UK home moisture help
Damp, condensation and mould guides
Plain-English guides for diagnosing and reducing household damp, mould and condensation problems.
Damp and condensation guides split into three practical groups. Start with the diagnosis guides ? if you are not sure what is causing the problem. Move to action guides ? once you know the type. Use the tools ? alongside any guide to check your actual humidity levels.
Diagnosis
Understand the cause first.
Why is my bedroom damp?
Causes of damp in bedrooms overnight moisture, cold walls, furniture against walls and limited ventilation.
GuideHow to stop condensation on windows
Practical ways to reduce morning water on glass ventilation, dehumidifiers, and what not to ignore.
GuideDoes a dehumidifier help with mould?
What it can and cannot fix, and what to pair with it for best results.
Action
Fix it and keep it fixed.
Ideal humidity level for UK homes
What humidity range to aim for, how to measure it, and what controls it year-round.
GuideHow to dry clothes indoors safely
Dry clothes indoors without causing condensation, damp smells or mould around windows and walls.
GuideWhere should you place a dehumidifier?
Placement rules for different rooms bedrooms, garages, bathrooms and drying clothes areas.
GuideMould remover vs dehumidifier
When to use mould remover spray, when a dehumidifier helps, and why moisture control matters more.
GuideDehumidifier vs air purifier
What each one does, when you need one over the other, and whether running both together helps.
Cost comparison
Make informed decisions before you buy.
High-priority problems
Tackle persistent humidity and mould issues.
Condensation on walls: causes and cures UK
Why condensation forms on walls in UK homes and how to fix it from ventilation habits to dehumidifiers and longer-term solutions.
GuideMould on ceiling: how to treat and prevent UK
Why mould grows on ceilings, how to treat it safely, and how to stop it coming back.
GuideHow to reduce humidity in your house UK
Practical steps to reduce indoor humidity in UK homes, from ventilation habits to dehumidifiers and when to get professional help.
GuideDehumidifier running costs UK
How much a dehumidifier really costs to run at 2026 electricity rates, and how to keep the cost down.
GuideLandlord responsibility for damp and mould
UK landlord duties under Awaab's Law 2025-26, tenant rights, and what to do if your landlord won't fix damp.
GuideMould and health: symptoms, risks and when to worry
How household mould affects your health, who is most at risk, and when to see a GP about mould exposure.
Specific rooms
Targeted guides for particular rooms and situations.
Best dehumidifier for a caravan UK
Static and touring caravan guide to choosing a dehumidifier that handles cold, condensation and seasonal use.
Room guideBest dehumidifier for basement and cellar UK
How to choose a dehumidifier for a UK basement or cellar sizing, desiccant vs compressor and continuous drainage.
Room guideDehumidifier for kitchen UK
Do you need a dehumidifier in a UK kitchen? How to control humidity from cooking and what to look for.
GuideDehumidifier for rented property UK
What UK tenants need to know about using a dehumidifier in a rented home your rights and what to ask your landlord.
Winter
Preparing for the damp season.
Drying clothes indoors in winter UK
How to dry clothes indoors in winter without causing condensation, damp or mould in UK homes.
Seasonal guideCondensation on windows in winter UK
Why condensation forms on windows in winter UK and how to fix it from ventilation to double glazing.
Seasonal guideBlack mould in winter UK
Why black mould gets worse in winter UK and how to treat it and stop it coming back.