Emergency Heating for Tenants — Landlord Obligations in Cold Weather

When a tenant's heating fails in winter, what are a landlord's exact obligations? This guide covers emergency heating provision, timescales, the 18°C health standard, and how to avoid legal exposure.
What Are a Landlord's Obligations When Heating Fails in Winter?
When a tenant reports heating failure in cold weather, a landlord's obligations are more demanding than many realise. The legal framework comes from multiple sources — Section 11 of the Landlord and Tenant Act 1985, HHSRS, and the Homes (Fitness for Human Habitation) Act 2018 — and they interact to create a high standard of obligation in cold weather.
The 18°C Health Standard
The World Health Organisation recommends a minimum indoor temperature of 18°C for healthy adults (21°C for elderly people, young children and those with health conditions). The Housing Health and Safety Rating System (HHSRS) uses 18°C as the threshold below which a property is at risk of Category 1 excess cold hazard.
A property that cannot maintain 18°C in the main living areas is in a Category 1 hazardous condition under HHSRS — which the landlord has a legal duty to remedy.
Required Response Timeline
There is no single fixed statutory deadline, but case law and local authority guidance consistently suggest:
- Same day: Acknowledge the tenant's report. Assess whether temporary heating is needed immediately (is it below 5°C outside? Are vulnerable occupants present? Is it night-time?).
- Within 24 hours: For complete heating failure in cold weather — arrange an engineer visit to diagnose the fault.
- Within 48-72 hours: Have a repair plan confirmed, even if the repair itself takes longer for parts procurement.
- Temporary heating: If repair takes more than 24 hours in cold conditions, provide adequate temporary electric heating.
Temporary Heating Provision
When a boiler breakdown will extend beyond 24 hours in cold weather, providing temporary electric panel heaters or oil-filled radiators is both good practice and arguably legally required to maintain the property's habitability.
Practical approach for London landlords with a managed portfolio:
- Maintain 2-3 portable electric panel heaters (1-2kW) in storage for exactly this situation
- Arrange next-day delivery via Amazon or hire from a local tool hire company if needed immediately
- Charge the cost to the property maintenance account — this is not a discretionary gesture, it is mitigation of the landlord's legal exposure
If the Boiler Needs Replacing
Boiler replacements take longer than repairs. In London, a like-for-like combi replacement typically takes 1-3 days from order to installation for a standard boiler from stock. Custom or less common boilers may take 1-2 weeks on special order.
During this period, the landlord must provide adequate alternative heating — temporary heaters in all habitable rooms. If the property also has no hot water, portable electric showers or arranging access to showering facilities may be required.
Frequently asked questions
How quickly must a landlord fix broken heating in winter?
There is no absolute statutory deadline, but courts have found that leaving tenants without heating in cold weather for more than 24-48 hours without providing alternatives is a breach of the landlord's obligations. Tenants in these circumstances can seek damages and, in serious cases, apply for rent reduction.
Does a landlord have to provide temporary heating when the boiler breaks?
Strictly speaking, the law requires the property to be habitable and maintained at safe temperatures — the means of achieving this is not prescribed. In practice, providing temporary electric heaters when a repair will take more than 24 hours in cold weather is the expected standard and significantly reduces the landlord's legal exposure.
What temperature must a rental property be heated to?
The HHSRS uses 18°C as the minimum safe temperature for healthy adults, 21°C for vulnerable occupants (elderly, young children, those with health conditions). A property unable to maintain these temperatures has a Category 1 excess cold hazard that the landlord must remedy.
Can a tenant deduct the cost of temporary heating from rent?
Not without following a legal process — tenants cannot unilaterally deduct from rent. However, tenants can pursue a claim for the cost of temporary heaters they purchased themselves through the county court or the Property Ombudsman if the landlord failed to provide them in a timely manner.