What if damp in my rented home is making my family ill?

The practical answer is a sequence. Report the damp to your landlord in writing, because a landlord is usually only responsible for repairing the problem once they become aware of it³. Ask for the current Gas Safety Record, which the landlord must provide⁴. If the damp persists or the home is unsafe, the next step is the council's Environmental Health office, which can assess the property against the fitness standard⁵.

What follows sets out the landlord's legal duty, the evidence to gather, the low-cost steps that do not depend on the landlord, the funding that exists for upgrades, and the law that is changing in England and Scotland.

Why damp in a rented home is a health problem, not just a nuisance

The health evidence is the strongest part of a tenant's case, and it is worth stating plainly when reporting the problem. Damp homes are linked to a 30 to 50% increase in respiratory problems¹. The mould and damp that accompany fuel poverty are associated with respiratory issues, skin irritation and poor mental health². These are population-level findings, not a diagnosis of any individual household, but they explain why a housing officer, a council environmental health team or a landlord's complaints process treats damp as urgent rather than cosmetic.

The causes matter because they determine who fixes what. Condensation damp is listed as arising from not having proper ventilation, such as a basement room or a room where the windows do not open; from not having good enough extraction fans in kitchens and bathrooms; from broken heating systems such as a boiler not working properly; from not having insulation on external walls or ceilings; and from no suitable way to dry clothes³. Only some of those are within a tenant's control. Ventilation habits and drying arrangements are; a failed extractor fan, a broken boiler and missing wall insulation are not.

Attitudes research adds a second signal. Preventing damp and mould appeared as particularly important for certain segments of the British population, linked with renter housing situations and reliance on landlords⁹. In other words, the households least able to fix the building fabric themselves are the ones most concerned about it. That is the structural point behind the health figures: damp in a rented home is often a symptom of a building the occupant cannot alter.

Your landlord's duty: the home must be fit for habitation

If you are renting your home, it has to be fit for habitation and it is your landlord's responsibility to ensure this⁶. That is the principle that sits behind everything else on this page. In Northern Ireland, the fitness standard is set out in official guidance: if a privately rented house fails in one or more of the criteria, it does not meet the fitness standard and is not suitable for people to live in⁵. Equivalent standards apply in England, Scotland and Wales, and the wording differs between them.

What the duty covers depends on the type of damp and the tenure. For penetrating damp, the landlord is in many cases responsible, because a term implied into the tenancy agreement says the landlord must keep in repair the exterior and structure of the home as well as installations like basins, sinks, baths, toilets and their pipework³. For condensation damp, the position is more nuanced. If you rent from the council or a housing association, the landlord is responsible for the damp if it means the home is not safe to live in, or if it is an ongoing serious problem affecting physical or mental health³. If you rent privately, the landlord might be responsible if the damp means the home is not safe to live in, for example if it has made you or your family ill³.

Landlords also carry specific insulation and draught duties. In a property rented to tenants, the landlord should make sure roof spaces are insulated; replace draughty, ill fitting windows and doors; draught proof external doors and windows, but not in rooms containing an open-flue gas appliance; insulate exposed water pipes; and fit the hot water tank with a good quality insulation jacket⁵. In England, private rented landlords must make sure plumbing and heating work properly¹⁰.

What to do first: report it, document it, ask for the Gas Safety Record

The order of steps matters, because a landlord's repair obligation generally begins when they know about the problem. Your landlord is usually only responsible for repairing the problem when they become aware of it, so report it straight away³. Put the report in writing, describe the rooms affected, the duration and any health effects in the household, and keep a copy.

Alongside the damp report, ask for the gas paperwork. Tenants should ensure their landlord provides a current Gas Safety Record¹¹, and asking for a copy of the annual gas safety record is the standard request¹². In rented accommodation the landlord is responsible for servicing boilers and appliances annually and must provide an up-to-date gas safety record, which is a legal requirement⁴. If you rent your home and need a safety check on all gas appliances and flues by a Gas Safe registered engineer, the arrangement runs through the landlord¹³. Where a record is missing, a tenant can report it to the Health and Safety Executive using form LGSR1¹⁴.

If the damp continues after the landlord has been told, the escalation route is the council. If you think your rented home does not meet the fitness standard, tell the council's Environmental Health office⁵. Environmental health officers can inspect and, where the home fails, require the landlord to act. Social tenants have the additional route of the landlord's formal complaints process and the Housing Ombudsman.

1. Report the damp to the landlord in writing and keep a dated copy.
2. Ask for the current Gas Safety Record and the annual service record.
3. Photograph the damp, note the rooms and dates, and record any health effects.
4. If nothing changes, contact the council's Environmental Health office.
5. For social tenants, use the landlord's complaints process and the Ombudsman.

Heating and moisture: small steps that do not push bills up

Some of the moisture in a rented home comes from how it is used, and those are the changes a tenant can make without waiting for the landlord. Portable gas or paraffin heaters put a lot of moisture into the air, as does drying wet clothes on radiators without opening a window, and using a tumble dryer with no outside vent unless it is a self-condensing type³. Removing those sources reduces the water vapour the building has to cope with.

Temperature is the other lever. Condensation-prevention guidance is to try to keep the home heated to at least 15°C, particularly during colder months⁷. That is a floor, not a target, and it is the point at which the guidance says condensation risk is managed. For tenants, there are likely to be some limitations on what changes can be made to the home, but there are lots of ways to save energy, reduce bills and stay warm¹⁵. Practical steps include talking to the landlord about grants or efficiency upgrades, and using simple measures such as draught-proofing or a portable dehumidifier¹⁶.

A dehumidifier draws moisture out of the air and can be particularly useful if you often dry clothes inside the house¹⁷. It treats the symptom, not a failed extractor fan or uninsulated wall, and it adds to electricity use. Where damp and condensation persist after these steps, the guidance is to contact the landlord¹⁸.

Grants and upgrades: what you can ask your landlord for

Landlord funding exists, and tenants can raise it, but the application sits with the landlord. The Warm Homes: Local Grant will fully fund upgrades for one property per landlord, and landlords can apply for multiple eligible homes but get full funding for only one, paying half of the upgrade costs for any eligible homes upgraded after the first⁸. Landlords must obtain tenants' permission to carry out the work, and the property must have an EPC rating of D or below²¹. Upgrades are free for eligible residents, though landlords must contribute towards costs²², and tenants should not pay for upgrade costs²⁰. Rent should not be increased as a result of upgrades funded by government through the scheme²³.

Beyond insulation and heating, other measures may be recommended, including energy-efficient lighting, underfloor insulation, high-temperature heat pumps, solar thermal, or direct electric heaters²². In Scotland, the Private Rented Sector Landlord Loan route for heat pump replacement requires a letter from an installer detailing why a replacement is the most suitable option for the home, including the existing system's faults²⁴.

For a household where someone is unwell, the Priority Services Register is worth asking about directly. Residents with a disability, a health condition, pensioners, and households with a child under 5 or a pregnant person can get help through it²⁵. It is free, it sits with the energy supplier, and it does not depend on the landlord's consent.

Awaab's Law and the Renters' Rights Act: what changes for tenants

The legal framework is moving, and the direction is toward faster action on hazardous damp. Awaab's Law introduces new requirements that compel social landlords to investigate and fix dangerous damp and mould within set time periods²⁶. Its effect is already visible in how tenants challenge landlords: Awaab's Law has helped effectively challenge social landlords²⁷. Government plans to extend Awaab's Law to the private rented sector through the Renters' Rights Bill, with implementation expected later in 2026²⁶.

The Renters' Rights Bill carries a wider set of obligations for English landlords, including an end to Section 21 evictions, registration with a Private Rented Sector Database, a Decent Home Standard, a timeframe on urgent repairs to hazardous homes, and measures bolstering tenants' rights against discrimination and unfair practices²⁸. The Renters' Rights Bill and changes to EPC and MEES regulations will change the status quo on regulatory incentives for heat pump uptake in the private rented sector²⁹.

For a household dealing with damp now, the practical reading is this: the direction of travel strengthens the tenant's position, but the timescales and the extension to private renting are still in progress. The routes that work today remain the written report to the landlord, the Gas Safety Record request, and the council's Environmental Health office where the home fails the fitness standard.

Where the household's independence ends

A tenant's energy independence is limited by design. The building fabric, the heating system and often the meter belong to someone else. Where the tenant pays the bills, they can choose to switch supplier or tariff at any time³⁰. Where the building sits on a landlord's business contract, residents may not have the right to choose their own energy supplier or switch suppliers themselves³¹. Smart meters follow the same split: private renters can choose a smart meter if the energy bills are in their name or they prepay for energy, after checking the tenancy agreement and letting the landlord know³², but where the landlord pays the bills directly to the supplier, it is their decision³³. Prepayment meters can be changed to credit meters once any debt on the account is settled, at the supplier's discretion³⁴.

What a household can control is the evidence trail, the moisture sources inside the home, the indoor temperature floor, and the escalation routes. That is a real form of leverage even where the building itself is not the tenant's to change.