4.9 Star Rated with Over 100 Reviews!
  • Mon - Sat 8:00 - 18:00

Flat Roof Repairs Dublin: Specialist Waterproofing & Leak Solutions

Flat roofs are a staple of Dublin architecture, from 1970s kitchen extensions to modern balconies in Dun Laoghaire. However, without the right drainage and high-performance materials, they are the most prone to leaking. At Dublin Roofing Solutions, we specialize in the advanced restoration of flat roofs using systems designed specifically to handle the persistent rain and fluctuating temperatures of the Irish climate.
Request Your Free Quote
  • Get a Fast, Free Roofing Quote in Dublin — No Call-Out Fees.
resurfacing flat roof

Why Flat Roofs Leak in Dublin

The main enemy of a flat roof in Dublin isn't just rain—it's standing water. Most older flat roofs were built without a "fall" (a slight slope), leading to water "pooling" for days after a downpour.

This standing water eventually seeps through microscopic cracks in the felt or around chimney flashings.

We don't just patch the leak; we fix the cause. If your roof is pooling water, we can install tapered insulation during the repair.

This creates a subtle slope that directs water straight into your gutters, ensuring your roof stays dry even after a storm.

  • Modern GRP Fibreglass
  • Torch-On Felt
  • New Roofs & Repairs
  • EPDM Rubber Repairs

Call Us Any Time

Free Quotes Available

Specialist Flat Roofing Materials

We offer three high-performance systems to suit every property and budget:

Torch-On Felt (High-Performance Bitumen)

This is the classic choice for Dublin extensions. We use a 3-layer system with a mineral finish that resists UV rays and stays flexible in freezing temperatures. It’s cost-effective and carries a 15-year life expectancy when installed correctly.

GRP Fibreglass Roofing

A seamless, liquid-applied system that hardens into a single, indestructible sheet. Because it has no seams, it is impossible for water to penetrate. It’s the "Gold Standard" for balconies and roofs with heavy foot traffic.

EPDM Rubber Roofing

An incredibly durable, eco-friendly synthetic rubber. It is applied in one single piece with no joins, and it can last for over 30 years. It’s highly resistant to the salt air found in coastal areas like Howth or Sandymount.
2 roofers on a flat roof in dublin

Solving the "Dublin Climate" Problem

Dublin roofs face a specific set of challenges: salt air corrosion on the coast (Malahide, Howth, Sandymount) and high-wind uplift in the suburbs (Tallaght, Stepaside).

We don't use generic materials. We use stainless steel fixings and breathable membranes that exceed Irish Building Regulations (S.R. 82:2020), ensuring your roof can breathe while keeping the Irish rain out.

We have dedicated teams operating in both North Dublin and South Dublin daily.

Flat Roofing Repair FAQs

If you see "blistering" (bubbles) in the felt, visible cracks, or if the internal ceiling is sagging, the underlying timber deck may be rotting. We use non-invasive moisture tests to check the wood. If the timbers are dry, a repair or "overlay" is usually sufficient.

For emergencies, we provide a temporary "cold-applied" patch that works even on wet surfaces to stop a leak immediately. However, for a permanent, warranted repair using Torch-on or GRP, the surface must be bone-dry. We monitor Met Éireann closely to time our work perfectly.

This is often caused by thermal expansion—the materials expanding and contracting as the temperature changes. It’s common in older GRP roofs that weren't installed with enough expansion joints. We can install "relief joints" to stop the noise and prevent cracking.

For long-term peace of mind, we recommend GRP Fibreglass or EPDM Rubber. They are seamless and handle Dublin’s "freeze-thaw" cycles better than traditional felt, which can become brittle over time.

If your flat roof was punctured by debris during a storm or if a seam was ripped open by high winds, you are likely covered. We provide the professional VAT invoices and photo reports required by Irish insurers to approve your claim.

slate roof installation

Any Questions?

Ask Us

underlay to stop leaks applied on roof

The 2026 Price Guide to Flat Roof Restoration in Dublin

Transparency is at the heart of our service. In the Dublin roofing market, "hidden extras" are a common complaint; at Dublin Roofing Solutions, we provide a fixed-price framework based on the current cost of high-performance materials and specialized labor.

For minor emergency repairs, such as localized leak patching or resealing perished perimeter flashings, our professional intervention starts at €250. This covers a full structural assessment and a targeted fix using industrial-grade cold-applied sealants.

If your property requires a mid-scale refurbishment—for example, a standard 20m² kitchen extension—a full 3-layer High-Performance Torch-on Felt system (SBS modified for flexibility in Irish winters) typically starts at €1,550. This includes the removal and environmentally-sound disposal of the failed membrane.

For homeowners seeking a "once-and-for-all" solution, our Premium GRP Fibreglass systems start from €2,250. This seamless, liquid-applied technology is ideal for balconies and high-exposure roofs, providing a finish that is completely impervious to standing water.

Every full refurbishment we carry out is backed by a 10 to 20-year insurance-backed workmanship guarantee, providing you with a formal paper trail that adds genuine value to your property’s resale potential.

More Roofing Services We Offer In Dublin

We provide a full suite of roofing and property maintenance services across Dublin. If it’s on your roof, we can fix it.

Secure Your Flat Roof Today

Stop the drips before they damage your ceiling. Contact the experts at Dublin Roofing Solutions for a modern, watertight fix.
Dublin Roofing Solutions Logo

Office Address

24A Baggot Street Upper Dublin 4 D04 N528 Co. Dublin

about us

Dublin’s trusted experts for professional roof repairs, flat roofing, and guttering services. We are fully insured, VAT registered, and dedicated to providing transparent, guaranteed workmanship across North and South Dublin. Available 24/7 for emergency storm damage—keeping your home dry and secure, no matter the weather.

Copyright © 2026 Dublin Roofing Solutions. All Rights Reserved.