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Facade stain and discolouration assessment — Facade cleaner — Professionals
Discolouration enquiries suit providers able to separate deposited material from substrate deterioration or moisture-related problems. They should define the evidence needed, set trial limits and refer underlying defects rather than repeatedly treating symptoms without explanation.
Service scope
Investigation and targeted treatment of exterior discolouration where the cause and substrate must be identified before cleaning. Biological growth, deposited dirt, staining and changes within the material can require different responses; colour variation is not always removable contamination.
What is normally included
- Review of staining history and pattern
- Material-appropriate assessment or trials
- Agreed reduction of treatable discolouration
What is not included
- Guaranteed uniform colour on weathered materials
- Cosmetic treatment presented as a repair of the underlying moisture source
Qualification checks
- Review stain distribution and onset
- Identify substrate and finishes
- Check prior attempts and recurrence
- Assess whether investigation precedes treatment
- Agree realistic result and referral boundaries
Quote guidance
Separate investigation or trials from the full cleaning proposal. State what result is expected and identify moisture repairs or material replacement as separate work rather than embedding an unsupported stain-removal guarantee in the price.
Lead risks
- The apparent stain may be intrinsic material variation
- An unresolved water source may cause marks to return
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