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Damp, mould, and condensation
This page gives you information on damp, mould and condensation. Find out what causes it to happen, ways to prevent it and how you can report any issues in your home.
If you have damp, mould or too much condensation in your home
If you have a problem with damp, mould or too much condensation in your home, you should let us know and we will look into it for you.
You can also:
- use your My Thirteen account
- email email@example.com
- call 0300 111 1000
- visit one of our stores.
What happens when you report damp, mould or an increase in condensation to us?
When you contact us to report damp, mould or an increase in condensation in your home, we will ask you some questions about your concern.
The information you tell us will help us to understand how severe the issue is and what needs to be done to treat it.
Reports of damp, mould and condensation are recorded in four categories.
Category four: condensation
Condensation, with no mould or damp. You may have too much condensation in one or more rooms in your home.
Category three: minor
You may have a small amount of damp and/ or mould in a small area, in a number of rooms. For example, this could be around several windows or corners of the room.
Category two: moderate
You may have a moderate amount of condensation, damp and/or mould in one or more rooms in your home that are used for either living, sleeping or cooking.
Category one: severe
You have severe and widespread damp and mould in a number of rooms in your home that are used for either living, sleeping or cooking.
Making your appointment
We will book an appointment for a surveyor to come to your home, at a time that is suitable for you.
On the day of your appointment, they will carry out some checks to see what work needs to be done.
We will book a further appointment for any work to treat the damp, mould and condensation.
Depending on the level of damp and mould in your home, you may be offered an appointment for a decorator to attend to remove the risk and to stop the problem from becoming worse.
It is really important that you are at home for all of your appointments.
We will contact you following your appointment to make sure there is no further issues.
Damp in your home
Damp is the build-up of too much moisture inside of a property.
Damp in your home is likely to happen when there is a lot of condensation built up, or when water comes into your home from the outside.
Cause of damp
Damp is normally caused when moisture in the air hits a cold surface, like a window or a wall. The moist air turns back into water, creating dampness.
Damp can be caused by a few things, including:
- moisture from condensation
- water coming into your home
- issues with your water or plumbing system
- not having enough heat in your home
- a building fault, such as damp proofing that has stopped working.
Condensation is the most common cause of damp.
It happens when moist air inside of a home touches a colder surface. When this happens, it causes the surface to be wet.
Condensation is more likely to happen in areas of your home that are colder, or where fresh air cannot get to. This includes:
- cold corners of rooms
- rooms that have no way of letting fresh air inside e.g. no windows that can open
- built-in or fitted cupboards or wardrobes
- behind furniture that is directly against a wall.
All homes have an element of condensation, but this should be quick and easy to soak up and clean with a cloth. This is one of the best ways to avoid the risk of mould growth. If it is taking multiple attempts to remove the condensation or it is pooling on the window sill, this could be a sign there is an issue, so please get in touch.
There are ways to stop condensation from building up in your home.
Letting fresh air into your home
Letting air inside your home from the outside will let condensation out.
Leaving a window open or turning on an extractor fan is the best way to do this – when you are in the bath or shower, or when you are cooking. Do not turn off any extractor fans in the bathroom or kitchen. Extractor fans are cheap to run. They also use less energy than a standard light bulb and can remove moist air quickly.
You should not block any vents you might have in walls or on windows.
If you turn off, restrict or disable the ventilation in your home, this will impact the quality of the air and increase the risk of mould developing. Mould can be present before it is visible and can impact your health.
If you suspect the ventilation in your bathroom or kitchen is not working, please contact us. Some homes have ceiling ventilation at the top of the stairs, again if you suspect this isn’t working please contact us.
Drying clothes in your home
Drying your clothes indoors will create moist air. If you are drying them on a radiator or in the tumble dryer, keep a window open close by.
If you do need to dry your clothes inside, try and dry them in one room. Open the window to keep the room ventilated.
Keep your home warm
Keeping your home warm will help to stop condensation from happening.
We realise the cost of living is affecting everyone. You may not want to heat your home as much as you previously did because of the cost of energy.
There are ways you can keep heat in your home for longer, including:
- keeping doors closed
- tucking any curtains behind radiators
- during the day, opening your blinds and curtains to let heat from the sun inside
- at night, closing your blinds to prevent cold air from getting inside.
If you have the option, you should not put furniture up against a radiator. This can trap air and lead to condensation.
Mould in your home
Damp can cause mould. This is a stale smell, with wet patches on your walls or ceilings.
Any sign of condensation dampness or mould growth is a sign that the air in your home is too wet.
You can regularly wipe moisture away from your windows and windowsills to help reduce mould.
Mould will need to be removed safely from your home by a qualified tradesperson.
You can clean an area with mould growth with a fungicidal wash that has a Health and Safety Executive approval number. This is easily available from most supermarkets and DIY stores.
Never use bleach to clean surfaces that have mould on them. This can be dangerous and cause mould to grow even more.