This depends on the seriousness of the problem. Urgent issues, such as no heating, no hot water, serious leaks, sewage problems or dangerous electrics, should usually be dealt with quickly. Less urgent repairs may reasonably take longer, but tenants should not be left for weeks or months in poor conditions without a proper response.

The key question is whether the landlord acted within a reasonable time after being made aware of the issue. If the same problem keeps returning, or contractors attend without fixing the root cause, that may also support a claim.