Lead Flashing Replacement in Seaham
Nine out of ten "chimney leaks" we survey in Seaham are actually failed flashing — the lead has lifted at the mortar joint, or somebody's smeared silicone over the top of it as a stop-gap. Neither survives a wet winter. We strip the old lead, chase a fresh joint into the brickwork and install Code 4 or Code 5 to last thirty years. We're regularly on roofs close to the A19, through Dawdon and Parkside.
- Code 4 or Code 5 lead as the location demands — no thin turn-up stuff
- Chased into a fresh mortar joint, not silicone-glued to the render
- Stepped, soaker and back-gutter details all dressed by hand
- Sand:cement pointing finish, not mastic
- Old lead recycled and credited off the invoice where the weight justifies it
- Patination oil applied to prevent white-carbonate staining on new lead
Where flashing fails on Seaham roofs
Code 4 vs Code 5 vs Code 6
Coverage
Lead flashing replacement in Seaham — FAQs
Can you just point the mortar rather than re-lead?+
Only if the lead itself is sound and it's only the joint that's failed. Nine times out of ten the lead has hardened and cracked too — a fresh point over cracked lead lasts one winter.
How long does new lead flashing last?+
30–50 years for Code 4 in a normal exposure. Longer with patination oil applied at install to stop the initial white staining that runs onto tiles below.
Do you cover the chimney pot and cowl too?+
Yes — if the pot needs re-flaunching or a cowl fitting, we price that separately in the quote so you can choose to include it or not.
Which Seaham postcodes do you cover?+
SR7 — plus Sunderland, Murton, Peterlee.
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