
£250/hour
from £140/one off
Moss and algae rarely appear overnight. They build up slowly, often starting in shaded corners or north facing slopes, before spreading across the whole roof. By the time it is obvious from street level, cleaning is usually overdue.
The total cost depends on roof size, access, and whether the job is a manual scrape and biocide treatment or a full steam clean.
Specialists covering Richmond also work across Greenford, Isleworth, Harrow and Southall. Bark helps homeowners compare local roof cleaners and request free, no obligation quotes.
Bark's data suggests roof cleaning in Richmond typically costs £400 to £1,000 per job, roughly £8.50 to £14 per square metre, with the total depending on roof size, access, and whether it is a manual scrape and biocide treatment or a full steam clean.
Yes, removing moss and green staining from a roof noticeably improves how a property looks from the street, which can help when marketing a home.
Every two to five years suits most properties, though roofs shaded by trees may need attention more frequently.
Fascia and soffit cleaning is typically included alongside the roof itself, and any obvious gutter issues are usually flagged during the visit.