I'm looking for a careful cleaner to wash a wall in my living room. The wall has some light wallpaper dust and a few marks from furniture rubbing against it. I want a gentle but effective approach that won’t damage the surface. Please bring appropriate cleaning products suitable for wallpapered walls or painted surfaces, and let me know if any prep is required (moving small furniture, covering nearby items). I’d prefer a daytime slot and a single visit for this task, with clear communication about progress and any spots that may need extra attention.