Overview
A clear sequence to separate condensation, penetrating damp and trapped moisture causes before spending on works.
This guide is designed to help you make better first decisions before any strip-back or remedial work starts.
Guide · damp mould
Damp Patches in Period Homes: Diagnosis Checklist
A homeowner-friendly checklist for interpreting damp signs in older solid-wall properties.
London Specialists
Period Property Focus
Small Jobs Welcome
Breathable Methods
Table of contents
- What is happening and why
- Diagnosis and practical checks
- Compatible breathable options
- Common mistakes to avoid
- When to call a specialist
Common mistakes
- Treating every damp mark as rising damp without contextual checks.
- Relying on anti-mould paint as a standalone solution.
- Skipping ventilation and occupancy pattern review.
When to call a specialist
Call a specialist when damp marks repeatedly return, mould appears across multiple seasons, or plaster starts to degrade.
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Next Step
Send photos for an estimate
Use this guide as context, then send photos for a practical, project-specific recommendation.