It’s winter and a New Year has begun but with the same old problems. As temperatures fall across London and households turn their heating on, many tenants begin to notice condensation forming on windows and walls. While this is common during colder months, persistent condensation can quickly develop into damp and mould, creating unhealthy living conditions and damaging the fabric of a property.
Advice often centres on opening windows to let moisture escape. While ventilation can help, tenants should not be expected to rely on open windows in winter to compensate for poor ventilation or disrepair.
The Hidden Dangers of Damp and Mould in London Properties
We have compiled a Comprehensive Article relating to Housing Disrepair Compensation claims relating to the hidden dangers of council and social housing tenants being exposed to damp and mould. Poor housing and living conditions not only damage property and cause ill health but also psychologically affect all tenants and their family. For further reading on your housing disrepair rights read our article on: The Hidden Dangers of Dangers of Mould in London Properties.
Why condensation builds up in London properties
Condensation occurs when warm, moisture-laden air meets colder surfaces such as external walls, windows or ceilings. Everyday activities including cooking, showering, drying clothes indoors and even breathing add significant moisture to the air.
Research shows that a household can generate several litres of moisture each day. Where ventilation is inadequate, that moisture has nowhere to escape, leading to water forming on cold surfaces. This is particularly common in older London properties, converted flats and poorly maintained social housing.
Condensation is more likely where:
- Ventilation systems are missing, broken or ineffective
- Heating is inconsistent
- External walls or windows are poorly insulated
- Air circulation is limited
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Should tenants open windows in winter?
Short bursts of ventilation can reduce humidity. Opening windows for a few minutes a day may help moist air escape. However, this should not be necessary if a property is properly ventilated. Landlords are responsible for ensuring that homes have working extractor fans, suitable airflow and insulation that prevents cold bridging. Constantly opening windows in freezing conditions can also increase heating costs and leave tenants feeling uncomfortable in their own homes.
Where condensation returns quickly despite reasonable steps being taken, this often points to an underlying housing defect rather than tenant behaviour.
You must make a a complaint against your London Council or Housing Association. A list of some organisations are below.
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The health risks of damp and mould
Damp and mould are not just cosmetic problems. Long-term exposure can:
- Worsen asthma and respiratory conditions
- Trigger allergies and skin irritation
- Pose serious risks to children, older residents and vulnerable tenants
Mould can also damage walls, ceilings, flooring and personal belongings, reducing the overall safety and habitability of a property.
What tenants in London should do
Tenants experiencing ongoing damp or mould should:
- Report the issue to their landlord or housing provider in writing
- Keep records and photographs of the problem
- Allow reasonable time for inspection and repairs
If no action is taken, tenants can escalate the matter to their local London council or housing association. Councils have powers to inspect properties and require landlords to carry out remedial works where conditions pose a health risk.
When legal advice may be needed
Where a landlord or housing provider fails to address serious damp, mould or ventilation defects, tenants may need specialist legal advice. housing disrepair claims can help tenants enforce repairs and pursue compensation where living conditions have caused illness, distress or damage to belongings.
Legal action is often a last resort, but it can be an important step in ensuring landlords meet their legal responsibilities and tenants are able to live in safe, habitable homes. Opening windows may reduce condensation, but it should never be the primary solution to damp and mould. Proper ventilation, insulation and maintenance are essential. Where these are lacking, tenants in London are entitled to expect action and, if necessary, enforcement.

How to Complain Against your London Council or Housing Association
Before any claim for compensation for housing repair conditions such as damp and mould you must first complain to them. You should not go direct to your London Housing Solicitors to make a claim. There are also internal procedures that you may have to follow when making a claim but we suggest once you have made a complaint contact us and we will guide you through the process.
Reporting damp and mould to London councils and housing providers
Tenants should usually raise damp, mould and ventilation issues directly with their local council or housing provider before considering legal action. Councils have environmental health and housing enforcement powers to intervene where conditions pose a risk to health.
London councils
- London Borough of Hackney
Use the general contact page to raise housing conditions, damp and mould concerns. Hackney route housing enforcement complaints internally from this page. - London Borough of Lambeth
Central contact page for housing complaints and escalation relating to disrepair. - London Borough of Southwark
Housing and environmental health complaints are logged via this portal. - London Borough of Newham
Contact page used for reporting poor housing conditions including damp and mould. - London Borough of Tower Hamlets
Main council contact hub for housing enforcement and complaints.
Housing associations and social landlords
- Peabody
Repairs, damp and mould complaints and escalation routes. - Clarion Housing
Tenant contact page for repairs and housing condition issues. - Notting Hill Genesis
Central tenant contact hub for disrepair and complaints. - L&Q Housing
Repairs and complaints for tenants and leaseholders. - Hyde Housing
Housing condition reporting and escalation.
If nothing is done to repaired damp and mould conditions
Where complaints are ignored, delayed or inadequately addressed, tenants may need further support. In those circumstances, housing disrepair claims can assist tenants in enforcing repairs and seeking compensation where damp and mould have affected health, wellbeing or personal belongings.Contact Us Now To Claim

Additional Resources
Understanding Damp and Mould – Gov.uk Guidance
• Housing Disrepair Specialists: Housing disrepair claims and services offered.
•Housing Disrepair and Human Rights: Housing disrepair issues and human rights considerations.
•Legal Action Against Landlord for Housing Disrepair: Taking legal action for housing disrepair.
•Council House Disrepair Claims: Information specific to disrepair claims in council housing.
•Housing Disrepairs Compensation: Details on compensation for housing disrepair.
•Claiming Compensation for Damp and Mould due to Housing Disrepair: Claims for damp and mould.
•Housing Disrepair and Asthma Claims: Housing disrepair and asthma.
By addressing damp and mould issues, you’re not just improving your home – you’re protecting your health and wellbeing. Reach out to Hutcheon Law Solicitors today and take the first step towards justice.


