Common assumptions that lead to overruns
People often underestimate the effect of a long walk from van to door, a lift that is slower than expected, or keys that are not ready when the crew arrives. None of those look dramatic, but together they can stretch a smaller booking.
How to avoid quiet cost drift
Describe the access route honestly, keep the unloading side as ready as the pickup side, and avoid guessing about where the van can stand. The clearer the plan, the less chance there is of labour time creeping upward.