A moving bracket can place different demands on its supports as it extends or turns. Provide the full instructions and intended movement. Its load rating and the wall attachment both need review; screen weight alone is not the complete assessment.
Show the existing fixing arrangement and all retained hardware if a bracket is to be reused. Unknown condition or missing locking parts can make reuse unsuitable. Existing holes should not be treated as proof that the previous installation was correct.
A large screen needs suitable handling space and a clear route to the wall. Mention stairs, tight rooms and fragile surroundings. Screen size and access help plan the job; the customer should not be expected to improvise unsafe lifting assistance.
The agreed service covers product/weight/bracket/substrate review and mechanical installation where suitable. Exclusions: Power points, in-wall wiring/cabling, electrical work, structural alteration, unsuitable mounts.