An extension, a changed floor plan or a different use for a room can alter its heating needs. Share plans and room dimensions alongside details of the current boiler and radiators.
Agree whether the work involves individual components or a wider system change. Pipe routes, floor access, controls and the sequence of other renovation work can all affect the installation.
Ask how the completed work will be checked and explained at handover. Understanding your controls is part of making the most of the system.