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Facade stain and discolouration assessment — Facade cleaner
Describe when the marks appeared, whether they return after cleaning and whether damp or runoff is visible nearby. Provide overall and close photographs so the provider can consider the pattern and source instead of choosing a treatment based only on the stain's colour.
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
Typical tasks
- Record the extent and history of marks
- Review substrate and nearby moisture paths
- Identify suitable further assessment
- Trial a compatible treatment where justified
- Explain residual variation and follow-up needs
What to include in your brief
- Stain photographs and timeline
- Material and coating details
- Previous cleaning or repairs
- Nearby leaks runoff or planting
- Desired appearance and access information
Choosing the right professional
Ask whether the provider is offering diagnosis, cleaning or both and how uncertainty will be handled. A useful proposal explains what can be treated and what may need another building specialist rather than promising the same colour across all weathered surfaces.
Important considerations
- Repeated cleaning may not address the cause of recurring marks
- Aggressive treatment can replace a stain with permanent surface damage
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Describe the work, choose the service and location, and receive relevant responses.