Condensation and mould
When you should contact us
- you think the damp and mould has been caused by a leak that needs repair
- you have followed the steps to improve ventilation and there is still damp and mould
Things you can try
When you contact us, we will ask if you have tried some of the steps below. Try these steps before getting in touch:
- dry clothes outside or use a vented tumble dryer
- do not dry your washing on radiators
- keep pans covered when cooking
- open a window or use an extractor fan when cooking or showering
- shut your internal doors when cooking or showering
- leave a gap between your furniture and external walls (this helps the air circulate)
Other tips to reduce condensation
- open your windows slightly during the day
- keep window vents open and never block air vents in your home
- if drying clothes indoors, choose a warm room and open a window
- keep a low temperature of above 15 degrees in all rooms in your house (this will also save money on your heating bills)
- do not use flue-less paraffin and bottled gas heaters
- do not overfill cupboards (this helps the air circulate)
Check for rising and penetrating damp
- are there any potential roof leaks?
- are your gutters blocked or cracked?
- is there a leak from an internal or external pipe?
- is the ground level outside your home above your damp course?
- are your drains blocked?
What’s causing the mould?
Condensation is formed when warm and moist air comes into contact with cold surfaces like window panes or bathroom tiles.
It can be caused by cooking, drying your clothes indoors, and when bathing. If you don’t ventilate your home, the condensation can lead to mould.
Rising and penetrating damp
Rising damp is when moisture comes through the lower levels of your home. It can be caused by:
- damage to the damp proof course in your home
- soil blocking the damp proof course in your home
Penetrating damp is caused by water leaking into your home from the outside walls. It can be caused by leaking or blocked gutters.
Treating the mould
There are things you can try to treat the mould. However, without stopping the condensation, the mould is likely to return.
- wipe the affected area with water and a cloth
- use a mould remover and treatment (we recommend using a recognised brand)
- do not use washing up liquid as a source to clean
- wash or dry-clean any clothes that have damp or mould on them
- shampoo any carpets that have damp or mould on them
- you may need to re-decorate any affected areas (use a good anti-fungal paint which will help stop the mould from returning)
Contact us if you have tried the steps above and there is still damp and mould.
We will work with you to see if there is anything else you can try. If not, we will book an appointment for a surveyor or engineer to visit you to assess or carry out a repair.