Failed lead flashings are one of the most common causes of roof leaks in Ipswich. Chimney soakers, step flashings, valley linings and parapet flashings all deteriorate with age. We carry out professional leadwork across Ipswich and Suffolk — correct code specification, properly dressed.
Lead is the premium material for roof waterproofing junctions — chimney flashings, valley linings, parapet copings, flat roof upstands. When correctly specified and installed, lead outlasts the building. When underspecified, poorly dressed, or patched with sealant rather than replaced, it is one of the most common sources of roof leaks in Ipswich.
The Ipswich stock of Victorian and Edwardian properties carries a significant volume of lead that was installed 50–100+ years ago. Some of this original lead — correctly specified at the time — is still performing well. Other lead on the same properties has been repeatedly patched with bitumen sealant or lap seal over the decades, which is a short-term fix that delays the proper replacement and causes more damage in the process. We assess original lead honestly on survey and advise on whether it can be preserved or needs replacing.
Lead flashing failures on Ipswich properties fall into three categories: underspecified code (code 3 used where code 4 or 5 was needed, so it fatigues faster); incorrect dressing (lead not turned sufficiently into the mortar joint, or laid without expansion joints, so it splits along stress lines); and sealant over lead that should have been replaced (the sealant fails faster than new lead would have and causes more damage in the process).
We use code 4 minimum on all chimney step flashings and soakers, code 5 on back gutters and valley linings. We dress to BS6915 standard, with expansion joints in all runs over 1.5 metres, and we never use sealant as a substitute for properly replaced lead.
Free quote — no call-out fee
📞 01473 807630"Lead valley replacement on our Victorian semi. Code 5 lead, properly dressed with expansion joints. They explained exactly what was wrong with the original (no expansion joints, had split from fatigue) and the fix made total sense. Excellent work."
"Chimney flashing replacement — soakers, step flashings and back gutter. They used the correct code throughout and the dressing was neat. No more leak above the bedroom window. Very professional."
"Lead parapet coping on our period property. They matched the original profile, correct code specified without being asked. The detail at the corners was excellent. Would not hesitate to recommend."
Chimney flashing replacement on a standard property in Ipswich typically costs £300–£700 depending on the number of soakers, step flashings and back gutter. Valley lining replacement costs £400–£900 per valley. Free survey, exact quote.
Code 4 lead for step flashings and soakers on most residential applications. Code 5 for back gutters, larger flat areas and valley linings. We specify correctly for each application — underspecified lead fails faster and causes more damage than the cost saving justifies.
Correctly specified and installed lead flashings last 40–80 years. Failed lead on Ipswich properties is usually the result of underspecified code, incorrect dressing technique, or sealant patching rather than proper replacement. We don't patch — if lead needs replacing, we replace it properly.
Thermal movement. Lead expands and contracts significantly with temperature change. If it was installed without proper joints or fixing clips to allow this movement, it cracks from fatigue — usually along the top edge or at corners. This is a technique failure, not a material failure. Correct installation prevents it.
Yes. For Victorian and Edwardian properties around Christchurch Park and central Ipswich, we dress lead to the original profile wherever possible. For listed buildings we advise on any consent requirements before starting.
Yes. Parapet copings, flat roof upstands and parapet wall flashings are regular work on Ipswich's older commercial and residential buildings. We survey carefully and specify the correct code and jointing for each application.
A soaker is the individual lead piece that sits under each tile at a roof-to-wall junction. When soakers are omitted or fail, water tracks under the tiles directly to the wall and eventually inside. We always fit individual soakers under each tile course — it's the correct method, not the shortcut.
No call-out fees. No obligation. Local Ipswich roofers who turn up when they say they will.
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