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Grafton, WI· pop. 11,527

Mold Inspectors in Grafton, Wisconsin

Grafton is a city in Wisconsin, home to roughly 11,527 residents. Its humid continental climate brings high humidity (60–80% annual average), which makes local homes prone to Cladosporium and Aspergillus growth after leaks, flooding, or poor ventilation. Compare mold inspection, testing, and air-quality professionals serving Grafton below. Wisconsin has no statewide mold license, so verify each inspector's IICRC or ACAC certification and insurance.

Mold inspectors serving Grafton

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Wisconsin Mold Information
Climate Zone
Humid Continental
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

Lake-effect humidity, harsh winters with ice damming, and aging housing stock are the dominant drivers.

State licensing

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

Local factors
  • Grafton's mix of older and newer homes means moisture issues range from crawl-space humidity to modern-build envelope condensation.
  • High regional humidity makes mold prevention a year-round concern, not just an after-a-leak fix.

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

Common mold-inspection services

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