Agree the finish around the existing growth
Different sections of a hedge can need different attention. One part may be fuller than another, while an end section could be shaped by a gate or neighbouring planting. Show those variations clearly.
Tell us about gaps, weak sections or places where growth has become tangled with another plant. A photograph looking directly at the hedge and one from an angle can help explain its condition.
If you are unsure how much to trim, describe the practical aim. You may need a path opened, a clearer view of the border or a more even appearance along the boundary. The existing growth needs assessing before that finish is agreed.
Working space matters
Photograph the area beside the hedge, including beds, fences and stored objects. Mention whether the opposite side is accessible. If permission is needed to enter neighbouring land, explain the arrangement rather than assuming that route can be used.
A gate, narrow passage or steps can also affect access for tools and handling the clippings. Include the route from the entrance to the hedge. If other gardening is wanted, identify it separately so the hedge work remains clear within the enquiry.
Before the visit, point out delicate planting and anything that should stay in place. Let us know about visible nests or other features that need care around the work.