Hemel Hempstead · HP1, HP2, HP3
Roof cleaning and moss removal in Hemel Hempstead
Concrete tiles on post-war roofs grow heavy moss. A soft wash with biocide cleans them without stripping the surface. Pressure washing old concrete tiles leaves them porous and the moss returns quicker.
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 Hemel Hempstead homeowners know?
Hemel was designated a New Town in 1947. Neighbourhoods like Adeyfield, Bennetts End, Highfield and Grovehill were built in phases with concrete interlocking and plain tiles, shallow pitches, and many flat-roofed garages and blocks. The Old Town High Street keeps Georgian and earlier buildings, and Boxmoor has Victorian terraces and villas under slate.
What goes wrong on Hemel Hempstead roofs?
Mortar ridges and verges. Concrete-tiled New Town roofs are now 50 to 75 years old, and their mortar ridges and verges are cracking.
Shallow pitches. Low-pitch roofs are more prone to wind-driven rain getting under the tiles, especially when the felt is old.
Flat roofs everywhere. Garages, porches and some house types have felt flat roofs at the end of their life.
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 Hemel Hempstead: FAQs
Should I switch to a dry ridge on my Hemel roof?
On concrete-tiled New Town roofs, a dry ridge and verge system to BS 8612 is often the sensible long-term fix.
Can you replace my flat garage roof?
Yes, usually in EPDM rubber or torch-on felt with new trims.
Roof cleaning and moss removal nearby
Free · Photographed · No pressure
Get a quote in Hemel Hempstead.
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.