Depending on the project, items related to personal style — such as faucets, sinks, lighting, flooring, cabinets, paint colors, or finishes that match the desired look of the space and personal preferences — are generally recommended to be selected by the client.
As for technical materials and installation-related supplies — such as drywall, lumber, hardware, fasteners, or similar building materials — the purchasing process can usually be handled without requiring direct involvement, helping keep the project smoother, more convenient, and aligned with the necessary technical requirements.