This is dependent on the type of roof. In most cases, you can gain access to a single story flat roof via a ladder or alley tower.
Depending on the size of your roof and the task at hand, the time frame will vary. However, before we begin work, we will give you an idea of how long the job will take to complete.
No answer is the same for everyone, this wholly depends on the damage. Though, it is essential to get the leak looked at immediately as any water damage could cause further problems, with damp affecting the woodwork and ceilings below. A simple repair will often be the solution.