Hi,
It's always difficuilt to suggest prices for someone else.
Only you will know your overheads and how much you'd like to earn. But I would say that you're quite cheap at £25, does this apply to caravans of differing sizes, (2Berth / 6 Berth ) ? I can tel you from experience that it isn't a 5 minute job to do well. Particularly if you're doing the roof which will have various vents, aerials etc. to get around.
It might be an idea to vary your prices according to the number of berths.
I clean the outside of a large motorhome and it can take anything up to 5 hours, especially when covered in splattered flies in the summer after a trip. Mind you it is a twin rear axled beast which gets used all year round.
I went to a local Caravan outlet and found various products for cleaning the Caravans. 'Bobby Dazzler ' is very good and they're all pretty easy to use.
hope it helps.
Les
