Lead flashing and weathering is what keeps water out at the most vulnerable points on your roof — around chimneys, dormers, skylights, and valley junctions. We cut, dress, and fix lead to the correct Code specification on all types of roofing in North Walsham and across Norfolk.
Image: North Walsham lead work
Lead work is the most skilled part of most roofing jobs. It seals the joints where two roof surfaces meet, or where a roof meets a wall, chimney, or skylight — the points where water will always find a way through if the detail isn't right. Cracked or lifting lead flashing is behind a significant number of the leak investigations we carry out in North Walsham each year.
The work involves cutting lead sheet to the correct Code — typically Code 4 or Code 5 for stepped and cover flashings, and Code 6 for valleys and soakers — then dressing it to the profile of the tiles or slates and pointing or clipping it securely into the mortar joint or brick course above. On chimney stacks we fit both back gutters and front aprons. On dormer cheeks and bay roofs we form dressed soakers between each course of slates or tiles. Every piece needs to be lapped correctly to allow for the natural thermal expansion of lead — get that wrong and it cracks within a few seasons.
Lead work carried out incorrectly, or patched with bitumen or self-adhesive flashing tape as a temporary fix, rarely lasts more than a couple of winters in Norfolk's variable climate. Proper lead work, done correctly, should last 50 years or more.
We survey the affected area before quoting, remove any previous patch repairs, and use only virgin lead sheet manufactured to BS EN 12588. Work is carried out in accordance with the Lead Sheet Association guidelines. Most chimney or single-junction lead jobs take half a day to a full day on site.
Lead flashing replacement around a standard chimney stack in North Walsham typically costs between £250 and £550, depending on the size of the stack and the extent of the work required.
No obligation · We usually respond within 2 hours
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