Where is the damaged line?
Describe the first visible moisture and which fixtures or floors are nearby. The provider should assess the pipe route before deciding where to open the wall.
What access is required?
Ask how large an opening is expected and what finish is involved. Tile, cabinets and fitted furniture can change access work.
What is included in the pipe repair?
Ask which section and fittings will be replaced, whether adjacent pipe is sound and what would change the scope once access is available.
Who handles the wet cavity?
Closing an opening and drying the surrounding materials are different jobs. Agree who assesses drying and when the wall can be closed.
How will the repair be checked?
Ask how the connection will be checked after water is restored and what observations to report afterward. Keep the provider’s written instructions.