Professional roof cleaning and moss removal in Pewsham, Chippenham. Safe soft-wash methods — no pressure washing. Biocide treatment and inspection report included.
In short: Roof and Moss Cleaning in Pewsham, Chippenham: Roof cleaning runs £400–£800 for a semi including biocide. We cover Pewsham (SN15) with free quotes, no call-out fee and a 10-year guarantee. Moss holds water against the tiles and blocks gutters; manual removal and biocide extends roof life.
concrete tile now 25–35 years old accumulating surface moss. Cleaning before sale is particularly popular on Pewsham given the uniform appearance.
Roof cleaning frequency in Pewsham is driven by local conditions: concrete tile now 25–35 years old accumulating surface moss. Cleaning before sale is particularly popular on Pewsham given the uniform appearance. We use manual removal and soft-wash biocide — no pressure washing, which removes protective coatings from concrete tiles and fractures aged clay tile. A written inspection report is included on every cleaning visit. Pewsham is 2 miles from our base.
Free quotes. No call-out fees. 5 min from Chippenham.
Manual removal from tiles, ridges, hips and valleys. All debris cleared from gutters.
Get a quote →Biodegradable biocide applied after removal. Slows regrowth significantly.
Get a quote →Included on every clean — cleared moss falls into gutters, we remove it.
Get a quote →"UPVC gutter replacement — original joints all failing. New run, correct fall. Good price."
"Chimney ridge repointed — first time in 28 years. Flexible mortar, no cracking since."
"Roof cleaned before putting house on market. Tiles look new. Agent commented positively."
Pewsham is a modern development estate with gentle terrain and no unusual exposure. The defining characteristic is the uniform build phase: virtually every property was built to the same specification in the same window.
Almost entirely 1995–2010 development with concrete interlocking tile and single-storey rear extensions with felt flat roofs throughout. The flat roofs are now 25–35 years old — the most concentrated flat roof maintenance zone in Chippenham.
Felt flat roof failures on rear extensions are the primary call — more GRP flat roof calls come from Pewsham than any other single Chippenham area. UPVC guttering joint failures on original 1990s–2000s stock are the secondary call.
Pewsham's uniform build phase means the maintenance cycle is concentrated: in any given year, hundreds of extensions reach the same threshold simultaneously. GRP replacement at the same cost bracket as re-felting, with a 25-year guarantee, is our standard recommendation for every Pewsham flat roof call.
Every 3–5 years on most Pewsham properties. North-facing slopes under tree cover may need more frequent attention.
No — pressure washing damages tiles. We use manual removal and soft-wash biocide. NFRC-approved method.
Typically 2–4 years depending on orientation, moisture and tree cover. Average conditions in Chippenham: biocide remains active for 3–4 years.
Three-bed semi: £250–£450. Detached: £400–£650. Annual plan from £150/year. Free written quote — call 01249 247 076.
Yes — a clean roof removes a common pre-purchase survey concern at modest cost.
Manual moss removal, biocide application, gutter and downpipe clearing, written inspection report. All in the quoted price.
Pewsham is 2 miles from our Chippenham base — 5 min. No travel surcharge.
No call-out fees. Written quote. Local roofers covering Pewsham and all of Chippenham.
01249 247 076Pewsham is a 1990s–2010s Chippenham estate district of modern houses with concrete-tile main roofs and felt or GRP flat-roof extensions. On this kind of stock, the problems we see most in Pewsham are failing felt flat-roof extensions at end of life, early uPVC guttering joints leaking, and the first signs of tile movement on the older estate stock. Pewsham sits on the south-eastern edge of Chippenham near the Avon, with some riverside humidity.
We assess the moss coverage, tile type and condition, and set up safe access.
Moss is scraped and brushed off by hand — never pressure washed, which damages tiles.
A biocide is applied to kill remaining spores and slow regrowth over the following seasons.
We clear the moss debris from the gutters so it doesn't wash back down.
A written note of anything we spot up there, with no obligation to book it.
| Job | Typical duration |
|---|---|
| Moss removal + biocide (semi) | half to full day |
| Full clean + biocide (detached) | 1–2 days |
| Biocide-only treatment | 2–4 hours |
| Bungalow / single storey | 2–4 hours |
| Gutter clear add-on | 1–2 hours |
Biocide works best applied in dry conditions; we time treatment for a dry spell so it isn't washed off before it acts.
Pewsham is modern estate housing with good access, driveways and space for scaffold and skips. Scaffold and skip permits go through Wiltshire Council, and on the estate roads off Pewsham Way we allow extra time for setup. Access is always itemised in your written quote, never a hidden extra.
The clean and biocide are guaranteed for workmanship; regrowth timescales depend on aspect and canopy, and we're honest that no single treatment is permanent.
Last updated: August 2026
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