Measure the visible width and thickness where safe and show the board profile. Replacement timber can differ from weathered material in colour and texture. Discuss finish expectations before assuming a new paling will immediately blend with the older fence.
Post movement or failure belongs to a different assessment and may exceed a small repair. Describe leaning or movement in the whole section. Paling work is bounded to local boards on suitable support, not a way to conceal an unstable fence.
Identify how many palings are affected and where they have detached. Refixing may be possible when the boards and rails remain sound. A moving fence section needs a wider assessment rather than simply adding more screws through the visible boards.
The agreed service covers suitable local paling reattachment/replacement and compatible fixing review. Exclusions: Post repair (existing intent), major panel/fence replacement, retaining structures, boundary disputes, pool barriers, unstable supports.