Range from the cheapest cost to paint a houses exterior £980 (K11 Plumbing and Property Maintenance based in SL9) to the dearest painting and decorating cost £2550 (Omer based in SL2).
Comparing painter & decorators estimates to Paint exterior of house gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for painting and decorating your houses exterior by posting your job to painter & decorators in SL1.