Roof cleaning and moss treatment in Paulsgrove using soft-wash biocide — never damaging pressure washing. Paulsgrove's chalk ridge position and exposure means moss grows rapidly on all aspects — particularly on east and north-facing slopes where the wind deposits moisture.
Portsmouth coastal humidity creates a persistently damp microclimate on north and east-facing slopes. Paulsgrove 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 Paulsgrove with concrete interlocking tiles, established moss adds weight to already nail-sick fixings. We combine biocide treatment with nail sickness assessment on estate properties.
Paulsgrove's chalk ridge position and exposure means moss grows rapidly on all aspects — particularly on east and north-facing slopes where the wind deposits moisture. The estate's established moss problem is widespread and requires regular treatment cycles to manage. 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 Paulsgrove'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 |
"Full nail sickness assessment and re-fix on our Paulsgrove estate property — both main slopes. Portsmouth Roofing was honest about the scale of the issue and prioritised the slopes by risk. Stainless fixings throughout."
"Flat roof garage on the Paulsgrove estate — original felt from the estate build in the 60s. GRP installed in a day. First dry garage we've had."
"Storm damage — lost a dozen tiles from the rear slope after high winds. Emergency response within 90 minutes, cleared the roof, made safe and returned next day for full repair."
Yes — Paulsgrove 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. Paulsgrove'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