Damp and mould in private rented homes
This page is for private tenants.
Read this page if you live in a council or housing association home.
Dealing with damp and mould
Tell your landlord about damp and mould
Use our letter template.
Keep a record of all conversations, emails and messages.
Government guidance says landlords should take damp and mould seriously.
Let your landlord inspect your home
Your landlord must try to find out what's causing the problem.
You should give your landlord access to your home.
They can agree a date and time with you to visit.
If your landlord cannot find the cause of the problem, they should ask a damp surveyor.
You do not have to pay for this.
What are the timelines?
How fast your landlord must act depends on:
how serious the problem is
if anyone who lives with you is vulnerable
Your landlord should get back to you urgently if your health is at risk.
Damp and mould your landlord must fix
Your landlord must fix problems that cause damp, such as:
structural problems
faulty installations
Your landlord must also fix damp and mould if your home is unfit to live in.
Your landlord must fix:
leaking internal pipes
poor ventilation
broken boilers and heating systems
cracked walls or rotten window frames
leaking roofs, missing roof tiles or faulty guttering
Your landlord is also responsible for extractor fans they've installed.
Your landlord should check if damp and mould return at least 6 weeks after the repairs.
They should also fix any damage caused by the damp.
For example, they should redecorate or replace damaged plaster or carpets.
Signs of structural problems
Damp patches on external walls can be a sign of penetrating damp.
Penetrating damp means water gets into the property from outside, often through gaps and cracks.
Your landlord might have to replace old mortar to fix the problem.
Improvements to deal with damp and mould
Improvements are different from repairs.
Landlords do not usually have to make improvements.
But your landlord might have to if repairs do not fix the problem.
For example, your landlord might have to insulate the walls or roof if damp makes your home unfit to live in.
Video: Look for the causes of damp
Video transcript
If you have a damp problem in your rented home, look for the cause.
Penetrating damp can be caused by:
a leaky roof
faulty guttering
cracks in external walls
internal leaks
plumbing problems
Rising damp is when groundwater soaks up into the bricks or concrete of the building. It can affect basements and ground floor rooms.
Tell your landlord immediately if you spot penetrating or rising damp.
It will usually be their responsibility to fix the problem and make good any damage.
Our adviser explains how to spot damp problems that your landlord should fix. [Video length: 00:33]
Condensation problems
Condensation happens when moisture in the air meets a cold surface, like a window or an external wall.
Your landlord should not tell you:
to paint over mould that keeps coming back
that the problems are just condensation without checking
to stop doing everyday things such as cooking or showering
Steps you can take
It can help if you:
open windows regularly
cover pans when you cook
dry clothes outdoors or in a dryer
close internal doors when you cook or shower
use extractor fans in the kitchen and bathroom
leave a gap between furniture and external walls
wipe condensation from window sills each morning
Condensation is often worse in cold properties.
You could get help with bills if you are struggling with energy costs.
If condensation comes back
Tell your landlord if you've taken these steps but still have damp and mould.
Your landlord should:
check why the property cannot cope with everyday living
fix the underlying problem, such as not enough insulation or ventilation
Government guidance has a ventilation checklist for landlords.
Show it to your landlord or agent.
Landlords should not be unreasonable
They should not ban you from drying clothes indoors if you have no outside space.
They could help with a solution. For example, a dryer or a dehumidifier.
Tell your landlord if you're worried about your energy bills.
Ask environmental health for help
You can ask your council for an environmental health inspection if the problem is serious.
The council can order your landlord to fix damp and mould.
Environmental health contact details should be on your council's website.
Complain about your letting agent
You can complain about your letting agent if they do something wrong, such as:
ignoring complaints
telling you to fix damp and mould yourself
refusing to tell the landlord about the problem
Ask the agent for a copy of their complaints policy if you cannot find it online.
Claiming compensation
You can do this if damp and mould:
damage your belongings
cause you health problems
make all or parts of your home unfit to live in
cost you money, for example because you have to run a dehumidifier all the time
You need evidence of problems.
You usually have at least 3 years to start a claim, so you could wait until after you move out.
Find out more about legal action for disrepair and bad conditions.
Moving out
You may feel that the problems are so serious that you need to leave.
Do not move out unless you have somewhere to go.
Your landlord could keep your deposit or start a money claim for rent if you do not end your tenancy properly.
Find out how to end your tenancy.
If your landlord asks you to move out
Your landlord might tell you to move out while the problem is fixed. Find out more about moving out temporarily.
If they want you to move out permanently, they must take the right steps.
Ask the council for help before you leave
Very serious damp and mould could mean that you should get:
Ask the council for help before moving out. They might say you've made yourself homeless if you move out first.
Last updated: 1 May 2026
