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A free, quick way to organise what you already know about your home and health into a clearer risk picture.

Practical guidance to help you take and document samples in a way that keeps them useful for later review.

A framework to organise building-related illness evidence so it stays clear, chronological and useful.

A calculator that shows how indoor temperature and humidity relate to dew point and condensation risk.

A tool to help translate technical laboratory results into plain-English findings you can act on.

Translates clinical stool and gut microbiome tests into plain-English findings — available as single specific reports, groups, or white-label.

A professional-grade inspection and survey tool for organising a thorough building investigation.

A structured case-management system for organising environmental and building-related claims consistently.

A structured system for housing organisations to organise disrepair, damp and health-related housing cases.

A structured system for landlords and managing agents to organise property, health and disrepair concerns.

Autonomous, satellite-connected environmental early warning for buildings — no Wi-Fi, no power, peel-and-stick install, 3-year battery life. Less than a cup of coffee per property.

A free, quick way to organise what you already know about your home and health into a clearer risk picture.

Testing is only useful when it is designed to answer the right question. TRACE™ helps you consider what to sample, where to sample and which method may be appropriate for the purpose of the investigation — before spending money on testing that may provide limited answers.

A practical set of five tenant letters designed to help you communicate concerns clearly, report relevant hazards, create a written record of responses and prepare for the next appropriate step. Designed to make a difficult situation easier to document and communicate.

Plain-English guidance to help tenants better understand damp and mold concerns, the importance of evidence, effective communication and potential routes for obtaining appropriate support. No unnecessary technical jargon. Just practical information to help you become better informed.

An inspection or remediation visit shouldn't leave you with more questions than answers. This guide explains useful information to record and questions to consider during inspection, remedial works, completion and follow-up.

A supportive resource for organising observations, patterns and potentially relevant environmental questions so they can be discussed more clearly with appropriate professionals.

Organise observations around memory, thinking and cognitive changes alongside relevant timing and environmental context. Designed to help create clearer information and identify questions that may warrant appropriate professional review.

Explore the evidence, guidance, limitations and rights status behind Parallax 4, including material from sources such as EPA, IICRC, ISEAI and AIHA together with supplied case-study material. Designed for those who want to understand not simply what an app says, but the information and source material supporting it.

Some situations don't have a simple one-size-fits-all answer. Ask JeffCharlton AI a specific question and explore specialist knowledge covering disaster recovery, biocontamination, mold, indoor environmental risk and building-related environmental concerns — organised with AI and available whenever questions arise.