How do we fix the ladder to an immovable object? It might be the use of slings, it might be the use of ropes, we might need to peg the heel of the ladder down to the ground, might need to use bolt holes. It may be we can fix the ladder at the top of a roof. We might need to use levelling devices, and there is a whole range of different levelling devices that you can either buy or hire. It may be that even the type of ladder itself can be changed. There are some that actually have additional legs, that then fit around the corner of the building for stability. There are some systems where we can have multiple ladders fixed together, and a platform can actually be fitted to it. There are fixings that actually will go around a gutter. So, stop and look, what is available, and get the right fixings for the ladder.