A few clear photos can help you explain what you have noticed when you contact us about your home.
Start with the whole room
Take one wider photograph showing the affected wall and its surroundings. Then take a closer photograph of the mark itself. Include nearby windows, doors or pipes in the wider view when they help show the location.
Keep a useful record
Keep the original photographs with their dates. If the appearance changes, photograph the same area again from a similar position. Add a short note describing the room and when you first noticed the issue.
Send the context with the image
Tell us which room is affected, whether the mark has changed and whether any work has already been done there. Photos are useful for starting the conversation; a visit may still be needed to understand the cause.