Your chimney is the most exposed part of your roof. It sits up there taking the full force of Cork’s Atlantic winds and rain, 365 days a year. It’s no surprise that when a roof starts leaking, the chimney stack is often the culprit.
At Hallmark Roofing, we specialise in diagnosing and fixing chimney issues before they turn into dangerous structural failures or expensive internal water damage.
For over 15 years, we have seen every type of chimney problem imaginable—from crumbling mortar that falls into the garden, to lead flashing that has peeled away in a storm.
We don’t just patch it up; we restore the structural integrity of your chimney so it’s safe, watertight, and built to last.
Whether you need a simple re-pointing job or a complete chimney demolition and rebuild, our team has the skills and the insurance to do the job safely.
Have you noticed bits of grit or mortar appearing on your patio or driveway? That is a clear sign your chimney is suffering from weathering.
Over time, the wind and rain erode the mortar between the bricks. In Cork, the freeze-thaw cycle (where wet mortar freezes and expands) cracks the joints, leaving the bricks loose and unstable.
We offer a comprehensive chimney re-pointing service. We grind out the old, perishing mortar and replace it with a fresh, durable mix that reinforces the stack.
This doesn’t just stop leaks; it stops your chimney from becoming dangerous. A chimney with loose bricks is a serious hazard during high winds. We secure the stack, ensuring it stands solid for decades to come.
Real people. Real workmanship. Real results.
Lead flashing is your roof’s primary defence against leaks where the chimney meets the tiles; if it splits or lifts, water can track straight into your attic.
We specialise in expert lead work, rejecting cheap "flashband" tape in favour of high-quality code lead that is cut and dressed for a seamless, permanent seal.
For chimneys that are structurally unsound—leaning, cracked, or suffering from spalling bricks—we offer full rebuilds using durable brick or block to match your home’s aesthetic.
Alternatively, if your chimney is no longer in use, we can safely dismantle the stack to roof level and tile over it, eliminating future maintenance headaches entirely.
Look at the chimney from the ground. If you can see gaps between the bricks, or if you find pieces of mortar/cement on the ground near the chimney, it needs attention. Damp patches on the chimney breast inside the house (upstairs bedrooms) are also a classic sign that the external brickwork allows water to soak through.
Yes. Water in the fireplace usually means one of two things: either the rain is falling straight down the pot (which needs a cap), or the lead flashing has failed, allowing water to track down the outside of the flue. We can diagnose and fix both issues.
Yes, but it must be done properly. You can't just knock it down; you have to support the timbers and tile over the gap seamlessly. We frequently perform "chimney reductions" for customers who want to remove the risk of a falling stack and stop potential leaks permanently.
In almost all cases, yes. The chimney is the highest point of the roof, and working safely is our priority. We include the cost of necessary access/scaffolding in our transparent quotes, so there are no nasty surprises later.
We do. If a pot is cracked or missing, we can supply and fit a new one, securing it with fresh mortar "flaunching" (the concrete crown on top of the stack) to ensure it stays put in high winds.
Working on chimneys is dangerous work that requires proper scaffolding and safety equipment. You cannot do this off a ladder. Hallmark Roofing is fully insured and trained for working at heights.
When we work on your home, we protect your roof tiles from falling debris and leave your property spotless.
We serve all areas of Cork, including Mallow, Fermoy, Midleton, Youghal, Cobh, and Carrigaline. When you choose us, you are choosing a local team that understands how to weatherproof a home against the Irish climate.
If you are worried about the condition of your chimney, don’t wait for a brick to fall. Contact Hallmark Roofing for a professional assessment.
We will give you an honest report on the state of your stack and a fair price for any necessary work.
Hallmark Roofing provides trusted, affordable roofing services across Cork City and County. With over 15 years of experience, our fully trained and insured team delivers high-quality roof repairs, new roofs, flat roofing solutions, guttering, chimney work and more.
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