Vermiculite attic insulation — primarily sold as Zonolite — was installed in millions of homes through the 1990s. An estimated 70% came from an asbestos-contaminated mine in Libby, Montana. If your Detroit home has vermiculite in the attic, it should be treated as containing asbestos until proven otherwise. US Asbestos Contracting provides licensed vermiculite removal throughout Detroit and Wayne County.
Vermiculite Risk in Detroit
With approximately 85% of Detroit's homes built before 1980, vermiculite attic insulation is a real concern — particularly in mid-century homes in neighborhoods like Corktown, Midtown, Eastern Market, New Center, Woodbridge. The EPA advises avoiding any disturbance of vermiculite until professionally tested and removed.
Vermiculite Removal Cost in Detroit (2026)
- Typical Detroit attic (800–1,200 sq ft): $3,500–$8,000
- Large attic (1,200+ sq ft): $7,000–$15,000+
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