- Knowing how long the process will take helps with scheduling and planning, especially if it involves multiple rooms or custom designs. 5. **How do you prepare walls before installing wallpaper, and is this included in the service fee?

- Knowing how long the process will take helps with scheduling and planning, especially if it involves multiple rooms or custom designs. 5. **How do you prepare walls before installing wallpaper, and is this included in the service fee?