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Landlords are being reminded that rising temperatures inside rental properties could have legal consequences if homes become unsafe for tenants. While much of the recent focus has been on cold weather and damp conditions, experts say excessive heat should not be overlooked, particularly during periods of unusually warm weather.
Although temperatures may have eased slightly compared with earlier in the week, property professionals are urging landlords to remain vigilant. Heatwaves and prolonged periods of hot weather can create uncomfortable living conditions, and in some cases may present genuine health risks for tenants.
According to Landlord Resource, landlords should take a proactive approach when dealing with complaints relating to overheating. While there is no legal requirement for rental properties to include air conditioning, landlords are still responsible for ensuring their properties are safe and free from hazards that could affect tenants’ wellbeing.
Jack Malnick, co-founder of Landlord Resource, has stressed that landlords should familiarise themselves with the Housing Health and Safety Rating System (HHSRS). This framework is used by local authorities to assess whether residential properties contain hazards that could put occupants at risk.
One area receiving increased attention is excessive indoor heat. The HHSRS now recognises overheating as a potential hazard where high temperatures inside a property could negatively affect a tenant’s health. This means landlords may need to address issues that contribute to excessive heat, particularly if they result from poor maintenance or inadequate ventilation.
The guidance does not mean landlords must install air conditioning systems. Instead, it focuses on ensuring that properties are capable of maintaining safe living conditions. If a home cannot be properly ventilated or cooled due to repair issues or structural problems, local authorities may decide that action is necessary.
Ventilation plays a particularly important role during warmer months. Poor airflow can not only make properties unbearably hot but can also contribute to other problems, including damp and mould, especially where moisture cannot escape effectively.
Councils already have powers to intervene where serious housing hazards exist. Since June 2026, local authorities in England have been given stronger enforcement powers under the HHSRS. These include the ability to issue financial penalties of up to £7,000 for each serious hazard identified within a rental property.
Although these penalties are not aimed specifically at overheating, they may apply where landlords fail to deal with serious issues that contribute to unsafe living conditions. This could include ignoring repairs that prevent adequate ventilation or failing to address structural defects that increase indoor temperatures.
Several common maintenance problems may give tenants valid grounds to raise concerns. Windows that are damaged or cannot be opened can prevent fresh air from circulating through the property. Likewise, broken extractor fans or faulty ventilation systems may significantly reduce airflow.
Other issues could include damaged blinds, shutters or similar fittings that would normally help keep indoor temperatures down during hot weather. Structural defects affecting insulation, ventilation or overall comfort may also need attention if they increase the risk of overheating.
If tenants contact their landlord about excessive heat, experts recommend treating the matter seriously, particularly if the tenant mentions health concerns or belongs to a vulnerable group. Older people, young children and individuals with existing medical conditions may be more susceptible to heat-related illnesses.
Rather than viewing overheating complaints as routine maintenance requests, landlords should respond promptly and assess whether immediate action is needed. Addressing concerns early may help prevent more serious problems and reduce the likelihood of disputes or enforcement action.
Simple measures may often provide temporary relief while longer-term solutions are considered. Installing or repairing blinds, improving ventilation or allowing tenants to use portable air conditioning units where practical may help reduce indoor temperatures during hot weather.
Where overheating becomes a recurring issue, landlords may wish to consider more permanent improvements. These could include installing additional shading, improving insulation, upgrading ventilation systems or making other property adjustments that help regulate indoor temperatures throughout the year.
It is also important for landlords to maintain clear records whenever a tenant reports excessive heat. Keeping details of complaints, photographs, maintenance work and temperature readings where available can help demonstrate that concerns have been taken seriously and addressed appropriately.
As weather patterns become increasingly unpredictable, overheating is becoming a more important consideration for landlords managing rental properties. Although there is no obligation to provide cooling systems, landlords remain responsible for ensuring their properties do not pose avoidable health risks.
By responding quickly to maintenance issues, improving ventilation where necessary and understanding their responsibilities under the Housing Health and Safety Rating System, landlords can help protect both their tenants and their investment while reducing the risk of legal action or financial penalties.
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