Moss on a Brighton and Hove roof isn't just cosmetic — it lifts tiles, blocks gutters and shortens the life of the whole roof. We clear it the safe way and treat it so it doesn't grow back. We cover every BN postcode across Brighton and Hove and the wider East Sussex. Roofs round here see salty south-coast air and high humidity year-round, and most of the properties we treat are built with Welsh slate, clay plain tiles and Marley Modern concrete — so we tune the soft-wash mix and dwell time to whatever's on your ridge.
Most of the roofs we treat around Brighton and Hove are built with Welsh slate, clay plain tiles and Marley Modern concrete. Each tile type needs a slightly different approach — concrete tiles need a gentler biocide dwell time than slate, and pantiles need careful scraping in the lap. Here's what's included on a typical Brighton and Hove job:
Every tile cleared by hand from a roof ladder or scaffold tower — no pressure washers, no broken tiles. The right approach for the older roofs you see across Brighton and Hove.
Professional biocide applied at low pressure. It kills moss, algae and lichen at the root and keeps working for months — important given the salty south-coast air and high humidity year-round.
Gutters cleared, downpipes flushed, debris bagged and taken away. Included on every Brighton and Hove roof clean.
Photos of every slope, ridge and valley. You'll see exactly what's on your roof before we quote — no pressure.
We re-bed loose ridge tiles and flag failing pointing while we're up there. Small fixes done on the day; bigger ones quoted separately.
Optional annual top-up applied from the ground. Stretches results from "several years" to "indefinitely" with minimal cost.
The short answer: salty south-coast air and high humidity year-round. Moss spores are airborne almost year-round, and any roof slope that stays damp for long periods will start to colonise — usually on the north-facing pitch first, then under any overhanging trees.
Around Brighton and Hove, the combination of Welsh slate, clay plain tiles and Marley Modern concrete and East Sussex's climate means most roofs need attention every 3-5 years if they've never been treated, and far less often once a biocide programme is in place.
Left untreated, moss holds water against the tile surface, freezes and thaws through winter, lifts the lap, and eventually pushes debris into the gutter line. That's when small problems become roof-replacement problems.
Plus every BN postcode across East Sussex.
After a full scrape, soft-wash and biocide treatment, most roofs in Brighton and Hove stay visibly clear for several years. An optional annual top-up biocide stretches that further.
Most Brighton and Hove jobs are priced from the ground after a free roof inspection — pitch, access and tile type matter far more than property size. You'll get a written, fixed-price quote with no obligation.
Yes. We clean carefully around PV panels and mounting brackets and avoid running biocide over the cells.
Without a biocide treatment, yes — usually within 12-18 months. The biocide is what kills spores at the root and keeps the roof clear long after we leave.
No — all the work is carried out outside. Just tell us about parking, side-gate access, pets and any solar panels before we arrive.