Soft Wash Roof Cleaning in Cobham
Soft washing is the modern, manufacturer-approved way to clean a tiled roof. Instead of blasting growth off with water, we apply a low-pressure biocide that kills moss, algae and lichen at the root — then lets weathering wash the residue away naturally.
What's included
- Pressure no higher than a garden hose
- Approved by tile manufacturers including Marley, Redland and Sandtoft
- Won't void roofing warranties
- Kills moss, algae, lichen and gloeocapsa magma
Our process
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Step 1
Pre-rinse
Plants and paths around the property are pre-wetted to protect them from runoff.
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Step 2
Biocide application
Diluted sodium-hypochlorite biocide is sprayed at <100 psi over every tile, valley and ridge.
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Step 3
Dwell time
Solution dwells for 15–30 minutes, killing organic growth to the root.
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Step 4
Light rinse & gutter flush
Loose debris is rinsed away and gutters fully cleared.
Frequently asked questions
Is soft washing better than pressure washing?
For residential roofs in Cobham, yes. Pressure washing strips the tile surface coating and can force water under tiles. Soft washing is the only method endorsed by major UK tile manufacturers.
How long does a soft wash last?
On a typical Cobham roof, visual results last 4–6 years before another full treatment is needed. Annual top-up biocide visits can extend that further.