Skip to content Fibreglass, or GRP, is the tough, modern way to do a flat roof. Glass matting and resin are laid over a solid deck and cured into one continuous waterproof layer with no joints or seams to leak. It’s strong enough to walk on, lasts for decades, and suits extensions, garages, dormers, and balconies.
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Fibreglass has become one of the most popular flat-roof choices across Ireland today, and it is easy to see exactly why once you know how it works.
Laid down wet and cured solid, a fibreglass roof has no joints or seams at all, so there are far fewer weak places for water to get in.
Hard, durable surface you can walk on, making it ideal for balconies, terraces, and any roof needing regular access. Non-slip finishes available too.
Shrugs off Irish rain and wind, handles standing water without complaint, and needs very little care once it is down on the roof.
We lay new GRP roofs and re-cover tired ones, and we get the bits underneath right first. A fibreglass roof is only as good as the deck it sits on. Each job can cover:
The deck check is where cheap fibreglass jobs cut corners and where ours start, since GRP cracks if boards move. You get a written fixed price, with workmanship cover behind it.
Most roof problems start small and quiet, then get expensive. If you have spotted any of these, it is worth getting them looked at before the next downpour.
We come out, get on the roof, and find exactly what is wrong.
You get a clear, itemised price. No call-out charge, no pressure.
Our own crew carries out the work, tidily and on the agreed date.
We show you what we did and stand over the work.
Fibreglass almost never fails as a material. It fails in the laying, and the same few shortcuts cause nearly every failure.
GRP is rigid, so boards flexing or rotting underneath crack it from below. Deck checks come first, always.
Thin matting and stretched resin leave weak spots you cannot see on day one. They show up two winters later.
Topcoat run straight to the edge without proper GRP trims lets water creep in behind and lift the laminate.
Resin cured in damp air goes cloudy and pinholed, and a rushed fibreglass roof is one that fails early..
A few recent repairs around Dublin. Real jobs, real homes.
Fibreglass costs more than a basic felt roof, but it lasts far longer and needs almost no upkeep, so over the years it tends to be the better value on a roof you want to last. What moves the price is the area.
The state of the deck (replacing rotten boards is the common added cost), the complexity (upstands, trims, rooflights, and balconies all add work), and the access. See our fiberglass cost guide, then book a free survey for a fixed price in writing.
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No call-out charge, no obligation. We’ll tell you honestly whether it needs repairing or replacing.
It’s a flat-roof system made by laying glass matting and liquid resin over a solid deck, which cures into one hard, continuous waterproof layer finished with a colored topcoat. There are no joints to fail, and you can walk on it.
A well-laid GRP roof lasts for decades with very little maintenance, and a recoat down the line extends it further. We’ll give you a realistic lifespan for your roof at the survey.
Yes. It’s a hard, strong surface, which is why it suits balconies and terraces. We can add a non-slip finish where you’ll be walking on it regularly.
It needs a dry spell, because the resin has to cure properly. We plan the job around the weather and won’t rush it on, since a fibreglass roof rushed in the wet is a fibreglass roof that fails.
Book a free, no-obligation inspection and we will tell you honestly what your roof needs.
Request A Quote
Get the contact details you need to connect with our team.
