What to Ask Before Wallpaper Hanging Begins
The questions worth asking before wallpaper is hung are about the wall underneath, not the paper itself. In Victorian, Edwardian, and Georgian homes, plaster rarely behaves like a modern flat surface, so the consultation should establish how the decorator will prepare it, whether lining paper is needed, and how seams and pattern repeats will be handled in rooms with chimney breasts, cornices, and out-of-square corners. A decorator who answers these questions in detail is showing you how the finished room will actually be achieved.
Start With the Wall, Not the Roll
Ask what the decorator expects to find beneath the existing finish. Old plaster can carry hairline cracks, previous patches, or residue from earlier wallpaper, and each of these changes the preparation. A useful question is whether the walls will be lined before the paper goes up, and if so, what grade of lining paper will be used. Lining evens out minor imperfections and gives the finished paper a consistent surface, which matters most on walls that catch the light along a hallway or stairwell.
If the room currently has wallpaper on it, ask how removal and the preparation after it will be handled. Stripping old paper from period plaster needs patience rather than force, and the wall should be allowed to dry and be made good before anything new is applied. Getting a clear answer here tells you the decorator is treating the substrate as the foundation of the job.
Ask About Pattern, Seams, and Corners
Patterned papers behave differently from plain ones. Ask how the pattern repeat will be matched across the room, and where the decorator plans to place the fall of the pattern at the ceiling line and around windows. In older properties, corners are rarely true, so it is reasonable to ask how seams will be kept straight when the walls are not. A decorator experienced in period-property decorating will have a method for this and will be able to describe it plainly.
For papers with a visible texture or a delicate surface, ask how the paste will be applied and how excess will be cleaned off without marking the face of the paper. These are small process details, but they are the difference between a room that looks effortless and one where the joins draw the eye.
Agree the Room's Practical Boundaries
Ask what will happen to radiators, switch plates, and existing joinery. Skirting boards, window surrounds, and door frames in period homes are often being painted as part of the same room refresh, so it is worth confirming whether wall and woodwork preparation will be done in one coordinated sequence or treated as separate stages. Sequencing matters: woodwork painted after the paper is hung needs careful cutting-in, while woodwork done first needs protecting.
It is also fair to ask how the room will be left at the end of each day, and what protection will be used on floors and furniture. Clear answers to housekeeping questions are a good sign of how the whole project will be run.
Use the Consultation to Judge the Answers
The consultation is your best chance to see how a decorator thinks. Bring photographs of the room if you can, and ask whether they would suggest a different approach for the walls you actually have. A decorator who talks through your specific room, rather than a generic process, is one who will adapt the specification to the property rather than force the property to fit the specification. You can see how finished rooms have been approached in Selected decorating and finish projects.
If the answers are specific, calm, and grounded in the surfaces in front of you, you have the basis for a confident booking. If they are vague about preparation, ask again before agreeing anything, because in wallpaper hanging the preparation is the job.