Lewis County · Centralia, Chehalis, Toledo & the Cowlitz valley

Mold Inspection in Lewis County.

Independent mold inspection across Lewis County, from the Twin Cities of Centralia and Chehalis to Toledo, Winlock, Morton, and Pe Ell. Dispatched from our Toledo office. ISO/IEC 17025 lab, plain-English reports, and zero remediation upsell. We test, we don’t sell the fix. Mold inspections start at $150.

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ISO/IEC 17025 lab Thermal imaging included No remediation upsell

$150Mold inspections start at

100+Mold types tested

ISO 17025Accredited lab

2-3 dayLab turnaround

Why Mold Shows Up in Lewis County

Lewis County is river country. The Chehalis, Skookumchuck, Newaukum, and Cowlitz rivers all run through it, and the Chehalis basin floods on a regular cycle: 1996, 2007, and 2009 all put water into homes around Centralia and Chehalis. Add a long wet season, older housing in the towns, and rural homes on vented crawlspaces, and hidden moisture is the most common thing we find.

Cities We Serve in Lewis County

Local, independent, and dispatched from our Toledo office. Tap your town for local mold inspection details.

Centralia →

Mold inspection in Centralia, including flood-affected and older downtown-area homes.

Chehalis →

Mold inspection in Chehalis, from historic hillside homes to the river-bottom neighborhoods.

Toledo →

Home of our Lewis & Thurston County office. Mold inspection across south Lewis County.

Winlock

Rural homes and farm properties around Winlock, a short drive north of our Toledo office.

Napavine

Newer subdivisions and older rural homes along the I-5 corridor between Chehalis and Winlock.

Vader

Older homes and wooded lots just south of Toledo, near the Cowlitz County line.

Morton

East Lewis County on US 12, where heavy rain and tree cover keep crawlspaces damp.

Mossyrock

Homes and lake cabins near Mayfield and Riffe lakes. A closed-up cabin can build humidity for months.

Pe Ell

Older timber-town homes in the upper Chehalis River valley in far west Lewis County.

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 Lewis County 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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Lewis County Inspections FAQ

The questions we hear most from Lewis County homeowners, buyers, and agents.

The entire county, including Centralia, Chehalis, Toledo, Winlock, Napavine, Vader, Morton, Mossyrock, and Pe Ell, dispatched from our office in Toledo, WA. Very rural properties may include a small travel fee, always quoted in writing first.

Complete mold inspection (from $150, thermal imaging included), with optional air and surface lab sampling. Every inspection is independent and lab-backed. We never sell the remediation, so the report stays honest.

A complete mold inspection starts at $150, covering up to 1,500 sqft (+$50 per additional 500 sqft) with thermal imaging included. Lab samples are optional add-ons. Most competitors charge $1,500–$2,500 for the same scope.

Our Lewis & Thurston County office is in Toledo, WA, in south Lewis County. Call (360) 670-3367 or book online and we will reply the same day.