A cracked pane after a break-in, a window that will not lock, or failed double glazing letting cold air into a flat can quickly become more than a maintenance job. Landlord window repair responsibilities usually cover keeping windows safe, secure, weatherproof and in proper working order – but the cause of the damage and the tenancy agreement can affect who pays.
For London landlords and letting agents, fast action matters. A damaged window can leave a property exposed to rain, heat loss, intruders and tenant complaints. Knowing where your duty starts helps you arrange the right repair without unnecessary delay or disagreement.
What are a landlord’s window repair responsibilities?
In most rented homes in England, landlords are responsible for the structure and exterior of the property under Section 11 of the Landlord and Tenant Act 1985. Windows form part of that exterior. This normally means the landlord must keep the window frames, sashes, glazing, locks supplied with the window, seals and opening mechanisms in repair.
The duty applies when the landlord has been told about the issue, or should reasonably have known about it. A tenant should report a fault as soon as possible, preferably in writing with photographs where useful. Once notified, the landlord must deal with repairs within a reasonable time. What is reasonable depends on the risk.
A smashed ground-floor window, a failed lock or a panel that could fall out needs urgent attention. A misted double-glazed unit may not always require an emergency call-out, but it should not be left indefinitely if it affects warmth, security or the condition of the property.
A landlord cannot simply pass their basic legal repair duty to the tenant through a tenancy agreement. Clauses can set out how faults must be reported or address damage caused by a tenant, but they cannot remove statutory responsibilities for the building itself.
Repairs commonly paid for by the landlord
A landlord will usually be responsible where a window has deteriorated through age, wear, poor installation or a defect. Typical examples include rotten timber frames, damaged hinges, broken catches, perished seals, draughty frames, loose panes and failed double-glazing units.
The same applies where a window has become difficult to open or close because the mechanism has worn out, or where a defective lock means the home cannot be properly secured. If the property was supplied with opening restrictors, safety catches or lockable handles, these should be kept in safe working condition.
For upper-floor flats, damaged glazing and loose frames deserve particular care. A pane, sash or frame that could fall poses a serious safety risk to people below as well as those living in the property.
When might a tenant be responsible?
Tenants are expected to use the property in a tenant-like manner. In practical terms, this means taking reasonable care, reporting problems promptly and not causing avoidable damage. If a tenant, member of their household or visitor breaks a window through carelessness or deliberate damage, the tenant may be liable for the cost of repair.
For example, a pane broken by an accidental impact inside the home may be chargeable to the tenant. So may a damaged handle caused by forcing a stuck window, rather than reporting that it was not working properly. The facts matter, though. If the handle was already worn or the window was poorly fitted, responsibility may still rest with the landlord.
Break-ins can be less straightforward. The immediate priority is to make the property safe and secure, often with emergency boarding followed by replacement glass. Whether an insurer covers the cost, and whether anyone is liable, can be established afterwards. Tenants should never be left with an unsafe or unsecured home while responsibility is debated.
Fair wear and tear is not tenant damage. Older paintwork, seals losing effectiveness over time and a double-glazed unit failing after years of normal use are maintenance issues, not reasons to deduct money automatically from a deposit.
Security and weatherproofing cannot wait
Not every window issue needs a same-day repair, but landlords should treat security and exposure as urgent. A cracked but intact inner pane may be manageable briefly, depending on its location and condition. A shattered pane, a window that cannot close, or a lock that no longer engages is different.
Prompt action can prevent a small fault becoming a costly claim. Rain entering around a failed frame can damage plaster, flooring and electrics. A window left open or unsecure can lead to theft, further vandalism or an uninhabitable room. In colder months, broken or poorly sealed glazing can also make it harder to keep a home adequately warm.
Where replacement glass cannot be fitted immediately, secure temporary boarding is often the sensible first step. It protects the property while the correct glass or replacement unit is measured and prepared. For an emergency in London, Glazing Squad can attend day or night to secure damaged windows and arrange the appropriate repair.
How quickly must a landlord repair a window?
The law does not set one fixed number of days for every repair. It requires landlords to act within a reasonable period after receiving notice. The more serious the problem, the faster the response should be.
A practical approach is to assess the issue on the day it is reported. If there is broken glass, a security failure, dangerous loose glazing, significant water ingress or a child-safety concern, arrange emergency attendance. If the window is safe and secure but has condensation between panes or a minor draught, book a repair visit promptly and keep the tenant informed.
Communication makes a real difference. Confirm that the report has been received, explain the next step and give a realistic appointment window. If parts or specialist glass are needed, tell the tenant what temporary measures are in place and when the permanent repair is expected. Silence often turns an otherwise manageable maintenance issue into a dispute.
Access, notice and emergency entry
Landlords need access to inspect and repair windows, but tenants have the right to quiet enjoyment of their home. For routine work, landlords should normally give at least 24 hours’ written notice and arrange a reasonable time for access.
Emergencies are different. If a broken window leaves the property exposed, water is entering, or there is an immediate safety or security risk, access may be needed without the usual notice period. Even then, it is good practice to make every reasonable effort to contact the tenant, explain why urgent entry is required and keep a record of the steps taken.
Letting agents should ensure contractors have accurate tenant contact details, property access instructions and clear authority to carry out urgent making-safe work. That preparation can save valuable time after an attempted burglary or storm damage.
Condensation, mould and failed double glazing
Window problems are not always caused by a broken pane. Condensation on the room-side of glass is often linked to moisture in the home, heating patterns and ventilation. A landlord may need to check whether extractor fans, background ventilation or the property’s insulation are adequate, while tenants should use supplied ventilation and report persistent mould early.
Condensation trapped between the two panes of a sealed unit usually points to a failed seal. The window may remain physically secure, but its insulation has been reduced and the view will often look cloudy. Replacing the glass unit is commonly more cost-effective than replacing the entire frame, provided the frame and mechanism remain sound.
It is worth avoiding assumptions. Mould around a window could arise from lifestyle, a cold bridge, defective seals, penetrating damp or several factors together. A proper inspection is more useful than blaming either party before the cause is clear.
Keep records before and after the repair
Good records protect both landlord and tenant. Keep the original report, photographs of the damage, dates of contact, contractor invoices and details of any temporary boarding. At the start and end of a tenancy, clear inventory photographs of windows, handles, locks and glazing make later questions about damage easier to resolve.
For managed portfolios, it helps to record recurring faults by property. Repeated cracked panes near a communal entrance, failing locks in the same block or regular water ingress around particular windows may point to a wider repair need rather than isolated incidents.
A practical response for landlords and agents
When a tenant reports a window issue, establish whether anyone is at risk, whether the home can be secured and whether rain or cold air is entering. Ask for photos if it is safe to do so, then arrange the level of response the fault requires. Do not ask a tenant to live with broken glass or an insecure window while fault is being decided.
The most reliable approach is simple: make the property safe first, inspect the cause properly, then complete a lasting repair and keep everyone informed. That protects the building, supports the tenant and helps avoid a small glazing problem becoming a larger and more expensive one.