Professional cleaning starts with the lowest-strength, most reversible approach available. Escalate only if the remaining issue is soiling and the base remains stable.
Check first
- Can dry methods solve the problem?
- Record the product and contact time at each stage.
- Compare stain reduction with changes to the original colour.
- Remember that tools, pressure and repetition also determine strength.
Working sequence
- Remove dust dry.
- Spot-test a mild product.
- Keep local contact brief.
- Allow the surface to stabilise before judging whether escalation is necessary.
Repeated mild treatment can accumulate into aggressive treatment. Stop if the original colour, feel or sheen changes before the soiling improves.