Range from the cheapest Wallpapering £270 (Allyouneedecorating based in SW16) to the dearest Wallpapering £470 (Tradesmen&labour supply limited based in SW16).
Comparing painter & decorators estimates for Wallpapering 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 wallpapering your rooms by posting your job to painter & decorators in SW16.