The issue of mould in properties has begun to be taken more seriously, and ways to enforce repairs have increased recently, but damp and mould can have various causes, varying severity, and can sometimes be the tenants responsibility. 

Damp can be caused either by condensation (which is easier to deal with) or structural defects with the property.

Damp caused by condensation:

This damp tends to be worse in winter and can cause paint to peel or create mould patches. Bathrooms and kitchens tend to be most affected by it.

As a tenant you are responsible to take steps to prevent it. Here are a few things to do:

• Always use the extractor fan (if you’ve got one, usually in the bathroom) or open a window when cooking/having a shower (remember to shut it afterwards)
• Cover pans when they’re boiling
• Dry clothes outside or in a room with an open window
• Keep heating on a low constant heat to get rid of cold surfaces
• Increase gaps between furniture and the walls (e.g. beds/wardrobes) to let air flow freely

This can cause mould, which is very unpleasant, but this can normally be fixed by increasing ventilation and cleaning the affected areas with some bleach or biocide.

Damp caused by structural defects:

This damp tends to look more like a stain and can be around skirting boards of the ceiling rather than windows. It can be caused by a leaking roof or guttering or other ways water is getting into the fabric of the house, such as soil or waste piled up outside above the damp course.

This is the landlord’s responsibility. Contact them and ask them to inspect, always put your request in writing and include a time limit, of about five working days, or if water is coming into the property then 24-48 hours. 

Dealing with this kind of damp needs the main cause sorting. This can take time, and can be complex work. Temporary fixes such as a dehumidifier, or membrane sealant paint can help for a while but they are not a solution to the problem. 

If there is serious damp in a property, and serious visible mould the council may be able to take action https://www.leeds.gov.uk/housing/council-housing-information-for-tenants/damp-mould-and-condensation