Mold Inspection St. Louis, MO.
Closer Look Inspectors offers mold inspection and mold testing in St. Louis, City of St. Louis, Missouri, through a local partner in our Missouri network.
Why moisture builds up in St. Louis homes
Parts of the city are karst, with sinkholes and caves south of downtown, and springs are still visible along the riverfront.
Water nearby: The city sits on the west bank of the Mississippi, the Missouri River joins it nearby, and the River des Peres was channelized or put underground in the 1920s and early 1930s.
Flood history: The Mississippi reached its highest level in over 150 years in 1973, and the lower River des Peres had some of the worst flooding of the Great Flood of 1993.
Setting: The city rests on bluffs and terraces 100 to 200 feet above the west bank of the Mississippi, over limestone and dolomite, with karst sinkholes and caves concentrated south of downtown.
Housing age and hidden moisture in St. Louis
Housing: Lafayette Square has houses that blend Greek Revival, Federal and Italianate styles, and Laclede's Landing has cobblestone streets and brick and cast-iron warehouses.
Where moisture and mold hide.
Illustrative photos of the kinds of homes and conditions found in this area.
Common questions.
What happened in the 1973 flood?
Is there karst under St. Louis?
Is radon a concern in south and central Missouri?
Why do crawlspaces and basements matter in Missouri houses?
Sources for the facts on this page
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