If your Bromley roof is going green, you're not alone. We're roof moss specialists — soft-wash treatment only, fully insured, and every visit starts with a free roof inspection. We cover every BR postcode across Bromley and the wider South East London. Roofs round here see mild but humid London-fringe air that keeps shaded roofs damp, and most of the properties we treat are built with Edwardian clay plain tiles, Marley Modern and Redland concrete tiles — so we tune the soft-wash mix and dwell time to whatever's on your ridge.
Most of the roofs we treat around Bromley are built with Edwardian clay plain tiles, Marley Modern and Redland concrete tiles. 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 Bromley 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 Bromley.
Professional biocide applied at low pressure. It kills moss, algae and lichen at the root and keeps working for months — important given the mild but humid London-fringe air that keeps shaded roofs damp.
Gutters cleared, downpipes flushed, debris bagged and taken away. Included on every Bromley 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: mild but humid London-fringe air that keeps shaded roofs damp. 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 Bromley, the combination of Edwardian clay plain tiles, Marley Modern and Redland concrete tiles and South East London'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 BR postcode across South East London.
Yes. We clean carefully around PV panels and mounting brackets and avoid running biocide over the cells.
Yes — we clear gutters, test downpipes and bag the debris on every Bromley roof clean. It's included, not an upsell.
No — all the work is carried out outside. Just tell us about parking, side-gate access, pets and any solar panels before we arrive.
Yes, as long as it's dry and safe to access. Autumn and winter are actually peak season for treating moss — the biocide goes on before spring growth kicks off.
Never. High-pressure water strips the protective coating off concrete tiles and forces water under slate. We hand-scrape and soft-wash only — that's the only safe way to clean a roof.