A O Leary Roofing & Renovation specialises in high-quality flat roof installation, repair, waterproofing, refurbishment and emergency roof services across County Cork, County Kerry and Cork City. As trusted roofers in Cork & Kerry, our team understands the challenges that local weather brings — from relentless rain and coastal winds to rapid temperature changes that can weaken older flat roofing systems.
With more than 20 years of experience, both homeowners and businesses rely on our expertise for durable, long-lasting flat roofing solutions designed specifically for Irish conditions. We carry out detailed inspections, offer honest assessments and ensure every project is completed to the highest standard of safety, waterproofing and structural performance.
We install and repair all leading flat roof systems, including Flexitec, Fibreglass (GRP), EPDM rubber roofing, Torch-On Felt, Lava 20, and advanced liquid-applied flat roofing systems that deliver exceptional, seamless protection. Whether you need flat roof repair, a full flat roof replacement, a new flat roof for an extension, or urgent help with a leak, A O Leary Roofing & Renovation guarantees reliable workmanship, fast response times and professional service from start to finish.
High-Performance Flat Roofs Built for Cork & Kerry Weather
From the coastal winds of Youghal to the heavy rainfall in Killarney and Tralee, properties in Cork and Kerry face some of the toughest weather in Ireland. Our flat roofing systems are chosen for strength, waterproofing performance and long-term durability.
Our services include:
- Flat roof repair & leak repair
- Flat roof installation & replacement
- Flat roof waterproofing & weatherproofing
- Flat roof refurbishment & overlay systems
- Commercial & residential flat roof repair
- Emergency flat roof repair (24/7)
- Flat roof cleaning, inspection & condition reports
Every project starts with a thorough flat roof inspection to evaluate the structure, drainage, membrane condition and overall performance.
Flat Roofing Systems We Install Across Cork & Kerry
Our team provides professional installation, repair and refurbishment of all major flat roofing systems used throughout Cork, Kerry and Cork City. Every system we install is chosen for its durability, waterproofing strength, and long-term performance in Irish coastal and inland weather conditions. Whether you’re upgrading an old flat roof, repairing storm damage, or building a new extension, we provide a solution tailored to your property.
Flexitec Flat Roofing Systems
Flexitec is a reinforced, hybrid liquid system known for its exceptional flexibility and crack resistance. It is ideal for both new flat roofs and overlay installations, especially on older roofs that need strengthening without full removal. Flexitec creates a seamless, highly waterproof membrane that handles movement and temperature changes extremely well.
We offer:
- Flexitec flat roof installation
- Flexitec flat roof overlays
- Flexitec flat roof repair for cracks, ageing surfaces and water ingress
This system is a great choice for properties exposed to heavy rain and variable temperatures.
Fibreglass (GRP) Flat Roofing
Fibreglass (GRP) flat roofing provides a smooth, joint-free and maintenance-free finish that is perfect for extensions, garage roofs, porches, balconies, and commercial spaces. GRP roofs are known for their strength, impact resistance and clean appearance.
We provide:
- Fibreglass (GRP) flat roof installation
- Fibreglass flat roof repair for cracks, delamination, blistering and leaks
GRP’s seamless build makes it one of the most durable options for long-term weather protection.
EPDM Flat Roofing
EPDM rubber roofing is a flexible, UV-resistant and highly durable system widely used on residential, industrial and commercial properties. It withstands thermal expansion, making it ideal for Ireland’s changing climate.
Our EPDM services include:
- EPDM flat roof installation
- EPDM flat roof repair
- EPDM overlays
- Full EPDM roof refurbishment
EPDM is particularly effective for garages, extensions, warehouses and large flat roof surfaces.
Lava 20 & Liquid Flat Roofing Systems
Liquid-applied roofing systems such as Lava 20 create a fully waterproof, highly elastic membrane that bonds to almost any surface. They are excellent for roofs with complex shapes, awkward junctions, or areas prone to leaks.
We provide:
- Full Lava 20 liquid flat roof installation
- Lava 20 roof repair for cracking, ageing membranes and water ingress
- Liquid roofing for repairs, overlays and refurbishment
These systems deliver premium protection and are suitable for both residential and commercial roofing.
Torch-On Felt Roofing
Torch-on felt is a cost-effective and reliable system still widely used for garage roofs, extensions, sheds, and small commercial units. Modern multi-layer felt systems offer improved durability, heat resistance and waterproofing.
We provide:
- Torch-on felt roof installation
- Torch-on felt roof repair
- Full felt roof replacement
This is a solid and budget-friendly choice for smaller flat roof areas.
Flat Roof Extensions
Flat roofs are extremely popular for modern home extensions and renovation projects. We install flat roofing systems for:
- Kitchen extensions
- Attic conversions
- Garage conversions
- Sunrooms and porches
- Commercial expansions
- Renovation and upgrade works
Every flat roof extension we install is fully insulated, watertight and engineered for long-term performance in Irish climate conditions.
Industrial & Commercial Flat Roofing
Businesses across Cork and Kerry rely on our team for high-performance commercial flat roofing solutions built to withstand heavy use, machine vibration, foot traffic and wide-span structures.
Our commercial services include:
- Commercial flat roof repair
- Liquid roofing systems for industrial buildings
- Overlay systems for ageing commercial roofs
- Full commercial flat roof installation
- Roof refurbishment, maintenance and leak prevention
We work with warehouses, retail units, offices, workshops, factories and all types of industrial premises to ensure safe, reliable and durable roofing performance.
Flat Roof Repairs & Emergency Leak Response
Flat roofs can suffer damage from storms, ponding water, ageing membranes, UV exposure, poor installation or blocked drainage. Our team provides:
- Flat roof leak repair
- Emergency flat roof repair
- Residential flat roof repair
- Commercial flat roof repair
- GRP, EPDM, felt & liquid system repair
- Flat roof overlay systems
- Long-term waterproofing solutions
If major damage is found, we also provide:
Insulation, Weatherproofing & Flat Roof Maintenance
A well-maintained flat roof performs better, lasts longer and protects against expensive future damage. We provide:
- Roof insulation upgrades
- Flat roof weatherproofing
- Liquid membrane waterproofing
- Vapour control and moisture protection
- Roof ventilation improvements
- Drainage upgrades & fall correction
- Flat roof cleaning & maintenance
We also recommend integrating your roof with a proper drainage system using our PVC fascia, soffit & guttering services.
Additional Roofing Services by A O Leary Roofing & Renovation
Our team also handles all surrounding roofing work, ensuring your full roofing system performs as one cohesive structure:
- Roof Repairs
- Re-Roofing & Roof Replacement
- New Roof Installations
- Chimney Repairs & Flashing
- PVC Fascia, Soffit & Guttering
- Extensions & Renovations
Why Homeowners & Businesses Trust A O Leary Roofing & Renovation
A O Leary Roofing & Renovation is widely recognised across Cork and Kerry for dependable roofing work, honest assessments and long-lasting results. With decades of experience in flat roofing, we provide expert installations, repairs and maintenance using the most advanced systems available.
What Makes Us the Trusted Choice
- Local Expertise
We understand the weather challenges in Cork and Kerry and install roofs designed to handle rain, coastal winds and temperature changes. - Skilled & Fully Insured Team
Every project is completed by trained roofing professionals who specialise in flat roofing systems. - Transparent Pricing & Detailed Inspections
We provide honest advice, clear options and straightforward pricing. - Fast Response Times
Our team responds quickly to leaks, emergencies and storm damage. - High-Quality Materials
Flexitec, GRP, EPDM and Lava 20 are chosen for their strength, flexibility and waterproofing. - Complete Roofing Solutions
From flat roofs to chimneys, re-roofing, fascia, soffits, guttering and home extensions — we handle everything under one roof.
Homeowners, landlords, developers and businesses trust A O Leary Roofing & Renovation for roofing work that stands the test of time.
Areas We Serve Across Cork & Kerry
As a trusted roofing company serving homeowners and businesses throughout Cork and Kerry, A O Leary Roofing & Renovation provides fast response times, reliable workmanship and expert flat roofing solutions across a wide local service area. Our team has long-standing experience working on residential, commercial and industrial properties throughout the region — from coastal towns exposed to harsh Atlantic weather to busy city suburbs and rural communities.
We proudly serve the following areas:
County Kerry
Killarney, Tralee, Listowel, Dingle, Kenmare, Cahersiveen, Killorglin, Castleisland, Sneem, Waterville, Ballybunion
County Cork
Mallow, Midleton, Cobh, Youghal, Bantry, Clonakilty, Bandon, Skibbereen, Macroom, Kinsale, Fermoy, Charleville, Kanturk
Cork City
Douglas, Ballincollig, Blackrock, Bishopstown, Mahon, Wilton, Mayfield, Togher, The Lough, Turners Cross, Glanmire
Get a Free Flat Roof Inspection
If you’re looking for dependable roofers in Cork & Kerry who specialise in flat roof installation, repair, extensions, overlays and emergency leak response, A O Leary Roofing & Renovation is here to help. Our team provides fast, accurate inspections and clear professional advice so you know exactly what your roof needs—whether it’s a minor repair, a full replacement, or a long-term waterproofing solution.
We work across all areas of County Cork, County Kerry and Cork City, offering reliable service, skilled workmanship and flat roofing systems built to last in Irish weather conditions.
Trust A O Leary Roofing & Renovation for durable results, honest assessments and high-quality roofing work delivered on time.
Contact us today for a free flat roof inspection or quote.
Flat Roofing FAQs
Do you repair all types of flat roofs?
Yes. We repair every major flat roofing system used in Cork and Kerry, including felt, fibreglass (GRP), EPDM rubber, Flexitec, torch-on felt, and all liquid-applied roofing systems. Whether your roof has cracks, blistering, ponding water or age-related wear, our specialists can diagnose the issue and provide a reliable, long-term repair solution.
Do you offer emergency flat roof repair?
Yes — A O Leary Roofing & Renovation provides 24/7 emergency flat roof repair across Cork, Cork City and all of County Kerry. We respond quickly to storm damage, sudden leaks, internal water ingress, and any situation where immediate action is needed to protect your home or business.
What is the best flat roofing system?
The best system depends on the building, the roof structure and exposure to weather. However, Flexitec, GRP, and Lava 20 are widely regarded as the most durable systems in Irish conditions due to their strong waterproofing, flexibility, seamless finish and long lifespan. These options are ideal for both residential and commercial flat roofs in Cork and Kerry.
Do you install flat roofs on extensions?
Absolutely. We regularly install flat roofs for home extensions, garage conversions, attic conversions, renovations, and commercial units. All extension roofs are fully insulated, sealed, and designed to integrate perfectly with your existing structure for long-term waterproof performance.
Do you offer inspections and maintenance?
Yes — we provide flat roof inspections, condition reports, cleaning, maintenance, and full weatherproofing upgrades. Regular maintenance helps extend the lifespan of your flat roof, prevents costly repairs, and ensures proper drainage and membrane performance throughout the year.
How long do flat roofs typically last in Cork and Kerry?
A high-quality flat roof installed with systems such as Flexitec, GRP, EPDM or Lava 20 can last 20–30+ years, depending on maintenance, drainage and local exposure. Areas with stronger coastal winds—like parts of County Cork—may require periodic inspections for maximum lifespan.
Can you replace an old flat roof without removing the existing material?
Yes. In many cases, we can apply flat roof overlay systems over the existing surface if the structure is sound. This is a cost-effective way to refurbish a flat roof while improving waterproofing and insulation.
Do you offer commercial flat roof services?
Yes — we provide commercial flat roof repair, installation, refurbishment and liquid roofing systems for warehouses, retail units, office buildings and industrial facilities across Cork and Kerry. Our systems are designed for high durability, long-term waterproofing and minimal disruption to business operations.
What causes most flat roof leaks?
The most common causes include poor drainage, blocked gutters, membrane splits, ageing felt, standing water, and weather-related damage. Homes and businesses in wet climates like County Kerry benefit greatly from regular maintenance and condition checks.
How soon can you inspect my flat roof?
We aim to provide same-day or next-day inspections, especially for active leaks or storm damage. Emergency cases across Cork, Cork City and Kerry are prioritised to prevent further internal damage.