Flat Roofing Cork, Dublin, Limerick & Galway — EPDM, GRP & Single-Ply Specialists
Recommended Roofing has installed and repaired flat roofing systems across Ireland since 2010 — over 2,000 projects completed, from house extension flat roofs in Ballincollig to commercial flat roofing in Dooradoyle and Galway City. As a Firestone Approved Installer, we fit EPDM rubber, GRP fibreglass, and single-ply PVC membranes that outperform Cork’s 1,200mm annual rainfall. Quotes within 48 hours. Emergency flat roof repair response under 4 hours, seven days a week.
Finding reliable flat roofing near you in Cork, Limerick, Galway or Dublin means finding a contractor with the right materials knowledge, proper installation accreditation, and a proven track record in Ireland’s wet Atlantic climate. Recommended Roofing brings all three. We are Ireland’s comprehensive roofing specialists, with a dedicated flat roofing division that covers domestic extensions, garage roofs, commercial units, balconies, and flat-roofed additions from one end of the province to the other.
Our flat roofing repair and flat roof waterproofing services are specified for Irish conditions — not generic European standards. Ireland’s wind-driven rainfall demands membranes with zero tolerance for penetration, and our specification process accounts for exposure, drainage fall, substrate condition, and thermal performance to Irish Building Regulations Part L. Whether you need an emergency roofing service for an active flat roof leak, rubber roofing installation for a new extension, felt roofing replacement, or a large-scale single ply membrane renewal across a commercial unit in 2026, our emergency and scheduled roofing teams are standing by across all four counties.
Every flat roofing project begins with a free assessment by a qualified residential or commercial roofer — not a salesperson. You’ll receive a written specification and fixed-price quotation within 48 hours. Our 10-year written workmanship guarantee is backed by €6.5 million public liability insurance through Zurich and our Construction Industry Register Ireland (CIRI) registration, so the protection we promise is protection you can verify independently.
Flat Roofing Prices in Cork, Dublin, Limerick & Galway — 2026 Guide
How much does flat roofing cost in Ireland? Flat roof repair near you from €350. New domestic flat roof (extension, up to 20m²) from €1,800 to €6,000 depending on system. Commercial flat roofing from €8,000. All prices include labour, materials, and waste removal. Fixed-price written quotations provided within 48 hours.
| Flat Roofing Service | Price Range (2026) | Typical Duration | Guarantee |
|---|---|---|---|
| Flat Roof Repair — Leak / Blister / Split Seam | €350 – €900 | Same day / 1 day | 2-year repair guarantee |
| Flat Roof Replacement — Torch-on Felt (up to 20m²) | €1,500 – €4,000 | 1–2 days | 10-year workmanship |
| EPDM Rubber Flat Roof — Domestic Extension (up to 20m²) | €2,500 – €5,500 | 1–2 days | 10-year + 20-yr Firestone |
| GRP Fibreglass Flat Roof — Extension / Garage / Balcony | €2,800 – €6,000 | 1–2 days | 10-year workmanship |
| Single-Ply PVC / TPO Membrane (Sarnafil) — Domestic | €3,000 – €7,500 | 2–3 days | 10-year + 30-yr Sika |
| Commercial Flat Roofing — Full Replacement (100m²+) | €8,000 – €25,000 | 3–7 days | 10-year written guarantee |
| Flat Roof Overlay — New Membrane Over Existing Deck | €1,800 – €5,000 | 1–2 days | 10-year workmanship |
Prices correct February 2026. VAT at 13.5% included. Final quote depends on area, access, substrate condition, and material specification.
What's Included in Every Flat Roofing Installation
Our flat roofing service is a complete, managed installation — not a materials-only supply. Here is what every Recommended Roofing flat roofing project includes as standard:
Free roof condition survey and substrate assessment
Full removal and disposal of existing failed membrane
Deck inspection and repair of any rotted or damaged boarding
Correct drainage falls formed (minimum 1:80 gradient)
Vapour control layer installation where required
Primary waterproofing membrane (EPDM / GRP / PVC — as specified)
Lead or aluminium upstands at abutments, walls, and parapets
Drip edge trim and fascia detailing
Outlet installation or inspection and clearance
All waste removed and site left clean
10-year written workmanship guarantee certificate
VAT invoice and insurance documentation on completion
Flat Roofing Systems We Install — EPDM, GRP, Single-Ply & Felt
Not all flat roofing systems are equal, and the right choice depends on your roof area, intended use, budget, and building type. Recommended Roofing installs all four major flat roofing systems used in Irish construction, and we will specify the most appropriate one for your project rather than default to the system with the highest margin. Here is how each compares in 2026:
EPDM Rubber Flat Roofing — Our Most Recommended Domestic System
Firestone EPDM (Ethylene Propylene Diene Monomer) is our first recommendation for the majority of domestic flat roofing near Cork, Dublin, Limerick and Galway. A Firestone EPDM flat roof membrane comes in a single sheet up to 15 metres wide, meaning most house extension flat roofs have zero seams — the primary failure point in any waterproofing system. The rubber membrane flexes without cracking across our wide temperature range (−45°C to +150°C), resists UV degradation, and carries Firestone’s own 20-year material guarantee when installed by a Firestone Approved Installer like Recommended Roofing. We have installed Firestone EPDM flat roofing systems on extensions in Douglas, Ballincollig, Dooradoyle, Castletroy, Salthill, Galway City, Tallaght and dozens of other Ireland locations since 2010.
GRP Fibreglass Flat Roofing — Best for Trafficable Surfaces
Glass Reinforced Plastic (GRP fibreglass) flat roofing produces a rigid, seamless surface that is fully trafficable — ideal for walkable balconies, roof terraces, and domestic extensions where foot traffic is expected. The resin is catalysed on-site in layers, producing a monolithic waterproof shell that bonds to the substrate. GRP is particularly popular in Galway and West Cork where properties have exposed balconies subject to wind-driven spray. It cannot be installed in temperatures below 5°C, so scheduling matters in Ireland winters. We use premium-grade chopped strand mat and ISO/NPG resins, finished with a UV-stabilised topcoat for long-term colour retention.
Single-Ply PVC / TPO Membrane — Commercial Grade Performance
For commercial flat roofing across Cork, Limerick, Dublin and Galway, our preferred single-ply membrane is Sika Sarnafil — a reinforced thermoplastic PVC membrane heat-welded at all seams to create a continuous, tested joint. The weld strength exceeds the membrane itself, making it genuinely fail-safe when installed correctly. Sarnafil carries a 30-year material guarantee from Sika and is used extensively on commercial buildings, retail units, schools, and industrial facilities. If your commercial flat roof is near me in Cork or Limerick, this is likely what competitors are using too — but installation quality varies enormously. Ours is installed by trained single-ply operatives.
Torch-on Felt Flat Roofing — Cost-Effective with Proper Specification
Modified bitumen (torch-on felt) flat roofing remains a viable, cost-effective option when properly specified with a quality cap sheet, correct drainage, and adequate falls. We use Icopal Capvent and Icopal Vedaproofing systems — not commodity felt — which provide SBS-modified performance with a 10–15 year serviceable life. Torch-on felt is well suited to low-budget projects or phased improvements where a full membrane upgrade is planned in the medium term. We do not install torch-on felt as a temporary fix; every Icopal installation is treated as a permanent solution.
Materials We Use — Specified for Ireland's Climate
Recommended Roofing sources flat roofing materials from manufacturer-approved supply chains only. We do not use grey-market membranes or off-specification adhesives. Here are the primary products in our flat roofing specification portfolio:
Firestone RubberCover EPDM
Single-piece rubber membrane, seamless up to 15m wide. 20-year material guarantee. UV-stable black finish. Ideal for all domestic flat roofs in Cork, Dublin, Limerick and Galway.
Sika Sarnafil PVC Single-Ply
Reinforced thermoplastic membrane, heat-welded seams. 30-year Sika material guarantee. Our commercial flat roofing standard across across Ireland.
GRP Fibreglass Resin System
ISO/NPG resin with chopped strand mat. Rigid, seamless, fully trafficable. UV-stabilised topcoat. Best for balconies and walkable flat roofs. 25-year expected lifespan.
Icopal Modified Bitumen
SBS-modified torch-on felt with Icopal Capvent cap sheet. 10–15 year lifespan. Used where budget is primary constraint. All installations are fully torched and finished.
Our Flat Roofing Installation Process — Step by Step
A flat roofing installation completed to a standard that lasts 20+ years cannot be rushed. Here is exactly how Recommended Roofing approaches every flat roofing project from first contact to final handover:
Free Site Survey & Condition Assessment
A qualified roofer visits your property — not a salesperson. We inspect the existing flat roof, measure the area precisely, assess the deck condition for soft spots, rot, or structural compromise, check drainage outlets, and assess falls. This determines whether repair or replacement is the right recommendation. No charge, no obligation.
Written Specification & Fixed-Price Quotation
Within 48 hours of the survey, you receive a written quotation specifying the exact membrane system, all ancillary materials, drainage details, and a fixed price. No day-rate estimates. No materials-only quotes. You know exactly what you are paying before work begins.
Substrate Preparation & Deck Repair
Existing failed membranes are stripped back to the structural deck. Any damaged or rotted decking boards are replaced with moisture-resistant plywood to the correct specification. Drainage falls are checked and adjusted where needed — a minimum 1:80 gradient is required by Irish Building Regulations for effective water dispersal. A vapour control layer is installed where warm deck or inverted roof configuration is specified.
Membrane Installation & Detailing
The primary waterproofing membrane is installed per the manufacturer’s technical data sheet — the step most often skipped by non-accredited contractors. For Firestone EPDM, this means correct adhesive coverage, proper edge trim installation, and factory-bonded flashing rolls at all upstands and abutments. For GRP, it means correct catalyst ratios, adequate mat saturation, and a fully gelled basecoat before topcoat application. All drip edges, outlet flashings, and lead upstands are dressed properly.
Final Inspection, Water Test & Handover
Every completed flat roof is inspected by a senior roofer and where practicable, a ponding or hose test is carried out to verify watertightness before handover. You receive your 10-year written workmanship guarantee certificate, our insurance documentation, and a VAT invoice meeting Revenue requirements. We also register the installation with the membrane manufacturer where the product guarantee requires it.
Common Flat Roof Problems We Fix Near You in Ireland
Flat roofs developed a reputation for leaking — largely because older felt systems were under-specified for Irish rainfall. Modern EPDM, GRP, and single-ply flat roofing systems have transformed the picture, but existing flat roofs near you in Cork, Dublin, Limerick and Galway still present predictable failure modes. Here are the most common issues our teams address:
Ponding Water & Inadequate Falls:
Flat roofs require a minimum 1:80 drainage gradient. When a roof is installed level or sags over time, water ponds and accelerates membrane degradation. We reform falls using tapered insulation or deck packing before re-waterproofing.
Membrane Blistering
Blisters form when moisture trapped in the deck converts to vapour and pushes the membrane upward. Addressing blistering requires removing the blister, drying the substrate thoroughly, and patching with compatible membrane — not simply cutting blisters and filling them.
Failed Seams & Lap Joints
The most common failure point in torch-on felt and older single-ply flat roofs. Seams delaminate over repeated thermal cycling. Repair involves cutting back to sound material and re-welding or re-bonding — not lap taping over the failed joint.
Upstand & Flashing Failures
Where the flat roof meets a vertical wall or parapet, the upstand flashing — lead or aluminium — detaches or cracks. This is a leading cause of internal water ingress and ceiling damage in Ireland homes. All upstand repairs include clearing debris from the abutment and resealing the full joint.
Outlet Blockage & Overflow
A blocked flat roof outlet causes rapid ponding and overloads the membrane at the perimeter. We clear, inspect, and resize outlets where necessary, and can install overflow weirs or secondary drainage points.
UV Degradation of Felt Cap Sheet
Traditional felt flat roofs in Ireland show UV oxidation, cracking, and granule loss after 10–12 years. At this stage, a like-for-like replacement is less cost-effective than upgrading to a 20-year EPDM or GRP system.
Flat Roofing Case Studies — Recent Completed Projects in Cork & Limerick
Why Choose Recommended Roofing for Flat Roofing Near You in Ireland
There is no shortage of flat roofing contractors near you in Cork, Dublin, Limerick and Galway. Here is what distinguishes Recommended Roofing and why the county council offices, bank branches, and school buildings we work on trust us with their flat roofing:
Firestone Approved Installer Status
This accreditation is not self-awarded. Firestone requires training completion, installation quality assessment, and ongoing monitoring. It activates the 20-year Firestone EPDM product guarantee — which a non-approved contractor cannot register for you.
CIRI Registration — Independently Verifiable
Our Construction Industry Register Ireland registration is publicly searchable. CIRI requires demonstrated competence, insurance compliance, and commitment to Irish building regulations. It protects you against unregistered traders.
€6.5M Insurance — Not Just a Certificate
Our combined public and employer’s liability cover is held with Zurich. We provide current certificates on request and for any project over €10,000 as standard. You can verify our cover independently.
15 Years Trading in Ireland Since 2010
A contractor who has traded in Ireland for 15+ years can be held accountable for their guarantees. Many flat roofing warranties are meaningless if the company no longer exists when you need to claim.
Fixed-Price Written Quotations Only
No day-rate estimates. No “it depends” pricing. Every Recommended Roofing flat roofing project is priced at a fixed, written figure with a clear scope. What we quote is what you pay.
Heritage & Institutional Track Record
We have completed flat roofing and general roofing work for Bank of Ireland branch properties across Ireland, Clare County Council buildings, and Midleton College — clients who apply rigorous contractor selection criteria and expect zero defects.
- Bank of Ireland — Branch properties across Ireland
- Clare County Council — Public buildings & facilities
- Midleton College — Heritage roofing & flat roofing
- 2,000+ Homeowners — Across Cork, Dublin, Limerick & Galway
Flat Roofing Near Me — Service Areas & Response Times
Recommended Roofing provides flat roofing near you across the full Ireland region. Our county-based teams ensure local knowledge, shorter travel times, and genuine familiarity with planning context and building styles in each area. Here is our full coverage map:
Cork Flat Roofing
Cork City, Douglas, Ballincollig, Mahon, Carrigaline, Midleton, Mallow, Fermoy, Youghal, Macroom, Bantry, Skibbereen, Clonakilty
Limerick Flat Roofing
Limerick City, Dooradoyle, Castletroy, Raheen, Annacotty, Ennis Road, Newcastle West, Abbeyfeale, Rathkeale
Galway Flat Roofing
Galway City, Salthill, Loughrea, Tuam, Oranmore, Athenry, Caherciveen, Ballinasloe, Waterville
Dublin Flat Roofing
Dublin City, Tallaght, Dún Laoghaire, Carrick-on-Suir, Templeogue, Rathfarnham, Sandyford
If you need a flat roofing contractor near you and your town is not listed above, call your county number. We cover a wider area than listed here, and in most cases can reach you within the same response window. Flat roofing near me searches in Ireland will most often return our teams as the nearest Firestone Approved Installer.
Flat Roofing FAQs — Answered by Our Roofers Ireland
Flat roofing costs in Ireland typically range from €350 for a straightforward leak repair to €25,000 for large commercial flat roof installations. A standard domestic flat roof replacement on an extension (up to 20m²) costs €1,800–€3,200 for torch-on felt, €2,500–€5,500 for Firestone EPDM rubber, and €2,800–€6,000 for GRP fibreglass. We provide free written quotations within 48 hours so you know exactly what you're paying before any work begins.
For Ireland's high rainfall (Cork averages 1,200mm annually), Firestone EPDM rubber membrane is our top recommendation for most domestic flat roofs. It's a single-piece membrane with zero seams in standard sizes, eliminating the most common failure point. Sika Sarnafil PVC single-ply is our choice for commercial applications due to its exceptional UV stability and 30+ year certified lifespan. GRP fibreglass suits extensions where a hard, trafficable surface is needed.
A properly installed Firestone EPDM flat roof carries a 20-year manufacturer guarantee and typically performs for 40–50 years in Irish conditions. GRP fibreglass systems last 25–30 years. Traditional torch-on felt lasts 10–15 years. Single-ply PVC (Sarnafil) carries a 30-year material guarantee. Recommended Roofing backs all installations with a 10-year written workmanship guarantee.
Many flat roofs can be repaired. If the membrane has localised damage with a sound substrate beneath, targeted repair costs €350–€900 and extends roof life by 5–10 years. However, widespread membrane degradation, structural deck rot, or a system beyond its serviceable life means replacement is the cost-effective long-term answer. We always provide an honest written assessment — we will tell you which is appropriate and why.
Yes — Recommended Roofing provides flat roofing services across all four Ireland counties. Our Cork teams cover Douglas, Ballincollig, Mahon, Midleton, Mallow and the wider county. Limerick teams serve Dooradoyle, Castletroy, Raheen and surrounding areas. Galway operations cover Galway City, Salthill, Loughrea and the Iveragh Peninsula. Dublin service extends across the city, Tallaght, and surrounding communities. Same-day emergency response is available county-wide.
Yes. Recommended Roofing holds Firestone Approved Installer status for EPDM flat roofing systems. This accreditation requires completing Firestone's technical training programme and meeting their quality standards. It allows us to register the 20-year Firestone product guarantee in the homeowner's name — something a non-approved contractor cannot do.
We maintain emergency flat roofing response across Cork, Dublin, Limerick and Galway with a target arrival time of under 4 hours. For active leaks causing interior damage, we dispatch immediately with waterproofing materials to stop the ingress while a full repair or replacement is scheduled. Emergency response is available 24/7 — call your county number and you'll be connected to an on-call roofer.
All installations carry a 10-year written workmanship guarantee alongside the material manufacturer's guarantee (20 years for Firestone EPDM, 30 years for Sika Sarnafil). Our workmanship guarantee is backed by €6.5 million public liability insurance and CIRI registration — independently verifiable. VAT No. IE04393055LH | Company Registration 783729.
What Our Irish Homeowners Say About Recommended Roofing
Related Roofing Services — Complete Roofing Solutions Across Ireland
Flat roofing is one part of our comprehensive roofing service across Cork, Dublin, Limerick and Galway. Explore related roofing services from Recommended Roofing:
Commercial Roofing
Industrial & retail roof specialists →
Emergency Roof Repairs
24/7 response across Ireland →
Gutter Repairs & Installation
Full guttering service →
Residential Roofing
Pitched slate & tile roofing →
New Roof Installation
Complete new build roofing →
Slate Roof Restoration
Period property specialists →
Get Your Free Quote Today
Whether you need emergency repairs, complete roof installation, period property restoration, or expert advice, Recommended Roofing provides free, no-obligation quotations throughout Cork, Dublin, Limerick and Galway.
Cork
021 2040925
Cork Office
Unit 3D North Point House
North Point Business Park
New Mallow Road, Cork, T23 AT2P
Monday-Friday 8:00am-6:00pm
Saturday 9:00am-2:00pm
South Dublin
01 2657795
South Dublin
Serving South Dublin & surrounding areas
Monday-Friday 8:00am-6:00pm
Saturday 9:00am-2:00pm