I will most likely replace this window ledge before the summer is out but in the meantime, one advantage of having to paint some rubbish like this is it doesn't matter too much if you mess it up!
For all that, I don't want to mess it up too badly, so with no experience at this, I imagine you could just buy some sandpaper from Wilkes or Wilko, sand the ledge down, then on a sunny, warm-ish day use some black paint for wood from Wilko and paint it on?
I just want it to look okay from the pavement.
For all that, to replace this ledge, does you book a carpenter? When we had Anglia do our windows some years ago, they put in a new ledge albeit a relatively unattractive white non-wooden one, so I'm not used to just getting someone in to do that.
Ditto front rails. I could get someone in for this, but basically I just wash them down, paint on some black paint for metal and leave it?