Roof maintenance
Roof cleaning and moss removal
We remove moss by hand, soft wash the roof at low pressure and apply a biocide that keeps killing spores for months. We do not pressure wash tiled or slate roofs. It strips the surface off concrete tiles and brings moss back faster, and on slate it drives water under the laps.
Free photographed survey
Every slope, chimney and gutter photographed.
Report yours to keep
Whether you hire us or not.
Agreed in writing
Scope fixed before any work starts.
One point of contact
Your survey and every follow-up handled by one person, 8am–6pm.
Before and after
Drag the line to see the difference.
BeforeAfterWhat’s included
What does roof cleaning and moss removal cover?
- Hand moss removal
- Soft washing at low pressure
- Biocide treatment
- Gutters cleared afterwards
- Roof condition photographed while we’re up
- Concrete tile, clay tile and slate roofs
Signs to look for
How do you know you need it?
Thick moss cushions
Moss holds water against the tiles and lifts them, letting wind-driven rain underneath.
Gutters full of moss
Moss washes off the roof into gutters and blocks the outlets.
North-facing or shaded slopes
Under trees and on north slopes moss returns fastest. Biocide slows it down.
What most roofers won’t tell you
Why we never pressure wash a roof
Concrete tiles have a thin surface coating. A pressure washer strips it off. The tile is then more porous, holds more water and grows moss back faster than before. You end up paying to make the problem worse.
On slate, high-pressure water is driven up under the laps where the slates overlap, straight into the roof. It can also dislodge slates that are already held by tired nails.
Soft washing at low pressure with a biocide cleans the roof without damaging it, and keeps working after we leave. It takes longer. It is the right way to do it.
Our approach
How do we do it?
- 01
Hand removal
Moss scraped off by hand, working down the roof without walking on fragile tiles.
- 02
Soft wash
Low pressure only, so the tile surface and the laps are untouched.
- 03
Biocide
Applied to kill remaining spores and keep the roof cleaner for longer.
- 04
Gutters and photos
Gutters cleared of debris and the roof photographed: any slipped tiles noted.
Local pages
Roof cleaning and moss removal near you
Every town has different roofs. Pick yours for local housing stock, conservation areas and what typically goes wrong there.
- Roof cleaning and moss removal in St Albans
- Roof cleaning and moss removal in Harpenden
- Roof cleaning and moss removal in Wheathampstead
- Roof cleaning and moss removal in London Colney
- Roof cleaning and moss removal in Radlett
- Roof cleaning and moss removal in Bushey
- Roof cleaning and moss removal in Rickmansworth
- Roof cleaning and moss removal in Chorleywood
- Roof cleaning and moss removal in Northwood
- Roof cleaning and moss removal in Ruislip
- Roof cleaning and moss removal in Hemel Hempstead
- Roof cleaning and moss removal in Berkhamsted
- Roof cleaning and moss removal in Chesham
- Roof cleaning and moss removal in Amersham
- Roof cleaning and moss removal in Little Chalfont
- Roof cleaning and moss removal in Chalfont St Giles
- Roof cleaning and moss removal in Chalfont St Peter
- Roof cleaning and moss removal in Beaconsfield
- Roof cleaning and moss removal in Wendover
- Roof cleaning and moss removal in Bourne End
- Roof cleaning and moss removal in Tring
- Roof cleaning and moss removal in Gerrards Cross
- Roof cleaning and moss removal in Great Missenden
- Roof cleaning and moss removal in Marlow
- Roof cleaning and moss removal in Pinner
- Roof cleaning and moss removal in Stanmore
- Roof cleaning and moss removal in Ickenham
- Roof cleaning and moss removal in Harefield
Questions
Common questions
Do you pressure wash roofs?
No. Pressure washing strips the surface off concrete tiles and forces water under slate laps. We remove moss by hand and soft wash with a biocide.
How long does a roof clean last?
It depends on shade, trees and orientation. The biocide keeps working for months after we leave, which slows regrowth considerably.
Is moss actually damaging my roof?
Thick moss holds moisture, lifts tiles, blocks gutters and can speed frost damage. Light moss is mainly cosmetic.
Related
Free · Photographed · No pressure
Find out what your roof actually needs.
Book a free roof survey. We photograph every slope, chimney and gutter, explain it in plain English, and the report is yours to keep whether you hire us or not.