About Jeff Charlton
CIEC | CR-WLS - CMH | AMRT-CR-CMH | HON FELLOW BDMA
A leading international authority in mold, biocontamination, and indoor environmental risk, with over three decades of real-world experience supporting professionals across construction, insurance, healthcare, and environmental risk.
35+
Years Field Experience
35+ Years Experience
Real-world expertise across complex environmental challenges and building investigations.
Cross-Industry Expertise
Trusted advisor across construction, insurance, environmental health, and property management.
Complex Case Specialist
Supporting high-risk contamination, air quality, and forensic building failure investigations.
Practical + Scientific
Combining technical laboratory data with hands-on building science and diagnostic investigation.
A Lifetime of Expertise in Complex Environments
Jeff Charlton — Environmental Risk & Forensic Building Expert
Jeff Charlton is one of the United Kingdom and international community's most experienced specialists in mold, biocontamination, and indoor environmental risk, with over 40 years of hands-on investigation across complex, high-stakes environments.
His work focuses on identifying, assessing, and resolving contamination and indoor air quality issues where occupant health, structural integrity, safety, and commercial outcomes are closely linked.
Over the course of his career, Jeff has supported professionals across construction, insurance, legal, public health, and property sectors — providing clarity and direction in situations where accurate diagnosis and informed decision-making are critical.
His background spans environmental health, large-scale disaster restoration and decontamination projects, and the formulation of recognised industry standards — combining rigorous scientific principles with practical building forensics.
Experience Across Multiple Sectors
Delivering clear environmental evidence and actionable insight across diverse industries.
Construction & Building Professionals
Supporting the investigation and resolution of complex mold contamination and structural moisture issues across residential and commercial developments.
Insurance & Loss Adjusters
Providing independent expert insight into high-value claims involving mold, major water damage, and environmental contamination risk.
Environmental Health Professionals
Assessing indoor air quality, biological contamination, and health-related building conditions in sensitive and high-risk environments.
Property & Housing Organisations
Addressing persistent mold issues, environmental risk, and occupant health concerns across large housing portfolios and commercial estates.
Industry Contribution & Best Practice
Jeff Charlton has played an active role in advancing understanding and best practice within the mold and indoor environmental science sector.
Through professional platforms, industry symposia, court testimony, and educational initiatives, he has contributed to raising awareness and improving standards around biological contamination, moisture diagnostics, and indoor air quality.
His work continues to assist homeowners, commercial managers, and technical professionals in navigating complex, misunderstood environmental challenges without resorting to sensationalism.
Authority & Industry Impact
International Experience
Delivered large-scale decontamination, environmental recovery, and forensic investigation projects across the United Kingdom, Europe, the Middle East, and North America.
Standards & Industry Contribution
Contributed directly to the development of recognised industry standards, including early work on IICRC S520 and PAS 64 (later integrated into BS 12999).
Expert Witness & Advisory
Court-proven expert witness and independent advisor on complex contamination cases, environmental liability, and building-related illness.
Recognition & Professional Credentials
Jeff Charlton’s expertise is supported by recognised professional certifications and long-standing leadership in industry organisations.
- Member of Chartered Institute of Environmental Health
- Hon Fellow BDMA (Founding Chairman)
- AMRT-CR-CMH
- Certified Restorer (CR)
- Water Loss Specialist (WLS)
- Certified Mechanical Hygienist (CMH)
- CIEC (Certified Indoor Environmental Consultant)
Explore Jeff Charlton's Knowledge via AI
Have a specific question about mold testing, remediation, moisture diagnostics, or building health? Ask JeffCharlton AI directly.