Leadwork specialists in Portsmouth. Coastal code specification, traditional heritage bossing, chimney flashings, valley lead and bay coverings. Correct lead code for every exposure position.
Leadwork specialists in Portsmouth specify coastal lead codes — code 5 or 6 on harbour and seafront positions. Chimney flashings £400 to £800, heritage bossing on period stock. Salt air demands correct specification. Free survey and written quote — call 0239 307 1334.
Portsmouth's salt air creates a more aggressive environment for lead roofing than virtually anywhere else in Hampshire. Standard code 4 lead — the default specification for sheltered inland positions — has a significantly reduced effective life on exposed Portsmouth properties. For seafront Southsea and harbour-facing Gosport and Portchester, we specify code 5 as the minimum and code 6 on direct frontage. The cost difference between code 4 and code 6 lead on a standard chimney job is approximately £80 to £150. The difference in replacement interval in this environment is 15 to 20 years. Correct specification at the time of installation is the only economically rational choice.
Lead failure in Portsmouth typically presents as interior staining on ceilings or walls rather than visible exterior damage. The failure point — usually a lifted flashing, a failed welted drip or an oxidised valley — may be several metres from the interior stain. Water travels through the roof structure following timber and insulation until it finds a point to drip through. We survey the full lead installation on every job, not just the area immediately above the visible damp patch. A repair that addresses only the stain and not the actual lead failure point is a wasted visit.
Free survey and written quote on all leadwork. No call-out fee. Call 0239 307 1334.
Call 0239 307 1334Victorian and Edwardian Portsmouth has a significant stock of properties with complex lead roofing details — bay roof coverings in Old Portsmouth, lead parapet gutters on Southsea townhouses, lead-lined box gutters on Fratton terrace rear extensions. These details require traditional leadwork skills: roll welding, bossing, drip formation and correct fixings to allow for thermal movement. We carry out heritage leadwork using traditional methods on Portsmouth's period properties and conservation area buildings.
Portsmouth's coastal climate creates greater thermal variation on lead surfaces than inland. South-facing lead on Southsea properties receives direct Solent UV through the summer, raising surface temperatures significantly above air temperature. Coastal winds accelerate the overnight cool-down. The resulting thermal cycling creates metal fatigue at fixed points — particularly at drips and at the heads of soakers where lead is mechanically constrained. We specify correct bossing angles, adequate movement allowance and the right fixings to accommodate this thermal cycling rather than restraining the lead against it.
| Service | Cost Guide | Notes |
|---|---|---|
| Chimney flashing replacement | £400–£800 | Correct code for exposure position |
| Valley lead (per metre) | £180–£280 | Strip, dress and re-lay |
| Bay roof lead covering | £600–£1,400 | Full bay including upstands |
| Dormer flashing | £300–£600 | Full perimeter dressed |
| Parapet lead gutter (per metre) | £200–£350 | Code 6 standard |
| Heritage lead bossing (complex detail) | POA | Priced on survey |
"Lead parapet gutter on our Southsea Edwardian — original lead, 100 years old, finally failed. Portsmouth Roofing stripped it, assessed the timber behind and replaced like-for-like in code 6. Properly done."
"Bay roof lead on our Victorian terrace in North End — they traced the leak back to a lifted welt on the far side of the bay, not where the stain was. Fixed the actual failure not the symptom."
"Chimney flashings on our harbour-facing Portchester property — they specified code 5 without being asked. That told me they knew what they were doing."
Salt air from the Solent and Portsmouth Harbour oxidises lead faster than inland conditions. We specify one lead code heavier on exposed Portsmouth positions — the additional cost is modest against the extended replacement interval.
Interior ceiling or wall staining after rain is the most common sign. The stain location rarely corresponds to the actual lead failure point — we trace the full water path on every survey.
Yes — traditional roll welding, bossing and drip formation on Victorian and Edwardian stock. We are familiar with the requirements for Portsmouth conservation area properties.
Correctly specified and installed lead should last 40 to 55 years on sheltered Portsmouth positions and 30 to 40 years on directly exposed harbour or seafront elevations. Heavier code extends these intervals.
Lead code refers to thickness — code 4 is 1.8mm, code 6 is 2.65mm. Heavier code is more resistant to thermal fatigue and slower to oxidise in salt air. The cost premium is modest; the life difference in coastal Portsmouth is 15 to 20 years.
Yes — we carry out leadwork to heritage specifications on listed and conservation area properties and advise on planning requirements before starting. Call 0239 307 1334.
Both — localised repairs are viable where surrounding lead is sound. Full replacement is specified where lead has reached end of life or oxidation is widespread. Free survey determines the correct scope. Call 0239 307 1334.
No call-out fees. No obligation. Local Portsmouth roofers.
0239 307 1334