Landlords have a legal responsibility to provide premises for their tenants which are safe and well maintained. Security should also be a consideration.
Apart from the safety aspects such as gas and electrical checks, carbon monoxide and smoke alarms, legionella checks and energy efficiency (EPC), homes need to be reasonably well protected from break-ins and burglaries.
Modern safe and secure doors and windows not only improve the energy efficiency of a home, they give maximum protection against crime.
External lighting not only helps prevent accidents, again it helps deter crime.
This infographic relates to Northern Ireland, but the same issues apply across the UK.
Source: Senator Windows