Alta Inspection Services, Inc.
Mold testing and assessment · Downers Grove, IL
- What they do
- Mold testing and assessment
- Insurance
- Not on file
- Google rating
- 3.8 15 reviews
Mold Assessment Pros in Downers Grove, IL (Verified 2026)
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Illinois Mold Information
- Climate zone
- Midwestern Continental
- Moderate, fluctuating (45-65% average)
- Humidity level
- Moderate, fluctuating (45-65% average)
- Most common indoor molds (CDC)
- Cladosporium, Penicillium, Aspergillus
Weather considerations
Fluctuating humidity and severe weather create seasonal mold risks. Basements, crawl spaces, and HVAC systems are common problem areas. Spring flooding and summer humidity spikes require vigilance.
Helpful Guides
- Mold Exposure SymptomsHealth effects, who is most at risk, and when to see a doctor
- Mold Inspection Cost GuideProfessional assessment pricing and what's included
- Mold Certifications ExplainedWhat IICRC, ACAC and NORMI credentials mean, and how to check one
- Assessor vs RemediatorWhat each one does, and why we recommend separate companies
- Mold Identification GuideWhat common household molds can look like, and what looks like mold but isn't
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