Roofs in Hillingdon take a beating from British weather. Our soft-wash specialists strip moss, algae and lichen back to clean tiles without high-pressure damage — and treat the surface so it stays clear. We cover Hillingdon and the wider the wider region. Roofs round here see cool, wet shoulder seasons that suit moss colonisation on north-facing roofs, and most of the properties we treat are built with Redland Cambrian, Rosemary plain tiles and modern concrete interlocking — so we tune the soft-wash mix and dwell time to whatever's on your ridge.
Most of the roofs we treat around Hillingdon are built with Redland Cambrian, Rosemary plain tiles and modern concrete interlocking. 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 Hillingdon 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 Hillingdon.
Professional biocide applied at low pressure. It kills moss, algae and lichen at the root and keeps working for months — important given the cool, wet shoulder seasons that suit moss colonisation on north-facing roofs.
Gutters cleared, downpipes flushed, debris bagged and taken away. Included on every Hillingdon 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: cool, wet shoulder seasons that suit moss colonisation on north-facing roofs. 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 Hillingdon, the combination of Redland Cambrian, Rosemary plain tiles and modern concrete interlocking and the wider region'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.
Yes. We clean carefully around PV panels and mounting brackets and avoid running biocide over the cells.
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. We use a professional, fully biodegradable biocide. We mask off planting where needed and flush gutters and downpipes once we're finished.
Yes — we clear gutters, test downpipes and bag the debris on every Hillingdon roof clean. It's included, not an upsell.
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.