Breathing Indoors: Compensation Routes for Renters Facing Damp and Ventilation Defects in 2026

Indoor air is part of the clean-air debate

Most public discussion of air pollution focuses on roads, clean air zones and chimney smoke. For tenants, however, some of the most immediate exposure happens behind the front door. Damp walls, black mould around windows, condensation on cold surfaces and ventilation that cannot cope with everyday cooking and washing can all affect indoor air quality. In 2026, Clean Air Claims continues to see interest from renters asking whether these conditions can support a compensation claim. The short answer is that a claim may be possible, but it depends less on the presence of mould alone and more on notice, responsibility, causation and evidence.

The repair duty comes before the claim

A landlord's obligations usually begin with the tenancy agreement and the statutory repairing covenant in section 11 of the Landlord and Tenant Act 1985. That covenant covers structure, exterior, installations for water, gas, electricity, sanitation, heating and ventilation in many tenancies. The Homes (Fitness for Human Habitation) Act 2018 also implies a condition that the property is fit for human habitation. Damp and mould can engage both sets of duties. The tenant's practical task is to show that a defect was reported, that the landlord had a reasonable opportunity to inspect and repair, and that the problem persisted or recurred.

Where Awaab's Law fits in 2026

Awaab's Law is named after Awaab Ishak, whose death was linked to prolonged exposure to mould. The first duties for social landlords began to apply from 2025, with requirements to investigate damp and mould hazards within set timescales and to keep tenants informed. In 2026 the focus has shifted from the principle to compliance: whether registered providers are meeting the timescales, recording decisions properly and treating repeated condensation as a symptom to investigate rather than a tenant failing. For private renters, the position is still developing. The Renters' Rights framework is intended to extend comparable expectations to the private rented sector, but commencement and detail matter. A tenant should not assume that a social-housing timescale applies automatically to a private landlord; they should check the current position for their tenancy type and seek advice where the issue is serious.

When compensation becomes realistic

Compensation is not a penalty for having mould in a property. A civil disrepair claim normally requires a breach of obligation, loss and a link between them. Recoverable losses may include damage to belongings, additional heating costs, alternative accommodation in serious cases, and in some cases general damages for inconvenience or discomfort. Personal injury claims are possible but usually need medical evidence and a clear causal link. A council environmental health inspection, a housing ombudsman decision for social tenants, or a written admission from the landlord can strengthen a claim. A tenant should also consider the regulatory route: councils can serve improvement notices or take action where a hazard is serious. That route may produce repairs without compensation, but it creates a useful record.

Evidence that makes a difference

A strong indoor air claim is built over weeks, not in a single photograph. Useful steps include:

• Keep a dated log of damp, mould, condensation, smells and ventilation problems, noting weather and household activity.
• Photograph the same areas at intervals, with a scale or date card where possible.
• Record temperature and humidity with a cheap hygrometer, but do not present readings as expert proof.
• Note when extractor fans, trickle vents or windows fail to work.
• Save all emails, texts and letters, including reports to the landlord and any council reference numbers.
• Ask the landlord to inspect in writing and keep a record of access visits.
• Keep receipts for damaged items, extra heating or dehumidifier use.
• Obtain medical records if health effects are part of the claim.
• Ask the council's environmental health team to inspect where the landlord does not act.
• Avoid withholding rent without advice, because that can create a separate possession risk.

Requesting repairs in the right way

The first letter should be factual. It should identify the rooms affected, describe the defect, explain any health impact and request an inspection within a reasonable period. It should ask the landlord to confirm what repairs are proposed and when they will start. A follow-up letter should record any missed appointment or temporary fix. Tenants should allow access for inspections and repairs, but they are entitled to reasonable notice. Keeping the tone neutral is more effective than a long complaint, because the correspondence may later be read by a court, council or ombudsman.

The limits of a claim

Not every cold home is a disrepair claim. Some condensation is caused by lifestyle and poor ventilation habits, but a landlord still has to ensure that the property has functioning ventilation and that any structural defect is addressed. Claims can be slow, and legal costs may be disproportionate for small losses. Limitation periods also apply: contract claims generally have six years, while personal injury claims usually have three years from knowledge of the injury. Anyone considering court action should take advice before issuing a claim.

A realistic conclusion

For renters, damp, mould and poor ventilation are not just housing issues; they are indoor air-quality issues. A compensation claim can be realistic where a landlord was put on notice, failed to act and the tenant suffered measurable loss. In 2026, the stronger cases will be those supported by a clear timeline, independent evidence and a repair history that shows persistence rather than a one-off patch. Clean Air Claims recommends that tenants focus first on getting the hazard fixed, while preserving the records that would support a claim if repairs fail.