Roof Cleaning Cobham — moss removal & soft wash experts
Cobham's local specialist team for low-pressure soft wash roof cleaning, moss removal, gutter clearing and full roof restoration. Free drone survey, fixed-price quote within 24 hours and a written 12-month no-moss guarantee.
12 yrs
serving Cobham
1,400+
Surrey roofs cleaned
12 month
no-moss guarantee
£5m
public liability
Cobham roof cleaning services
Whatever's growing on your roof — moss, lichen, algae or just years of grime — we have a tile-safe specialist service for it.
Roof Cleaning Cobham
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.
Learn moreRoof Moss Removal Cobham
Moss is the single biggest cause of premature tile failure in Cobham. Once colonies thicken, they hold water against the tile, freeze in winter and crack the surface glaze. Our two-stage removal process strips the moss safely and prevents it returning.
Learn moreSoft Wash Roof Cleaning 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.
Learn moreRoof Pressure Washing Cobham
Pressure washing has a place — concrete tiles with very heavy organic build-up, flat felt roofs and certain commercial substrates can tolerate controlled pressure. For most Cobham homes, however, low-pressure soft washing is safer and longer-lasting. We'll honestly tell you which your roof needs.
Learn moreGutter Cleaning Cobham
Blocked gutters are the single most common cause of damp staining on Cobham's older brickwork. We use a 40-foot carbon-fibre gutter vacuum to clear leaves, moss and silt without ladders on the lawn — and send you CCTV footage of the before-and-after.
Learn moreRoof Algae Removal Cobham
Those dark vertical streaks on north-facing roofs aren't dirt — they're a cyanobacteria called gloeocapsa magma. We treat it with a tile-safe biocide that kills the colony and lets rainfall lift the residue away naturally over 2–4 weeks.
Learn moreRoof Cleaning Cost Cobham
Roof cleaning in Cobham typically costs between £295 and £1,250 depending on size, pitch, moss depth and access. This is the only fully transparent 2026 price guide for the local area — based on the last 400 jobs we've quoted within the KT11 postcode.
Learn moreTile Roof Cleaning Cobham
Tile is the dominant roofing material across Cobham, from 1930s clay pantile in Stoke d'Abernon to modern Marley Edgemere on the Fairmile estates. Each tile type needs a different cleaning protocol — and getting it wrong damages the surface coating permanently.
Learn moreSlate Roof Cleaning Cobham
Slate is the most delicate common roof material in Cobham. Pressure washing flakes the surface and accelerates delamination. Our slate-specific soft wash uses a milder biocide and longer dwell time to lift moss and lichen without ever touching the tile mechanically.
Learn moreWhy Cobham roofs grow more moss than most
Cobham sits in a damp pocket of Surrey fed by the River Mole and surrounded by mature woodland. Average humidity runs 4–6% higher than nearby Kingston, and the heavy tree canopy slows roof drying after rain. The result? Moss spores germinate within 24 hours of finding a damp, shaded tile — and north-facing pitches across KT11 can develop visible moss inside 18 months.
- Mole valley humidity and shade speed moss growth
- Mature gardens drop tannin-rich leaves onto roofs each autumn
- Period clay pantile (common in Stoke d'Abernon) is especially absorbent
- Concrete tile coatings erode faster in shaded microclimates
- Freeze-thaw cycles fracture tile glaze where moss holds water
Soft wash, never pressure wash
Pressure washing strips the protective surface coating from clay and concrete tiles — and forces water under tile laps, causing leaks. Our manufacturer-approved soft wash system uses garden-hose pressure with a DEFRA-approved biocide that does the work chemically, killing moss to the root without ever touching the tile mechanically.
Soft wash
- ✓ Tile-safe
- ✓ Manufacturer-approved
- ✓ Lasts 4–6 years
- ✓ No leaks
Pressure wash
- ✗ Strips tile coating
- ✗ Voids warranties
- ✗ Moss returns in 18 months
- ✗ Risk of water ingress
Cobham roof cleaning prices for 2026
Real prices from the last 400 jobs we've quoted within the KT11 postcode. Use the calculator for a tailored estimate.
| Property | Soft wash | + Moss removal | Full restoration |
|---|---|---|---|
| Terraced | £295 – £450 | £395 – £595 | £995 – £1,495 |
| Semi-detached | £395 – £595 | £495 – £795 | £1,495 – £2,295 |
| Detached | £595 – £995 | £795 – £1,395 | £2,295 – £3,495 |
| Large detached / chalet | £995 – £1,695 | £1,395 – £2,495 | £3,495 – £5,995 |
Blocked gutters are the #1 cause of damp on Cobham brickwork
We use a 40 ft carbon-fibre gutter vacuum to clear leaves, moss and silt from ground level — no ladders in your flower beds — and send you CCTV before-and-after footage as proof.
Areas we cover from our Cobham base
No travel surcharge within 20 miles of KT11.
From our roof cleaning blog
All articles →Maintenance · 7 min read
How often should you clean your roof in Cobham?
Most Cobham homeowners should plan a full roof clean every 4–6 years, with an annual gutter clear in between. Here's why — and how to spot the signs early.
Education · 8 min read
Does moss damage roof tiles in the UK?
Yes — but probably not in the way you've been told. Here's what moss actually does to UK roof tiles, and when it stops being cosmetic and starts being structural.
Comparison · 7 min read
Soft wash vs pressure washing — what's best for your roof?
Soft wash vs pressure washing — what's best for your roof? — what every Cobham homeowner should know in 2026, written by working roof specialists serving Surrey.
Pricing · 7 min read
How much does roof cleaning cost in Surrey?
How much does roof cleaning cost in Surrey? — what every Cobham homeowner should know in 2026, written by working roof specialists serving Surrey.
Education · 10 min read
Can roof moss cause leaks?
Can roof moss cause leaks? — what every Cobham homeowner should know in 2026, written by working roof specialists serving Surrey.
How-to · 8 min read
The best way to remove moss from roof tiles
The best way to remove moss from roof tiles — what every Cobham homeowner should know in 2026, written by working roof specialists serving Surrey.
Roof cleaning Cobham — frequently asked
How much does roof cleaning cost in Cobham?
A typical Cobham semi-detached costs £395–£595 for a full soft wash; a detached home £595–£995. Heavy moss removal or scaffold add to the cost. See our cost calculator for a tailored estimate.
Is soft wash safe for my tiles?
Yes — soft wash uses no more pressure than a garden hose and is approved by all major UK tile manufacturers including Marley, Redland and Sandtoft.
How long does a roof clean last?
On a typical Cobham roof, 4–6 years before another full clean is needed. Annual biocide top-ups can extend that significantly.
Do you guarantee your work?
Yes. Every full soft wash includes a 12-month no-moss guarantee in writing — we return free of charge if regrowth appears within the period.
Are you insured?
Yes — £5m public liability insurance, full PASMA / IPAF training, and all team members are directly employed (no subcontractors).
Do you cover my postcode?
We cover Cobham (KT11) and the surrounding Surrey postcodes KT10–KT24 plus GU1–GU4 without travel surcharge.
Get your free roof cleaning quote
Fixed-price quote within 24 hours. No call-back chasing — we'll email you.