Range from the cheapest Wallpapering £280 (AD-Plastering based in CM4) to the dearest Wallpapering £350 (Pickrell Interiors Limited based in SS7).
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 SS12.