Specialist lead flashings, valleys and chimney work. Lead Sheet Association standards. Covering all PO12 postcodes including Gosport, Lee-on-the-Solent, Alverstoke.
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Leadwork Gosport
Leadwork in Gosport, Hampshire
Gosport is a peninsula town with the Solent on three sides — its housing has the most severe maritime exposure of any area we cover. Victorian naval housing near the waterfront and dockyard area, 1930s to 1950s semis in Alverstoke and Bridgemary, and large post-war estates at Rowner and Bridgemary built in the 1960s and 1970s. Lee-on-the-Solent has a distinct character with 1920s to 1950s coastal housing.
Our leadwork service covers all of PO12 — free surveys, honest assessments and no call-out fees. Call 0238 184 9628 for same-week availability across Gosport.
Lead flashing failures in Gosport concentrate around three specific conditions: thermal movement cracking where flashing has been fixed too tightly, failed mortar pointing that secures step flashings to the brick course, and in coastal-influenced areas like Gosport, accelerated oxidation of the lead surface in salt air. The result in all three cases is the same — a pathway for water to enter the junction between roof and wall. We address the root cause rather than applying mastic over the symptom.
Correct Lead Specification for Gosport
The correct lead code depends on the application. Code 4 for step flashings and soakers at chimney stacks and abutments. Code 5 for back gutter flashings, valley linings and bay roof work. Code 6 and above for parapet gutters and flat roof sections. We specify correctly for each application — using undersized lead in a high-rainfall environment like Gosport is a false economy that leads to early failure.
Lead Maintenance in Gosport's Climate
In Gosport's full Solent exposure — the highest salt air concentration in our coverage area, fastest deterioration rates, exposed lead surfaces benefit from periodic patination oil treatment — particularly on south and west-facing sections. Patination oil maintains the protective oxide layer that develops on lead surfaces, suppressing the white lead carbonate staining that appears when the oxide layer is disrupted. It is not a structural treatment but extends the service life of flashings on exposed positions.
Customer Reviews
What Gosport Homeowners Say
★★★★★
"Lead valley on our Gosport property had failed — water was coming in at the junction. Replaced properly in the correct code. Clean, correct work done by someone who knows what they are doing."
Professor A. · Gosport
★★★★★
"Chimney flashing was mastic over the original lead — a previous roofer's bodge. They removed the mastic, stripped and relaid in proper dressed lead. The difference in quality was obvious."
Sandra M. · Gosport, Hampshire
★★★★★
"Bay roof lead had split at the drip edge. Relaid correctly with new upstand. Clean work, correct specification, sensible price."
Anthony D. · Rowner estate area, Gosport
Lead Flashing Failure in Gosport
Lead flashings in Gosport 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 full Solent exposure — highest salt air concentration in our coverage area, accelerated oxidation of the lead surface. On waterfront and exposed properties, the higher salt concentration in Gosport 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.
Correct Lead Specification for Gosport
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 Gosport property exposed to full Solent exposure — highest salt air concentration in our coverage area leads to early failure and repeat calls. All leadwork is carried out to Lead Sheet Association standards.
Why We Never Use Mastic in Gosport
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 Gosport 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 Gosport — What Fails and Why
Lead flashing failures in Gosport concentrate around three specific conditions: thermal movement cracking where flashing has been fixed too tightly, failed mortar pointing that secures step flashings to the brick course, and in coastal-influenced areas like Gosport, accelerated oxidation of the lead surface in salt air. The result in all three cases is the same — a pathway for water to enter the junction between roof and wall. We address the root cause rather than applying mastic over the symptom.
Correct Lead Specification for Gosport
The correct lead code depends on the application. Code 4 for step flashings and soakers at chimney stacks and abutments. Code 5 for back gutter flashings, valley linings and bay roof work. Code 6 and above for parapet gutters and flat roof sections. We specify correctly for each application — using undersized lead in a high-rainfall environment like Gosport is a false economy that leads to early failure.
Lead Maintenance in Gosport's Climate
In Gosport's full Solent exposure — the highest salt air concentration in our coverage area, fastest deterioration rates, exposed lead surfaces benefit from periodic patination oil treatment — particularly on south and west-facing sections. Patination oil maintains the protective oxide layer that develops on lead surfaces, suppressing the white lead carbonate staining that appears when the oxide layer is disrupted. It is not a structural treatment but extends the service life of flashings on exposed positions.
Honest advice
Do You Actually Need Leadwork in Gosport?
When a roof in Gosport leaks near a chimney or valley, the lead is usually the cause. Here is how to tell failed leadwork from a covering fault.
Cracked, split or slipped lead flashing visible from the ground
Previous flashing crudely patched with mortar or mastic
White carbonate staining running down brickwork below the lead
A leak that appears near a chimney, valley or where roof meets wall
Lead flashing that has crept out of its mortar chase
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.
Correctly dressed lead at the chimney: stepped flashing, apron and back gutter in the right code.The process
From First Call to Sign-Off in Gosport
We survey, free of charge
We come out, go up on the roof and into the loft, and trace the fault to its real cause on your Gosport property before quoting a penny.
You get it in writing
Your quote is itemised and plain — access and scaffold priced as separate lines — so you can see exactly what you are paying for. No obligation.
We book you in
We agree a time that suits you, and we attend the same day for genuine Gosport emergencies.
We do the work
We remove the tired lead and dress in fresh, correctly-coded lead at the right bay lengths, following Lead Sheet Association detail for a lasting junction.
We clear up and sign off
Everything is cleared away, we walk you through the finished job, and you get the written guarantee.
Timescales
Job Durations at a Glance
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
On Gosport jobs we allow for the weather off the coast; any opened-up area is made watertight before we leave each day.
Access
Getting Safely onto Gosport Roofs
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.
Gosport’s dense waterfront terraces have very tight access, so scaffold and skip permits through Gosport Borough Council are the norm. Pavement scaffold and skip permits go through Gosport Borough Council; allow a few working days on streets like Stoke Road, High Street, the terraced streets near the waterfront where space is tight.
Pricing
Leadwork Prices in Gosport
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
What moves the price
Lead code and length of the detail
Scaffold access at valley or chimney
Whether previous mortar bodges must be removed
Complexity — stepped flashing, back gutters
Matching existing patina where visible
Worked example: a new dressed-lead valley on a Victorian terrace at a waterfront terrace off Stoke Road in Gosport: around £850 including access.
No deposit on standard leadwork; payment on completion. Written itemised quote, VAT included where applicable.
Covering PO12, PO13 and surrounding postcodes.
Guarantee
The Guarantee in Plain Terms
Leadwork is guaranteed for 10 years; correctly sized and dressed lead to LSA detail lasts far longer.
Covered: workmanship for 10 years, in writing, transferable if you sell.
On top: manufacturer warranties on materials (terms vary by product).
Not covered: storm or impact damage - that is an insurance matter, and we will document it for your claim.
Wherever you are in Gosport, the work is backed by a written 10-year workmanship guarantee, plus the manufacturer warranties on materials.
“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)
Good to know
Disruption, Mess & Weather
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. Gosport is a low-lying peninsula fully exposed to Solent salt air and wind on almost every side.
FAQ
Frequently Asked Questions
Yes. We cover Gosport and all PO12 postcodes for leadwork. Free no-obligation quotes on all work. Call 0238 184 9628.
Costs vary by property size and scope. We provide free no-obligation quotes across Gosport — call 0238 184 9628 or request a quote online.
No call-out fee for any roofing work in Gosport or PO12.
Yes. 24/7 emergency call-outs across Gosport. We aim for same-day attendance. No call-out fee.
Chimney step flashing replacement in Gosport: £250 to £600. Back gutter: £200 to £450. Lead valley replacement per valley: £400 to £1,000. Dormer flashing: £300 to £700. Free no-obligation quotes on all leadwork.
In some cases yes — where the lead itself is sound but the pointing or fixing has failed, re-securing and repointing is appropriate. Where the lead has split, cracked or is significantly undersized, replacement is the correct approach. We assess and advise during the free inspection.
Correctly installed lead flashing lasts 50 to 80 years. The main factors affecting longevity are the lead code used, the quality of the dressing and the fixing detail. Lead work done correctly the first time does not need revisiting for a generation.
Chimney step flashing replacement in Gosport: £250 to £600. Back gutter: £200 to £450. Lead valley replacement per valley: £400 to £1,000. Dormer flashing: £300 to £700. Free no-obligation quotes on all leadwork.
In some cases yes — where the lead itself is sound but the pointing or fixing has failed, re-securing and repointing is appropriate. Where the lead has split, cracked or is significantly undersized, replacement is the correct approach. We assess and advise during the free inspection.
Correctly installed lead flashing lasts 50 to 80 years. The main factors affecting longevity are the lead code used, the quality of the dressing and the fixing detail. Lead work done correctly the first time does not need revisiting for a generation.
Get In Touch
Free Quote in Gosport
No call-out fee. No obligation. Same-week availability across PO12.
