Who is responsible for a broken thermostat in a rented home?

In England, the landlord is normally responsible when a supplied thermostat fails and the heating system no longer works properly. The tenant should report the fault promptly, use the controls reasonably and provide access for repair. Responsibility can differ if the tenant supplied the control or caused the damage.

This guide explains the usual position for private renting in England. Scotland, Wales and Northern Ireland have their own housing rules, and an unusual tenancy or licence may need individual advice.

Why the thermostat is usually part of the heating system

A room thermostat tells the heating when the home needs warmth. If it cannot send that demand, the boiler and radiators may remain cold even though the boiler itself is working.

Government guidance says landlords are normally responsible for repairs to heating and hot-water systems. A thermostat supplied with the property is ordinarily a control for that installation, not simply a decorative fitting or a tenant’s personal appliance.

The tenant should report the fault

Tell the landlord or managing agent as soon as the thermostat stops controlling the heating. Report it in writing so there is a clear date and description. Include the property address, thermostat make if visible, what the screen shows and whether heating and hot water are affected.

Photographs or a short video can help. Note when the fault began, whether the thermostat is wired or wireless, and whether any low-battery symbol appeared. Do not remove a wired control from the wall or open the boiler.

Simple checks a tenant can make

Use only normal user controls. Check that the thermostat is set above the current room temperature, that its schedule is not in an off period and that the boiler has power. If the user instructions describe replacing ordinary thermostat batteries, that is usually a reasonable first check.

Make a note before changing schedules or modes so they can be restored. Do not bridge wires, remove covers, re-pair controls using installer menus or repeatedly reset the boiler. A blank display can be a flat battery, lost power or a failed control; it does not prove which part needs replacing.

When the tenant may be responsible

Tenants are generally expected to take reasonable care of the property. If a tenant, household member or visitor physically damages a thermostat, the landlord may seek the cost of putting that damage right. The tenancy agreement and evidence of what happened matter.

A tenant may also be responsible for a smart thermostat they bought and fitted with permission, depending on the agreement. That does not remove the landlord’s wider responsibility to keep the supplied heating installation in working order.

What if the batteries are flat?

Small consumables such as user-replaceable batteries may be treated differently from a failed heating component. Check the tenancy agreement and thermostat instructions. If new batteries do not restore the control, report that clearly rather than continuing to buy batteries.

Never put batteries into a control that is hot, wet, corroded or visibly damaged. Send a photograph and wait for advice.

What if heating still works manually?

A manual override can sometimes provide temporary heat, but it is not a complete repair if the home can no longer regulate temperature or follow its schedule. Tell the landlord exactly what still works and what does not.

Do not leave the heating running continuously as a substitute for a functioning thermostat. It can waste energy, overheat rooms and make the underlying fault harder to assess.

How quickly should it be dealt with?

There is no single repair time that fits every case. Urgency depends on outside temperature, whether there is any usable heating, the occupants’ health and vulnerability, and whether hot water is also lost. A complete heating failure in cold weather needs faster action than a minor scheduling fault with safe temporary heating available.

Tell the landlord about young children, older occupants, disability or a health condition that makes cold especially risky. If the property cannot be kept reasonably warm, say so plainly rather than describing only the thermostat screen.

Landlord and agent steps

Acknowledge the report, ask for the useful observations, and arrange competent diagnosis. The cause may be the thermostat, receiver, wiring, boiler controls or power supply. Replacing the visible control without testing the system can leave the real fault unresolved.

Give at least 24 hours’ notice for a non-emergency inspection at a reasonable time in England. Emergency access can be different. Keep a record of contact, appointments, findings and completed work.

Who should repair it?

A battery-only control may need no specialist work if its instructions identify battery replacement as a user task. Fixed electrical work should be completed by someone competent. Work on or inside a gas boiler must be done by a suitably qualified Gas Safe registered engineer.

The engineer should be given the boiler and control models, any error code and the tenant’s description. Do not ask a tenant to open a receiver, test mains wiring or remove the boiler casing.

If the landlord does not respond

Keep copies of messages and follow up in writing. Citizens Advice or a local housing adviser can help a tenant understand the next step. GOV.UK says a tenant can contact the council’s environmental health department where disrepair could harm health.

Do not simply stop paying rent. Government guidance says rent should continue to be paid while repairs are awaited. Get individual advice before arranging work yourself or trying to deduct a cost from rent.

What about social housing?

Council and housing-association tenants should use their landlord’s repair-reporting route and emergency-heating process. Their tenancy terms and complaints procedure may differ from private renting, but loss of effective heating should still be reported with the same clear evidence.

What about a lodger or holiday let?

A lodger living with a resident landlord may have a licence rather than a tenancy. Holiday accommodation and short lets can also sit under different arrangements. The owner still has gas-safety duties, but the repair process and wider housing rights may differ. Seek tailored advice if responsibility is disputed.

Common questions

Can a landlord ask the tenant to replace thermostat batteries?

They can ask the tenant to carry out a simple user task described by the instructions. If the control remains faulty, the heating repair should be reported and diagnosed.

Can the tenant install a smart thermostat?

Not without checking the tenancy terms and getting written permission where required. Installation can involve fixed wiring and boiler controls, so it needs the right competence.

Does a working boiler mean the landlord has no responsibility?

No. If a failed supplied control prevents the heating system working properly, the installation may still need repair even though the boiler can produce heat.

Related guides: What should a landlord record when a tenant reports a boiler fault? and How should heating be controlled in an HMO?