Lead roofing specialists in Cosham. Cosham's position at the top of Portsea Island reduces direct coastal salt exposure slightly compared to seafront areas. Code 4 is acceptable on sheltered positions; code 5 on exposed elevations. Correct code specified for Cosham's exposure conditions on every job.
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📞 Call Now: 0239 307 1334Salt air in the Portsmouth area reduces lead life compared to inland conditions. We specify the correct lead code for Cosham exposure positions including heavier code on harbour-facing and seafront elevations.
Chimney flashings and back gutters. Valley lead. Bay roof lead coverings. Dormer flashings. Parapet lead. Lead soakers. Heritage lead work on Cosham conservation area properties.
Lead failure in Cosham often presents as interior staining rather than visible exterior damage. We survey the full lead installation not just the area above the visible stain.
Cosham's position at the top of Portsea Island reduces direct coastal salt exposure slightly compared to seafront areas. Code 4 is acceptable on sheltered positions; code 5 on exposed elevations. We specify marine-grade lead code on all Cosham lead work — one code heavier than the standard inland specification on harbour-facing or seafront elevations. The cost difference is modest; the life expectancy difference in salt air is 15 to 20 years.
Chimney flashings and back gutters. Valley lead. Bay roof lead coverings. Dormer flashings. Parapet lead. Lead soakers between slates and tiles. We carry out heritage lead work on Cosham conservation area properties using traditional methods — roll welding, bossing and dressed lead.
Lead failure in Cosham often presents as staining on interior ceilings or walls rather than visible exterior damage — the leak path can travel a long distance from the actual failure point. We survey the full lead installation, not just the area above the stain.
| Service | Cost Guide | Notes |
|---|---|---|
| Chimney flashing replacement | £400–£800 | Correct code for exposure |
| Valley lead (per metre) | £180–£280 | Strip, dress and re-lay |
| Bay roof lead covering | £600–£1,400 | Full bay assessed |
| Dormer flashing | £300–£600 | Full perimeter |
"1930s semi on Drayton Lane — re-roof the second time for this property. Portsmouth Roofing was honest that the tiles were past repair and specified the right modern equivalent. No pressure, good advice."
"Nail sickness on our post-war Cosham property. Both main slopes assessed and re-fixed with stainless. Explained exactly what nail sickness means and what to watch for."
"Flat roof on our 1970s rear extension — GRP in a day. They matched the upstand height to the existing brickwork exactly. Neat finish."
Lead problems show as damp around chimneys, valleys or bay roofs, or lead that has split, lifted or developed a thick grey-green patina at the end of its life.
When it is not the answer: If existing lead is sound and correctly coded, it may just need re-dressing rather than renewal Read the full guide.
Portsdown Hill shelter reduces salt slightly, but 1930s concrete tiles here are shedding surface aggregate at 85–90 years old. Cosham's 1930s semis have generous simple roofs with good access, though mature avenue trees complicate scaffold and skip placement. It is why we specify marine-grade fixings and correct lead codes as standard on Cosham roofs — the coastal environment punishes anything less.
We assess the lead detail, its code and exposure, and specify the correct replacement code.
An itemised quote using code 5 or 6 lead for Portsmouth's coastal positions.
We book the work and arrange access to the detail.
We form and dress the lead correctly with proper bossing, welts and clips for wind resistance.
Site cleared and your workmanship guarantee issued.
| Job | Typical duration |
|---|---|
| Chimney flashing | Half to full day |
| Valley lead (per length) | 1 day |
| Bay roof lead | 1–2 days |
| Box gutter lining | 1–2 days |
Lead work proceeds in most weather, though heavy rain pauses dressing on exposed details.
Lead details at height need scaffold or tower access for safe forming and dressing. Scaffold is specified for: chimney, valley and bay work at height - always itemised in your written quote, never a hidden extra, and we arrange it.
Cosham's 1930s semis have generous simple roofs with good access, though mature avenue trees complicate scaffold and skip placement. Pavement scaffold and skip permits go through Portsmouth City Council; allow a few working days on streets like High Street, Wootton Street, Spur Road where space is tight.
| Job | Typical range | Notes |
|---|---|---|
| Slipped or cracked tiles | £150–£350 | Per visit incl. access |
| Leak diagnosis & repair | £150–£500 | Depends on water travel |
| Chimney flashing | £200–£600 | Code 5–6 lead |
| Valley repair | £400–£900 | Strip and re-lay |
| Nail-sickness re-fix (per slope) | £600–£1,200 | Estate stock |
Worked example: A typical job on a property off High Street in Cosham, including access and waste removal, sits in the middle of the ranges above once surveyed.
No deposit on repairs under £500. Staged payments on re-roofs — nothing up front before materials are on site. All prices include VAT; written itemised quote before any work.
Covering PO6 and surrounding postcodes.
Leadwork carries the 10-year workmanship guarantee; correctly coded lead lasts decades in coastal conditions.
If a fault appears in covered work, we come back and put it right. No quibbling, no re-charge.
Focused work on a single detail, minimal disruption — we protect the area below and clear all offcuts. You do not need to stay home for external work - we just need power and access agreed in advance.
Leadwork runs year-round; we weatherproof any opened detail at the end of each day. Portsdown Hill shelter reduces salt slightly, but 1930s concrete tiles here are shedding surface aggregate at 85–90 years old.
Yes — Cosham 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.
Salt air from the northern approach to Portsea Island corrodes lead faster than inland. We specify one code heavier on exposed positions — the additional cost is modest against the longer replacement interval.
Correctly specified and installed lead should last 60+ years inland. In Cosham's conditions, expect 40–55 years on sheltered positions and 30–40 years on directly exposed elevations with standard code. Heavier code extends these intervals.
Yes — we carry out traditional lead work using bossing and roll welding techniques required for heritage properties. We are familiar with the material requirements for Cosham conservation areas.
No call-out fees. No obligation. Local Portsmouth roofers covering this area.
0239 307 1334