FACS: Industrial Hygienists & Environmental Consultants

What They Do

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• Environmental due diligence
• Hazardous waste & superfund
• Water quality monitoring
• Assessment And Testing
• Building Management
• Custom Programs
• Emergency Response Plans
• Environmental Assessments
• Environmental Monitoring
• Environmental Testing
• Environmental Testing Services
• Exposure Assessment
• Exposure Assessment & Control
• Exposure Monitoring
• Fire Smoke Assessments
• Hazardous Building Materials
• Health & Safety Management
• Health And Safety Plans
• Health Consultants
• Incident Reporting
• Industrial Hygiene Services
• Industrial Hygienist Consulting
• Legionella & Water Quality Services
• Litigation Support
• Maintenance Programs
• Management And Consulting
• Occupational Exposure Monitoring
• Operations And Maintenance

In Their Own Words

Forensic Analytical Consulting Services, Inc. (FACS) in Hayward, CA, helps organizations throughout the San Francisco Bay Area and Northern California protect people, property, and public health. With more than 150 professionals nationwide, FACS brings decades of environmental health and industrial hygiene expertise to every project. Our Bay Area team provides services in indoor air quality, asbestos and lead surveys, mold and moisture investigations, Legionella water management, and emergency response support. We deliver clear answers, defensible documentation, and responsive service for healthcare, construction, education, and commercial clients. Call FACS today for expert guidance.

Written by the business on its public profile. We have not verified these claims.

Before You Call FACS: Industrial Hygienists & Environmental Consultants

1. Where do you think the moisture is coming from, and who fixes it?
2. Will you set up containment and negative air, and how will you protect the rest of the home?
3. Do you also do remediation? If so, who checks your work?
4. How many air samples will you take, and will you take an outdoor control sample?
5. Is your company licensed for asbestos abatement here?

Ask for the company’s California contractor license number and look it up with the Contractors State License Board. Also ask for proof of insurance and industry certification for the technicians doing the drying or mold work.

How Their Reviews Break Down

Counts from public listings as of September 23, 2026. A handful of reviews says less than a few hundred.

Read This While You Wait

• DIY with careSafe DIY Mold Cleanup for Areas Under 10 Square FeetA step by step method to clean up mold under 10 square feet safely, with the gear to buy, what to throw away, why bleach is not the default, and when to stop.
• Call a proMold Testing, When It Is Worth It and How to Read a Lab ReportWhen a mold test is worth paying for, which kind to ask for, why store kits mislead, and how to read spore counts, outdoor controls and a lab report yourself.
• Call a proAsbestos in Older Homes, Where It Hides and What Not to TouchWhere asbestos hides in older homes, why intact material is often safest left alone, how lab testing works, and what never to sand, scrape, drill or break.
• DIY with careAttic Mold on Roof Sheathing, Causes and FixesWhy mold grows on attic roof sheathing, how to find the cause, the fixes that stop it for good, and how to tell a cosmetic stain from a roof that needs work.