Specialist lead flashings, valleys and chimney work. All to Lead Sheet Association standards. Covering SO53.
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Chandler's Ford's large 1930s detacheds in Hiltingbury have some of the most complex leadwork requirements in Hampshire — multiple valley runs, multi-stack chimneys and dormer flashings on substantial properties. Lead valley failure on a Hiltingbury detached with three valley runs requires careful sequencing and correct sizing specification. We carry out complex leadwork on large properties regularly and have the experience for multi-valley, multi-chimney jobs.
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0238 184 9628Mon–Fri 8am–6pm · Sat 8am–2pm · Emergency: 24/7
Request Free QuoteLead flashings in Chandler's Ford fail through three primary mechanisms: thermal movement cracking where flashing is fixed too tightly without movement provision, failed mortar pointing that secures step flashings to the brick course, and in well-drained elevated ground north of Southampton with mature tree canopy, accelerated oxidation of the lead surface. On waterfront and exposed properties, the higher salt concentration in Chandler's Ford accelerates surface deterioration faster than inland equivalents. We identify the failure mode during inspection and address the cause rather than patching the symptom with mastic.
Lead code specification is critical to longevity. Code 4 for step flashings and soakers. Code 5 for back gutters, valleys and bay roofs. Code 6 and above for parapet gutters and flat roof sections. We specify the correct code for each application — using undersized lead on a Chandler's Ford property exposed to well-drained elevated ground north of Southampton with mature tree canopy leads to early failure and repeat calls. All leadwork is carried out to Lead Sheet Association standards.
Mastic sealant applied over failed lead flashings is a temporary patch that lasts 2 to 3 years before failing again. Correctly dressed and fixed lead lasts 50 to 80 years. On any Chandler's Ford property we work on, mastic is not used as a substitute for correct lead work. Where we find previous mastic applications, we strip them out and execute the junction correctly in properly dressed lead.
Lead flashings in Chandler's Ford fail through three primary mechanisms: thermal movement cracking where flashing is fixed too tightly without movement provision, failed mortar pointing that secures step flashings to the brick course, and in well-drained elevated ground north of Southampton with mature tree canopy, accelerated oxidation of the lead surface. On waterfront and exposed properties, the higher salt concentration in Chandler's Ford accelerates surface deterioration faster than inland equivalents. We identify the failure mode during inspection and address the cause rather than patching the symptom with mastic.
Lead code specification is critical to longevity. Code 4 for step flashings and soakers. Code 5 for back gutters, valleys and bay roofs. Code 6 and above for parapet gutters and flat roof sections. We specify the correct code for each application — using undersized lead on a Chandler's Ford property exposed to well-drained elevated ground north of Southampton with mature tree canopy leads to early failure and repeat calls. All leadwork is carried out to Lead Sheet Association standards.
Mastic sealant applied over failed lead flashings is a temporary patch that lasts 2 to 3 years before failing again. Correctly dressed and fixed lead lasts 50 to 80 years. On any Chandler's Ford property we work on, mastic is not used as a substitute for correct lead work. Where we find previous mastic applications, we strip them out and execute the junction correctly in properly dressed lead.
Lead flashings in Chandler's Ford fail through three primary mechanisms: thermal movement cracking where flashing is fixed too tightly without movement provision, failed mortar pointing that secures step flashings to the brick course, and in well-drained elevated ground north of Southampton with mature tree canopy, accelerated oxidation of the lead surface. On waterfront and exposed properties, the higher salt concentration in Chandler's Ford accelerates surface deterioration faster than inland equivalents. We identify the failure mode during inspection and address the cause rather than patching the symptom with mastic.
Lead code specification is critical to longevity. Code 4 for step flashings and soakers. Code 5 for back gutters, valleys and bay roofs. Code 6 and above for parapet gutters and flat roof sections. We specify the correct code for each application — using undersized lead on a Chandler's Ford property exposed to well-drained elevated ground north of Southampton with mature tree canopy leads to early failure and repeat calls. All leadwork is carried out to Lead Sheet Association standards.
Mastic sealant applied over failed lead flashings is a temporary patch that lasts 2 to 3 years before failing again. Correctly dressed and fixed lead lasts 50 to 80 years. On any Chandler's Ford property we work on, mastic is not used as a substitute for correct lead work. Where we find previous mastic applications, we strip them out and execute the junction correctly in properly dressed lead.
When a roof in Chandler’s Ford leaks near a chimney or valley, the lead is usually the cause. Here is how to tell failed leadwork from a covering fault.
When it is not the answer: A sound lead flashing that has simply lifted can often be re-dressed rather than renewed — we will not replace lead that has life left in it Read the full guide.
We inspect the roof and the void from inside the loft, identify the fault and its cause, and check what is developing next on your Chandler’s Ford property.
You get a clear written quote with any access or scaffold costs shown separately — no call-out fee, no obligation, no vague lump sum.
We book a convenient time, with same-day attendance for genuine emergencies across Chandler’s Ford.
We strip the failed lead and dress new code-appropriate lead in correct bay lengths, to Lead Sheet Association detail, so it lasts decades not years.
We clear all debris, show you the finished work, and hand over the workmanship guarantee.
| Job | Typical duration |
|---|---|
| Re-dress lifted flashing | 2–4 hours |
| Chimney flashing renewal | Half to 1 day |
| Lead valley replacement | 1–2 days |
| Bay roof or abutment leadwork | 1–2 days |
Wet or high-wind days pause work at height safely — we build weather margin into every Chandler’s Ford booking.
Leadwork at valleys and chimneys usually needs scaffold for safe access, itemised in the quote. Scaffold is specified for: chimney, valley and abutment leadwork above single-storey - always itemised in your written quote, never a hidden extra, and we arrange it.
Chandler’s Ford is dominated by wooded post-war estates with good access but heavy tree cover; permits run through Eastleigh Borough Council. Pavement scaffold and skip permits go through Eastleigh Borough Council; allow a few working days on streets like Hiltingbury Road, Winchester Road, the wooded closes off Hocombe Road where space is tight.
| Job | Typical range | Notes |
|---|---|---|
| Re-dress lifted flashing | £150–£350 | Per detail |
| Chimney flashing renewal | £350–£750 | Per stack |
| Lead valley replacement | £600–£1,400 | Per valley |
| Bay / abutment leadwork | £500–£1,200 | Scope dependent |
| Code-8 lead per detail | Quoted | Sized to LSA detail |
Worked example: a new dressed-lead valley on a post-war detached at a wooded-close property off Hiltingbury Road in Chandler’s Ford: around £850 including access.
No deposit on standard leadwork; payment on completion. Written itemised quote, VAT included where applicable.
Covering SO53 and surrounding postcodes.
Leadwork is guaranteed for 10 years; correctly sized and dressed lead to LSA detail lasts far longer.
The workmanship is guaranteed for 10 years in writing across Chandler’s Ford, with manufacturer material warranties on top of that.
“The Lead Sheet Association specifies maximum bay lengths for each lead code to prevent thermal-movement fatigue cracking — the single most common cause of failed leadwork on older Southampton roofs.”— Lead Sheet Association (LSA)
Localised, external work — minimal noise and little waste — with no need to be home. You do not need to stay home for external work - we just need power and access agreed in advance.
Leadwork runs year-round; the junction is made watertight before we leave each day. Chandler’s Ford’s mature tree canopy means heavy autumn leaf fall and quick moss regrowth on shaded, north-facing slopes.
Chimney step flashing in Chandler's Ford: £250 to £600. Back gutter: £200 to £450. Lead valley per valley: £400 to £1,000. Free no-obligation quotes on all leadwork.
Mastic is a temporary sealant that fails within a few years. Correctly dressed lead lasts 50 to 80 years. We do not use mastic as a substitute for lead work.
Yes. Lead flashing failure causing active water ingress is treated as an emergency — same-day attendance across Chandler's Ford and all SO53. No call-out fee.
Code 4 for step flashings and soakers. Code 5 for back gutters and valleys. Code 6 for parapet gutters and flat roof work. We specify correctly for each application.
No call-out fee. No obligation. Honest advice from a local roofer.
0238 184 9628