London Colney · AL2
Roof cleaning and moss removal in London Colney
Concrete interlocking tiles on the estates are prime moss growers, especially near the river and open land. Soft wash plus biocide keeps them clean; pressure washing removes the tile’s surface and the moss comes back faster.
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.
What should London Colney homeowners know?
The old village around the bridge and the High Street has a few older brick buildings under clay tiles. Most homes are 1950s–1980s estates with concrete interlocking tiles, many with flat-roofed garages and porches. Napsbury Park converted large Victorian hospital buildings into homes, with big slate roofs, decorative ridges and complex valleys, alongside new-build houses.
What goes wrong on London Colney roofs?
Concrete tiles and mortar ridges. Estate roofs from the 1960s–80s are at the age where mortar ridges and verges crack and loose tiles appear after wind.
Flat-roofed garages. Original felt garage roofs blister and leak. Many are past repair and suit EPDM or torch-on replacement.
Complex valleys on converted buildings. The big Victorian roofs at Napsbury have long valleys and lead details that need regular attention.
How do we do roof cleaning and moss removal?
We remove moss by hand, soft wash the roof at low pressure and apply an HSE-registered professional biocide, exactly as its label directs. 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.
Full details on our roof cleaning and moss removal page.
Our process
What you get
- 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
Kills moss, algae and lichen on contact; the dead growth then weathers away over the following weeks and months.
- 04
Gutters and photos
Gutters cleared of debris and the roof photographed: any slipped tiles noted.
Questions
Roof cleaning and moss removal in London Colney: FAQs
Is a dry ridge a good idea on my London Colney estate house?
Often, yes. On concrete-tiled estate roofs a dry ridge and verge system to BS 8612 stops the cycle of re-pointing.
Can you replace my garage roof?
Yes. Most old felt garage roofs are best replaced with EPDM rubber or torch-on felt, with new trims and a proper outlet.
Roof cleaning and moss removal nearby
Free · Photographed · No pressure
Get a quote in London Colney.
Get a quote for your roofing work. Where an inspection is needed, we photograph the roof, explain our findings in plain English and give you the report to keep.