How much time should I give my Landlord to carry out repairs?
It would not be reasonable to expect your landlord to carry out repairs immediately or even within 48 hours depending on the severity of the hazard created by the disrepair. You must allow a reasonable time period, and cooperate with regard to access to enable estimates to be obtained.
For example if your boiler is not working and you are without hot water and/or heating a period of 1-2 weeks should be adequate to enable your landlord to provide you with start and completion date, if not complete the repairs.