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Saint John, MO· pop. 6,584

Mold Inspectors in Saint John, Missouri

Looking for mold inspection services in Saint John, Missouri? MoldInspectorsNearMe.com helps you find local mold inspection and mold testing professionals who serve your area.

Verified Select
Top choice for Saint John

Our top pick for Saint John is Aecom Technical Services, Inc.. Selection is based on credential authority, listing completeness, and any active state license we've cross-referenced from public registries.

Aecom Technical Services, Inc.
Clayton, MO
NY Mold Assessment Contractor

Verified Select is selected from public credential and state-license data — not paid placement. See How We Verify.

Mold inspectors serving Saint John

Unclaimed listing
NY Mold Assessment ContractorLicensed in NY (DOL)
Unclaimed listing
Texas Mold Remediation Contractor (TX-MRC)Licensed in TX (TDLR)
Unclaimed listing
NY Mold Assessment ContractorLicensed in NY (DOL)
Missouri Mold Information
Climate Zone
Humid Subtropical
Köppen primary classification
Humidity Level
High year-round (60–80% annual avg)
NOAA NCEI 1991–2020 normals
Common Mold Types
Cladosporium, Aspergillus, Penicillium
Per EPA mold guidance
Weather considerations

Tornado season + frequent basement seepage in St. Louis / Kansas City drives baseline mold-inspection demand.

State licensing

Missouri does not have a state-level mold-license requirement. Verify each pro's industry certifications (IICRC, ACAC, etc.) and proof of insurance before hiring.

Sources: NOAA climate normals; EPA mold guidance; state licensing authorities. See our data sources.

Common mold-inspection services

Nearby cities

Frequently asked questions

MoldInspectorsNearMe.com is a directory and lead-referral platform. We do not perform mold inspections. We do not provide medical advice. Listings shown above come from owner submissions, admin entries, and properly licensed data sources. See our disclaimer.