Roof Cleaning in Cobham, Surrey
Cobham's leafy, mature gardens and damp Surrey microclimate make local roofs unusually prone to moss, lichen and gloeocapsa magma (the black streak algae). Our Cobham-based team specialises in low-pressure soft wash roof cleaning that restores tiles without ever damaging the surface.
What's included
- BS 8000-compliant soft wash systems — never high-pressure on fragile tiles
- DEFRA-approved biocide treatment that kills spores to the root
- Full PASMA / IPAF trained access teams with £5m public liability
- Free drone roof survey with every quote
- Average Cobham semi-detached cleaned in 1 day
- 12-month no-moss guarantee on full soft wash treatments
Our process
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Step 1
Free drone survey
We map your roof remotely so you get an accurate fixed quote within 24 hours — no guesswork, no surprise charges.
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Step 2
Scaffold or rope access
Most Cobham properties are completed from a roof ladder and harness; larger Victorian or chalet-style roofs may require a tower scaffold.
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Step 3
Manual moss scraping
Heavy moss is gently removed by hand to protect the tile glaze. We never blast or pressure-wash organic growth off.
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Step 4
Soft wash biocide
A low-pressure application of a DEFRA-approved sodium-hypochlorite blend kills algae, lichen and moss spores at the root.
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Step 5
Gutter clear & flush
All debris is cleared from gutters, downpipes flushed, and pathways jet-washed back to clean.
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Step 6
12-month protection
An optional clear polymer sealant slows regrowth and extends the clean appearance for up to 5 years.
Indicative 2026 pricing
| Terraced (≤80 m²) | £295 – £450 | Standard 2-bed terrace |
| Semi-detached (80–130 m²) | £450 – £750 | Most Cobham homes |
| Detached (130–220 m²) | £750 – £1,250 | |
| Large detached / chalet | £1,250 – £2,400+ | Scaffold may be required |
Frequently asked questions
How long does roof cleaning take in Cobham?
A typical semi-detached takes 1 working day. Larger detached homes with heavy moss may require 2 days plus a follow-up biocide visit.
Do you guarantee the work?
Yes — all full soft wash cleans include a 12-month no-moss guarantee. We return free of charge if regrowth appears within the period.
Will pressure washing damage my tiles?
It can — that's why we never high-pressure wash residential roofs. Our soft wash system uses garden-hose pressure with a biocide that does the work chemically.
Is it safe to clean a roof in winter?
Soft wash is effective year-round in Cobham as long as temperatures stay above 4°C. Heavy frost or snow days are postponed.