Restorative cleaning is cleaning intended to address accumulated soil or event-related residue beyond ordinary upkeep, where the material is suitable for treatment.
What this means at your property
A smoke-affected cabinet and a heavily soiled carpet present different material and residue questions. The aim should be stated clearly, including appearance expectations and conditions that may require repair or replacement instead.
How should expectations be agreed?
Ask for an assessment of the surface, any appropriate test area and the limits of the proposed process. Document existing wear or permanent changes so cleaning performance is not confused with reversal of every pre-existing defect.