Roof cleaning in Gloucester — Severn Vale damp, mild winters, two-year clean.

No. Welsh slate, Cotswold stone and old clay tiles get hand-scrape and biocide only — pressure on those will damage the surface. Modern interlocking concrete tiles, which make up most Gloucester post-war and modern estate stock, can take a controlled pressure-wash where it's the right tool. The biocide is what stops the moss coming back, regardless of method.

Up to two years, often longer, because the biocide we apply keeps killing fresh spores after we've left site. Gloucester sits low in the Severn Vale, so humidity is consistently high and milder winters mean moss never really stops growing — north-facing pitches in shaded plots may green up sooner than south-facing ones. Pressure-washing on its own gives you a clean roof for about a season; the moss is back the following autumn because the spores are still on the tiles. A proper biocide treatment is the difference between scraping the surface and treating the cause.

Yes — Kingsholm, Tuffley, Quedgeley, Hucclecote, Longlevens, Barnwood, Abbeydale, Abbeymead, Brockworth, Churchdown, Coney Hill, Matson, Saintbridge, Tredworth, Robinswood, Podsmead, Linden, Elmbridge, and the city centre. Same pricing across the GL1–GL4 footprint, no extra travel charge. If you're on the edge of the city — Highnam, Hempsted, Tibberton — we cover that too.

For most jobs, no. We work from a ladder or scaffold tower with a long-reach lance, which means no concentrated weight loading on tiles and no boot scuffs on ridges. On steeper or more complex roofs — including some of the Victorian terraces around Kingsholm and Tredworth — we use a roof ladder hooked over the ridge to distribute load safely. We'll tell you in advance which method we're using on your property and why.

Three reasons that matter, in order. Tile and slate life — moss holds moisture against the surface, accelerating freeze-thaw damage and shortening the working life of the roof. In Gloucester's mild damp climate the moss never fully dries out, so the effect compounds faster than in drier counties. Gutters and downpipes — moss sheds and washes into the gutters, blocking them and pushing water down the wall instead of away from the house, which on rendered Edwardian semis or stone-fronted terraces shows up fast as damp staining. Insurance and resale — some insurers query roofs visibly covered in growth, and a clean roof is a quiet but real factor in kerb appeal when selling. The cost of cleaning is a fraction of replacing tiles or repointing ridges.

No roof stays clear forever — spores are always airborne — but treating the cause keeps it clear for years not months: we scrape or soft-wash the moss off, then apply a biocide that carries on killing spores for up to two years. Pressure-washing alone just removes what you can see — it's back next autumn. Biocide (plus, on the right surfaces, a sealant) is the longest-lasting answer.

Spring (March–May) and early autumn are ideal — dry enough for the biocide to bond, and it sets the roof up before the damp months when moss grows fastest. We clean year-round, though; the biocide works whenever it's applied in dry conditions.

Depends on the tile. Modern interlocking concrete tiles can take a controlled low-pressure wash where it's the right tool; Welsh slate, Cotswold stone and old clay should never be pressure-washed — it strips the surface, cracks tiles and forces water underneath. On those we hand-scrape and treat with biocide. We always tell you the method first.