Mold Professionals in Johnson County, Indiana

County seat: Franklin  ·  Population: 168,313

Johnson County, south of Indianapolis, includes Franklin, Greenwood, and Edinburgh. The county's mix of suburban development and rural farmland means housing ranges from new subdivisions in Greenwood to century-old homes in Franklin's courthouse district. Basement moisture is the most common mold trigger, particularly in older homes with block foundations built on the county's clay-rich soil. Greenwood and the northern suburbs along US-31 have grown rapidly, and some newer homes develop mold from construction defects — improperly sealed windows, insufficient attic ventilation, or vapor barriers installed incorrectly. Sugar Creek and Young's Creek flood zones affect properties in Edinburgh and southwestern Johnson County. Several mold professionals are based directly in Johnson County, with many more serving the area from Indianapolis and the surrounding metro. Prioritize IICRC AMRT-certified companies for remediation and ACAC-certified inspectors for testing. Indiana has no mold license — these credentials are your best quality indicator. Browse professionals below.