A mirror can be heavier than its appearance suggests. Provide weight information and a photograph of its rear hanging system. The wall fixing and the fittings on the frame must both suit the load; neither should be judged from the front view alone.
Masonry, plasterboard and other surfaces need different fixing assessments. Share what is known about the wall and nearby services. Existing holes do not establish suitable support for a heavier object, and unknown construction can require further review before installation.
A picture arrangement benefits from an agreed layout before holes are made. Show the items together and mark the desired area in a room photo. Discuss spacing and alignment without assuming that a single-item quote includes an entire gallery wall.
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.