Staining from a leak or damp wall needs its cause addressed before a cosmetic finish is considered. Explain any moisture history and whether the area is dry. Touch-up paint is not a remedy for an active leak or concealed building defect.
Peeling, powdery or poorly bonded paint may not accept a simple topcoat. The surface and any preparation method need review. Hazardous coatings or suspected asbestos must not be disturbed as part of an ordinary small painting request.
Furniture, curtains and floor edges need room for suitable protection. Explain what can be moved before the appointment and anything fragile nearby. Preparation time depends on access as well as the size of the visible mark, especially in occupied rooms.
The agreed service covers sound interior walls, light preparation, agreed local coating and colour-match assessment. Exclusions: Whole-house repainting, external facades, unresolved damp, lead/asbestos disturbance, structural patch work.