Moss & Algae Removal
Complete biological growth clearance from all roof surfaces.
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Transform Your London Roof — Professional Cleaning That Lasts
Moss, algae, and accumulated dirt degrade your roof's appearance and accelerate material deterioration. Our professional cleaning removes biological growth, treats surfaces to prevent rapid re-growth, and restores your roof to excellent condition
- Professional pressure washing and manual cleaning techniques
- Biocide treatment preventing regrowth for 12-18 months
- All debris collected and responsibly disposed from your property
Roof Repair London
4.9 Star Rating
20+ Years Experience
Free Roof Inspection
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Roof Cleaning Projects Across London
Completed cleaning work on residential properties.
Roof Repair – Bermondsey, SE1
Flat Roof Replacement – Croydon, CR0
Slate Roof Restoration – Greenwich, SE10
Commercial Re-Roof – Canary Wharf, E14
Gutter Installation – Chelsea, SW3
Chimney Repointing – Islington, N1
Tile Replacement – Wembley, HA9
Emergency Leak Repair – Hackney, E8
Roof Insulation – Richmond, TW9
Velux Window Install – Hampstead, NW3
Lead Flashing – Westminster, SW1
Storm Damage – Battersea, SW11
Flat Roof Coating – Brixton, SW2
Fascia & Soffits – Fulham, SW6
Roof Survey – Kensington, W8
Moss Removal – Wimbledon, SW19
GRP Fibreglass Roof – Peckham, SE15
EPDM Rubber Roof – Stratford, E15
Zinc Roofing – Shoreditch, EC2
Roof Waterproofing – Clapham, SW4
Why London Property Owners Choose Our Professional Cleaning
Safe techniques, lasting results, proper treatment.
20+ Years Experience
Trusted roofing expertise across London since 2004.
Fully Insured Company
Complete insurance coverage for your peace of mind.
Fast Response
Rapid response times across all London boroughs.
100% Satisfaction
We guarantee quality workmanship on every project.
Quality Materials
Only premium, industry-leading roofing materials used.
Complete Roof Cleaning Services for London Properties
Moss removal, pressure washing, and protective treatment.
Pressure Washing
Low-pressure washing appropriate for your roof type.
Learn MoreBiocide Treatment
Professional biocides preventing regrowth.
Learn MoreTile Colour Restoration
Cleaning returning original tile appearance.
Learn MoreGutter Clearance
Debris removed from gutters during cleaning operations.
Learn MoreMaintenance Programme
Scheduled cleaning to maintain appearance long-term.
Learn MoreRoof Looking Tired? Book Professional Cleaning in London
Our Roof Cleaning Process
Safe cleaning, effective treatment, thorough clearance.
Book Free Inspection
Schedule your free roof inspection online or by phone.
Roof Assessment by Experts
Our certified roofers thoroughly inspect your roof.
Transparent Quote & Repair
Receive a detailed, no-obligation quote and we get to work.
Roof Cleaning London - All Areas Covered
Roof cleaning across all London boroughs.
Camden
Hackney
Islington
Westminster
Southwark
Lambeth
We serve all London boroughs within 24 hours.
Our Google Reviews
Google
James Wilson
Croydon, South London
"KS Roof Master did an outstanding job repairing our roof after storm damage. Fast response, fair pricing, and excellent workmanship."
Sarah Thompson
Islington, North London
"We had a leaking flat roof that other companies couldn't fix. KS Roof Master diagnosed the issue quickly and the repair has been perfect."
David Patel
Greenwich, East London
"Professional from start to finish. The free inspection was thorough and the quote was transparent with no hidden costs."
Roof Cleaning Completed? Maintenance Available to Keep It Clean
Ongoing maintenance to preserve your clean roof.
Annual retreat
Gutter clearance
Condition monitoring
Minor repairs
Roof Cleaning Costs in London
Transparent pricing based on property size and roof type.
| Service | Starting Price |
|---|---|
| Roof Cleaning Survey | FREE |
| Moss & Algae Removal (terraced) | £350-£450 |
| Moss & Algae Removal (detached) | £450-£650 |
| Pressure Washing Only (per m²) | £8-£12 |
| Biocide Treatment (per m²) | £6-£10 |
| Maintenance Programme | Quote on application |
* Final costs depend on property size, roof condition, and biological growth severity. Multi-property discounts available.
Book Your Roof Cleaning Service
We assess your roof and provide transparent cleaning quotes.
- Full roof condition report
- Photo documentation of all findings
- Expert repair recommendations
- Transparent cost estimate
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Roof Cleaning Questions Answered
Guidance on cleaning techniques and maintenance.
London's climate creates ideal conditions for biological growth: damp winters, shade from trees, and limited air circulation on north-facing slopes. Moss holds moisture against tiles, accelerating degradation and blocking gutters. Algae (the black streaking on mineral felt) thrives in similarly damp conditions. Properties near trees, water features, or with north-facing roof slopes are particularly susceptible.
When done correctly by professionals, pressure washing is safe for most roof tiles. We use low-pressure techniques (below 1500 PSI for clay and concrete tiles) and appropriate nozzles to avoid damaging surfaces. We assess your roof type before cleaning and adjust techniques accordingly. Tile cleaning is not suitable for brittle or already-damaged tiles — we identify these during survey.
Professional cleaning removes surface contamination without damaging tiles, coatings, or the underlying membrane. We avoid high-pressure that could dislodge tiles or force water beneath them. On flat roofs, we use gentler washing that protects the waterproofing layer. Our teams are trained to clean without causing damage.
We apply professional biocides — zinc or copper-based treatments that kill existing spores and prevent regrowth for 12-18 months. Application is even and thorough, reaching all roof surfaces. Annual or bi-annual maintenance visits include retreating to maintain protection. The biocide is diluted appropriately for the property and safe for surrounding planting.
Terraced house: 1 day. Semi-detached: 1-2 days. Detached: 2-3 days. Weather conditions affect timing — we avoid cleaning in rain, strong sun, or freezing temperatures. We always complete in a single visit where possible, leaving the property clean and tidy.
No — you do not need to be present during cleaning work. We work externally and do not need access to your property. If you are home, there will be some noise from pressure washing equipment. We always notify neighbours if our equipment will cause significant noise or disruption.
Restore Your Roof's Appearance — Book Professional Cleaning
Transform your property's kerb appeal with professional cleaning.