We provide expert roof waterproofing services throughout Cork, protecting homes and businesses from Ireland’s challenging maritime climate. Our extensive solutions include detailed assessments, high-grade waterproof membrane applications, and targeted repairs for vulnerable spots.
Read real Google and Trustpilot feedback from Keystone Roofing customers across Cork before booking roof waterproofing.
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.
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.
Every project follows a clear inspection, quote, delivery, and quality review path so you know what is happening before work begins.
We don’t guess – we assess, plan, and execute with precision. Every waterproofing project starts with a full roof inspection to identify vulnerabilities, followed by a detailed method statement outlining materials, timelines, and costs. You’ll know exactly what we’re doing and why before we start.
Our waterproofing assessments go beyond spotting obvious leaks. We check drainage systems, flashing points, membrane condition, and structural weak spots that could fail during Cork’s heavy rainfall. Using moisture detection tools and thermal imaging, we identify hidden water penetration before it becomes visible damage. Every finding is documented with photos and measurements, giving you a clear picture of your roof’s condition. This assessment determines which waterproofing system – torch-on felt, liquid rubber, or fibreglass – will deliver the longest-lasting protection for your specific roof type.
Professional waterproofing means proper surface preparation, premium materials, and certified installation. We clean and prime every surface, apply high-performance membranes using manufacturer-specified techniques, and seal all joints, edges, and penetration points to create a fully watertight barrier. Our installers are trained in Firestone, ClassicBond, and liquid waterproofing systems, ensuring your roof meets manufacturer warranty requirements. Every project includes our 20-year guarantee, full liability insurance, and access to our 365 Emergency Assist Service if you ever need urgent support. Serving Cork, Tipperary, and surrounding counties with consistent, professional results since 2009.
Safety comes first on every job site. Our team follows strict safety protocols while protecting your property throughout the waterproofing process.
Don’t wait for the next storm to test your roof’s waterproofing. Call 087 223 4228 now for professional assessment and permanent solutions backed by our 20-year guarantee.
We don't recommend waterproofing during rain as it affects adhesion and proper application. We'll need dry conditions for at least 24-48 hours to guarantee the best results.
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.
Speak with Keystone Roofing about your roof, get a clear assessment, and understand the next step before committing to work.
Can't find what you're looking for? Call us directly on 087 223 4228 - we answer quickly.
Ask About Roof WaterproofingWe find that professionally applied roof waterproofing typically lasts 10-15 years, but we'll inspect your roof annually to guarantee it's performing well. That's why we offer our 20-year unlimited guarantee for peace of mind.
We don't recommend waterproofing during rain as it affects adhesion and proper application. We'll need dry conditions for at least 24-48 hours to guarantee the best results.
No, we'll guarantee your roof's ventilation system remains fully functional. Our waterproofing methods work alongside existing vents, maintaining proper airflow while protecting against water damage. It's a balanced approach we always prioritise.
Yes, we can definitely waterproof specific sections of your roof. We'll assess the problem areas and apply targeted waterproofing solutions, ensuring we protect vulnerable spots while maintaining the integrity of surrounding areas.
Yes, we'll help prevent moss and algae growth through our waterproofing solutions. It creates a protective barrier that reduces moisture retention on your roof, making it harder for these organisms to take hold and grow.
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