Every property will begin to age over time, nothing more so than the roof. This delicate part of a property will only be able to hold up unmaintained for a certain number of years, and as this begins to age, you might also begin to notice things like chips on your window frames, or peeling paintwork on your rendering. It might be time for a wholesale property repair.
Many contractors will be able to complete all of the work for you, repairing your flat roof and renovating it to a high quality, as well as being able to carry out general external maintenance as well. You will find that the more a contractor can do, the more value for money you will get from it, and they may be willing to give you a good rate if you book their services over a longer period of time and engage them in multiple maintenance tasks.