Two pieces that look equally worn may need different treatment. The right approach depends on the material, the existing coating and the kind of damage.
Start with the existing surface
Polishing usually focuses on refreshing an existing finish. Refinishing involves more substantial preparation and a new coating. Ask which approach is being proposed and why it suits your furniture.
Discuss colour and sheen separately
A lighter or darker colour changes the appearance of the timber, while the sheen affects how it reflects light. Bring reference images and ask how the original grain and finish may influence the result.
Ask about care after the work
Different finishes have different drying, curing and cleaning requirements. Ask when the furniture can return to normal use and which care guidance applies to the finished piece.