The chosen position should allow for doors, furniture and normal room use. Agree the layout before drilling. A wall photograph with approximate dimensions can help identify conflicts without relying on a generic hanging height that may not suit the space.
A previous fixing position may be convenient but still unsuitable for the new item or its hanging system. Show any damaged wall finish around it. Filling old holes and repainting are separate tasks that should be specified in the enquiry.
List the weight and fittings for each picture or mirror separately. Similar dimensions can conceal very different loads. A combined request helps plan the visit, but every object still needs compatible support and its own agreed position and handling requirements.
The agreed service covers layout, hanging-system and substrate review, compatible fixings for assessed loads. Exclusions: Glass cutting, frameless glazing, conservation handling, oversized unsupported loads, electrical work.