Roof cleaning and moss treatment in Fratton using soft-wash biocide — never damaging pressure washing. Fratton's densely built-up layout creates shaded north-facing slopes that receive limited sun even in summer.
Portsmouth coastal humidity creates a persistently damp microclimate on north and east-facing slopes. Fratton properties see faster moss establishment and need more frequent treatment cycles than equivalent inland properties.
Low-pressure biocide application to all tile surfaces. Treatment of ridge, hip and valley lines. Gutter clearing included. We never use pressure washing which damages tile surfaces and forces water under laps.
On post-war estate properties in Fratton with concrete interlocking tiles, established moss adds weight to already nail-sick fixings. We combine biocide treatment with nail sickness assessment on estate properties.
Fratton's densely built-up layout creates shaded north-facing slopes that receive limited sun even in summer. Combined with island humidity, moss establishes rapidly on rear slopes — annual treatment is recommended for properties with established tree canopy nearby. We carry out soft-wash biocide application — never high-pressure washing, which damages tile surfaces and forces water under laps. The biocide kills existing moss and lichen at root level and provides residual protection of 2–4 years depending on exposure.
Low-pressure biocide application to all tile surfaces. Treatment of ridge, hip and valley lines where moss establishes fastest. Gutter clearing included to remove debris loosened during treatment. Return inspection at 6 months — moss dies progressively over weeks after treatment, not immediately.
Untreated moss growth in Fratton's humid coastal conditions eventually reaches a weight and water-retention level that affects tile seating and increases roof load. Beyond a certain point, moss removal should be combined with a nail sickness assessment — the weight and movement of established moss accelerates nail fatigue on already-marginal fixings.
| Service | Cost Guide | Notes |
|---|---|---|
| Biocide soft-wash treatment (2-bed) | £200–£350 | Including gutter clear |
| Biocide soft-wash treatment (3-bed semi) | £300–£500 | Including gutter clear |
| Biocide treatment (4-bed detached) | £450–£750 | Full roof and gutters |
| Combined treatment + nail sickness survey | POA | Recommended for older stock |
"Party wall chimney stack repair in Fratton — our half had failed but they assessed the full stack. Coordinated with next door and sorted both sides properly. Really professional approach."
"Clay tile slippage on our Fratton Victorian — sourced matching reclaimed tiles and re-fixed the slope properly. You can't tell which tiles are original."
"Ridge repointing across our full Fratton terrace. Tight scaffold on a narrow street — they managed it without blocking the road for long. Good communication throughout."
Yes — Fratton is within our core service area. Call 0239 307 1334 for availability and free quote.
Yes — free, no-obligation survey and written quote before any work starts. No call-out fee.
Yes. NFRC registration, full public liability insurance and 10-year written guarantee on all work.
Most jobs are surveyed within 48 hours and started within 1–2 weeks. Emergency work is available same day — call 0239 307 1334.
No — pressure washing damages tile surfaces and forces water under laps. We use soft-wash low-pressure biocide application only.
Every 3–5 years depending on exposure and aspect. Fratton's coastal humidity means moss re-establishes faster than inland — south and west facing roofs may need treatment every 3 years.
No — our soft-wash biocide is safe on all tile types including clay, concrete interlocking and Welsh slate.
No call-out fees. No obligation. Local Portsmouth roofers covering this area.
0239 307 1334