Skip to content Water beside a chimney, in a valley, or where an extension meets a wall nearly always points to failed flashing. We find the failed section and fix it properly. New lead cut and fitted right, priced in writing before any work starts, and nothing added after you agree. No guesswork, no patching over. Family-run Dublin roofers since 1969.
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Lead flashing seals every join where tiles or slates meet a chimney, wall, valley, or skylight, and it causes a large share of roof leaks. It is also the fault most often misread as something bigger
Brown rings on the ceiling or chimney breast, worst after windy wet nights. Nine times out of ten the stack is fine and the lead has lifted or split.
Lead pulling away from the wall, wavy lines where it should sit flat, or cracks along the fold. White chalky powder means years left bare and unprotected.
Black or grey sealant smeared along a flashing line is a repair that has already failed once. Mastic goes brittle in a couple of Irish winters and shrinks away.
Nearly every job we do is in lead. It dresses tight to uneven surfaces and stays put through Irish weather. From chimneys to valleys, every flashing detail below gets cut and fitted by our own crew.
Lead code is the trade word for sheet thickness. We match it to the detail, never guess it. Lighter lead suits a chimney side. Heavier lead takes the run-off in a valley. Wrong code splits within a few years.
Most roof problems start small and quiet, then get expensive. If you have spotted any of these, it is worth getting them looked at before the next downpour.
We come out, get on the roof, and find exactly what is wrong.
You get a clear, itemised price. No call-out charge, no pressure.
Our own crew carries out the work, tidily and on the agreed date.
We show you what we did and stand over the work.
Every flashing repair follows same four steps, from a survey at the junction to guarantee paperwork at sign off, with the price fixed in writing first.
We get up to the junction and look properly, guess from the ceiling stain. You get told which flashing failed.
One price in writing covering the lead, labour, and access. If scaffold is needed it is in the quote upfront.
Old lead and failed mortar out. New lead cut, dressed, and lapped so it can move, then wedged and re-pointed.
We soak the detail and watch before leaving, hand you the guarantee paperwork with finished work photos.
A few recent repairs around Dublin. Real jobs, real homes.
Two Irish sources published in 2026 put full chimney flashing replacement at roughly €400 to €900 in Dublin. That covers the apron, stepped sides, and back gutter with lead and labour. Scaffold adds roughly €300 to €800. Those are market figures, not our quote. Your roof gets a written fixed price after the survey, and our Roof Cost Calculator gives a quick indication before you book.
Access. The biggest factor. Scaffold for a two-storey stack costs real money. A low abutment off a roof ladder does not.
How much lead. A metre of apron is a different job to a full chimney.
The code of lead. Heavier sheet costs more and takes longer to dress.
The mortar. Soft joints have to be raked and made good before the lead goes back.
What is underneath. Water sitting behind a failed flashing can rot the timber. We find that at survey, not halfway through.
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No call-out charge, no obligation. We’ll tell you honestly whether it needs repairing or replacing.
A flashing leak usually shows as a damp patch on the ceiling right beside the chimney breast, and it gets worse in wind-driven rain rather than steady drizzle. A failing stack tends to show damp on the stack itself and crumbling mortar you can see from the ground. The only way to be sure is to look at the junction close up, which is what the free survey is for.
It depends on the lead itself. If the lead is sound and only the mortar holding the top edge has failed, we rake out the joint and re-wedge and re-point it. If the lead is split, fatigued, too light for the detail or has been patched with sealant, replacing it is the honest answer, because a repair will fail again within a season or two.
Three causes account for most repeat failures. The lead was too light for the detail, so it fatigued and split. The sheet was cut too long in one piece, so it had nowhere to expand and it cracked along the fold. Or someone sealed over the problem with mastic instead of cutting the lead back into the mortar joint.
Often, yes. On a two-storey house with a stack near the ridge, safe access means scaffold or a tower, and that is a real part of the price. On a single-storey extension or a low abutment we can usually work off a roof ladder. We tell you which applies before you commit, so the quote does not change on the day.
Book a free, no-obligation inspection and we will tell you honestly what your roof needs.
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Get the contact details you need to connect with our team.
