
Berkhamsted · HP4
Roof cleaning and moss removal in Berkhamsted
Valley-bottom and wooded hillside roofs grow moss steadily. Soft wash and biocide treat it without damaging slate laps or clay tiles.
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 Berkhamsted homeowners know?
The High Street keeps medieval, Georgian and Victorian buildings, many listed. Victorian and Edwardian villas and terraces climb the slopes either side of the valley under Welsh slate and plain clay tiles. Canal-side cottages and converted industrial buildings sit along the Grand Union, and 20th-century houses fill the upper slopes.
What goes wrong on Berkhamsted roofs?
Hillside exposure. Houses on the valley sides catch more wind, which lifts slates on nail-sick roofs.
Victorian slate nail sickness. Many Victorian slate roofs here are at the age where whole slopes start to slip.
Damp in the valley. Low-lying canal-side roofs stay damp, encouraging moss and rot at the eaves.
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 Berkhamsted: FAQs
Do you work on listed buildings in Berkhamsted?
Yes, with like-for-like materials and the right consent. We will tell you if consent is needed.
My hillside house loses slates in wind. Why?
Usually nail sickness made worse by exposure. We check the nails and show you photos.
Roof cleaning and moss removal nearby
Free · Photographed · No pressure
Get a quote in Berkhamsted.
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.
