Range from the cheapest Wallpapering £290 (House Reputation Northampton based in NN3) to the dearest Wallpapering £500 (One Click Contractors based in MK4).
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 Northampton.