lab

2-3 dayLab turnaround

Why Chehalis Homes Are Prone to Mold

Chehalis is the Lewis County seat, set where the Newaukum River joins the Chehalis. The low ground along both rivers, around the airport and the Interstate 5 corridor, has flooded repeatedly, most famously in 1996, 2007, and 2009. Up the hill from downtown, historic neighborhoods of early-1900s homes bring a different problem: original foundations and crawlspaces, plus generations of additions and remodels that can trap moisture where nobody can see it.

What’s Included in a Complete Mold Inspection

A thorough walkthrough, the right tools, lab-backed sampling on request, and a written report you can hand to insurance, your buyer, or your remediation contractor. No corners cut, no padding the bill.

Visual & moisture walkthrough

Every accessible area inspected — living spaces, bathrooms, kitchens, basements, crawlspaces, attics, utility rooms. We document moisture readings, humidity levels, and any visible signs of growth or water intrusion.

Thermal & infrared imaging

Thermal imaging reveals temperature anomalies behind walls and ceilings — the cold spots that indicate hidden moisture from leaks, condensation, or vapor intrusion. Included on every Complete Mold Inspection at no extra charge.

Optional air sampling

Air samples capture mold spores from the indoor environment and ship to the lab for species identification and concentration measurement. Most useful when there are health symptoms but no visible growth, or for real estate documentation.

Optional surface sampling

Tape-lift or swab samples from suspected growth, sent to the lab for confirmation and species ID. Especially useful when you can see something but don’t know if it’s mold — or which kind.

Written photo-documented report

A PDF report with every area inspected documented, photo evidence, moisture readings, lab results (when sampled), and clear plain-English recommendations. Formatted to share with insurance, realtors, or remediation contractors.

Honest pre-call

If your situation doesn’t actually need an inspection, we’ll tell you on the phone before booking. We make zero money turning away non-jobs — we just don’t want to charge you $150 for a problem that didn’t exist.

Don’t get spored into spending $2,500 on a mold inspector.

Full mold inspections in Chehalis start at just $150 — the most affordable, certified, quality-driven option in Washington State. Thermal scan included; the base covers up to 1,500 sqft (+$50 per additional 500 sqft). Optional add-ons: air samples $250 for the first (with an outdoor control sample) then $100 each, surface samples $100 each.

Use the calculator to estimate your total before you book.

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How a Mold Inspection Works

Four steps from first call to a written, lab-backed report you can hand to insurance, your buyer, or your remediation contractor.

Book online or call

Same-day reply. We confirm the scope, the address, and your timeline before locking the slot. No surprise fees.

On-site inspection

1.5 to 2 hours for a typical home. Visual walkthrough, moisture readings, thermal imaging, and any optional sampling you opted in to.

Lab analysis

Samples ship to our ISO/IEC 17025-accredited lab. Results come back in 2 to 3 days — full species identification and concentration data.

Written report delivered

Photo-supported PDF with findings, lab results, and recommendations. Ready to share with insurance, realtors, or remediation contractors.

Mold Inspection FAQ — Chehalis, WA

The questions we get most often when homeowners in Chehalis are deciding whether to book.

A complete mold inspection in Chehalis starts at $150 — the most affordable, certified, quality-driven option in Washington State. The base covers up to 1,500 sqft (+$50 per additional 500 sqft) with thermal imaging included. Optional lab samples: an air sample is $250 for the first (it includes an outdoor control sample) then $100 each additional, and surface samples are $100 each — you only pay for what you need. Most local competitors charge $1,500–$2,500 for the same scope.

A non-invasive walkthrough of every accessible area, thermal imaging to find hidden moisture, humidity and moisture readings, and a written photo-documented report with sampling recommendations. If you opt in to lab samples, the lab tests for 100+ mold species and other particles.

Common signs: persistent musty smell, visible discoloration, peeling paint, warped baseboards, ongoing respiratory symptoms after moving in, recent water damage. In Lewis County, the long wet season, past flooding, older homes, and crawlspaces all raise the baseline risk.

Yes. Older homes are a big part of what we do. The inspection is non-invasive: a walkthrough of every accessible area including crawlspaces and attics, moisture and humidity readings, and thermal imaging to find hidden moisture behind walls and ceilings without opening them up. You get a written, photo-documented report either way.

Yes. Reports are formatted for buyer/seller use and routinely shared with realtors, escrow officers, and insurance adjusters. We’re independent — we don’t perform remediation — so the report is unbiased. We work around tight closing timelines.

Yes. Chehalis and the surrounding Lewis County communities are part of our regular service area, dispatched from our office in Toledo, WA. Very rural properties may include a small travel fee, always quoted in writing before booking.

Only if the data says so. We don’t perform remediation — that’s a deliberate separation. Many of our reports conclude no remediation is needed, which is the answer customers most often want and rarely get from inspectors who also sell the cleanup.