Damp around the chimney breast, crumbling mortar or a leaning stack? Keystone Roofing repairs chimneys across Cork — lead flashing, repointing, rendering, cowls and full stack rebuilds. We make the chimney weather-tight and back the work with our 20-year workmanship guarantee.
Every project follows a clear inspection, quote, delivery, and quality review path so you know what is happening before work begins.
20-Year Work Guarantee 10-Years Home Security Promise 365 Emergency Assist Service Refer a Friend Reward Book a Service Appointment Let’s Fix Your Roof – Fast & Stress-Free It only takes 30 seconds – no pressure, no obligation.
Cracked mortar, leaking flashings, and deteriorating chimney stacks require immediate attention to prevent water damage and structural instability. We specialise in chimney repointing, flashing repairs, cap installation, waterproofing, and full rebuilds. Every job includes transparent pricing, fully insured workmanship, and our 20-year unlimited guarantee.
With 17 years serving Cork homes and businesses, Keystone Roofing Ltd. has earned our reputation through skilled craftsmanship and reliable service. We use premium materials designed to withstand Cork’s rainy weather – from lead flashing to weather-resistant mortar. Our team handles every aspect of chimney repair, from minor repointing to complete stack rebuilds, ensuring your chimney remains structurally sound and watertight for decades.
Before we begin any chimney repair, we conduct a thorough inspection of your chimney’s condition. Our team examines the masonry, flashing, chimney cap, and mortar joints to identify cracks, water damage, or structural issues before they worsen. We use advanced tools for accurate assessment and provide transparent quotes with no hidden costs. Call 087 223 4228 to schedule your free chimney inspection.
Our chimney repair process begins with a detailed assessment using professional-grade tools to determine the full scope of work. We use only high-quality, weather-resistant materials – ensuring every repair stands up to Cork’s wet climate. Our experienced team completes repairs efficiently while minimising disruption to your home. With 17 years in Cork and no hidden fees, you can trust us for reliable chimney repairs. Contact us at 087 223 4228 to schedule your repair.
When you hire Keystone Roofing Ltd., here’s what you can expect:
The chimney is where a huge share of Cork roof leaks start. The lead flashing where the stack meets the roof fails, the mortar joints erode in the wind and rain, the rendering cracks, or the brickwork itself loosens on an exposed coastal stack — and water tracks down inside the chimney breast, showing as damp in the bedroom or on the ceiling below. We inspect the whole stack (often by drone so we can see the top safely), then repair what's needed: renewing lead flashing and soakers, repointing or re-rendering, fitting or replacing cowls and caps, and rebuilding unstable sections or full stacks where the masonry is past saving. Free inspection, written quote, and a 20-year workmanship guarantee.
We start with a practical assessment, explain the condition of the roof, and agree the right scope before work begins. You get updates during the job, daily site care where needed, and a final review before handover.
Timing depends on access, weather, materials, and the scale of the work, but our team keeps the process straightforward from first call to completion.
Read real Google and Trustpilot feedback from Keystone Roofing customers across Cork before booking chimney repairs.
Keystone Roofing Ltd handled a slate roof repair and new lead flashing on our terraced house in Douglas, Cork. They explained the issue clearly, fixed a persistent leak, and left the place tidy. Highly Recomended!
The team did an immaculate job doing a whole new roof. Very easy to communicate, friendly, professional and hard working. Definitely would recommend. Thanks for a job well done!
Keystone Roofing repaired a leak in my roof recently Michael called to inspect the damage and the crew arrived the next morning They did a fantastic job and Im extremely happy with the result A great company to deal with and I would highly recommend them Thanks Michael and crew E Hayes
Work carried out to a high standard, here when they said they would be, worked until darkness somedays. Bigger job than expected, worked up until Christmas Eve to make sure work was completed.
A roof replacement customer praised the clear communication, honest advice, professional team and quality finish from Michael and the crew.
A customer highlighted reliable workmanship, efficient service and careful attention to detail on their Keystone Roofing project.
This customer described the new roof installation as smooth and hassle-free, with a friendly team and a result they were happy to recommend.
An emergency repair customer praised the quick response, cost-effective service and practical help when urgent roof work was needed.
Speak with Keystone Roofing about your roof, get a clear assessment, and understand the next step before committing to work.
Chimney repairs across Cork City and County Cork — lead flashing renewed, eroded mortar repointed, cracked rendering made good, and exposed coastal stacks rebuilt. Every job inspected and backed by our 20-year workmanship guarantee.
Can't find what you're looking for? Call us directly on 087 223 4228 - we answer quickly.
Ask About Chimney RepairsIt depends on the work. Renewing lead flashing around a stack typically runs €650–€1,400; repointing or re-rendering is priced by the size of the stack; a partial or full rebuild costs more and is quoted after inspection. Our inspection and written quote are free, so you get an exact price before any work starts.
Damp on the chimney breast, staining on the ceiling near the stack, or a musty smell in the bedroom are classic signs. The usual culprits are failed lead flashing, eroded mortar joints or cracked rendering — all of which let water track down inside the stack. We inspect the stack, often by drone, to confirm the source before quoting.
Most of the time, yes. If the brickwork is sound, renewing the lead flashing, repointing the joints and re-rendering is enough to make the stack weather-tight for decades. A rebuild is only needed when the masonry itself has loosened or started to lean — common on older, exposed coastal stacks.
Yes. If a chimney is no longer in use we can fit a vented cap or cowl that keeps rain and birds out while still letting the flue breathe, which prevents the damp problems a fully sealed chimney can cause. We advise on the right option during the inspection.
Practical, Cork-specific guides written by Michael Casey and the Keystone Roofing team — covering pricing, diagnosis and what to expect.
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