Detroit's Cobo Center through the years Cobo Conference and Exhibition Center has dominated the heart of downtown Detroit since it opened in 1960. It was built by the city of Detroit and named in honor of former Detroit Mayor Albert Cobo (1950-1957). It is shown here May 20, 1962. The Detroit News archives
Remediation costs vary depending on how much and where mold exists. Figure on: 1  $500 to $4,000 to remove mold from crawlspaces only.  $2,000 to $6,000 to remove mold from ducts, crawl spaces, walls, and attics.
Amount of mold. The location of the mold and how accessible it is will affect the time for removal, in addition to how much there is. If your mold is inside walls, up in enclosed attic spaces, or under your home in hard to reach crawl spaces, it will be more difficult to remove and will take a pro longer.