All & One provides professional mold services as a verified mold professional offering both assessment and remediation services in Covina, CA. Highly rated at 5.0/5.0 based on 67 customer reviews.
Based on 67 reviews
Aggregated from public review platforms
Review Strength
Scored out of 100: up to 55 points for review volume, 35 for rating quality, and ±10 for standing against the local average.
What full-service mold professionals do
Professional removal and treatment of mold growth in residential and commercial properties. Includes containment, HEPA filtration, antimicrobial treatment, and post-remediation verification.
Comprehensive property evaluation including visual inspection, moisture mapping, air quality sampling, and laboratory analysis to identify mold type and extent.
Emergency water extraction, structural drying, dehumidification, and restoration following floods, leaks, or plumbing failures.
Sampling and analysis of indoor air for mold spores, VOCs, and other contaminants to establish baseline conditions or verify remediation success.
California has no state mold remediation license, so any company can legally offer mold work there. That's why we verify California pros directly: business identity, location, and reputation, plus insurance and industry certifications when provided.
Regulatory facts last reviewed June 2026.
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