Co. Donegal · fibreglass roofing
Fibreglass Roofing in Donegal
A GRP or warm flat roof in Donegal runs €3,800 to €8,000+, the national baseline. A typical flat roof job here is €3,000 to €8,500, and GRP is laid at €75 to €140 a m².
GRP roofers covering Letterkenny, Buncrana, Ballybofey and all of Co. Donegal. Tell us the job and one local company rings you with a written price.
Free, no obligation. One local company prices it, not five.
- €3,800 to €8,000+a GRP or warm flat roof in Donegal
- 1.0%of Donegal houses on the BER have a flat main roof
- 78 mmof rain in May, Letterkenny's driest month from April to September
- 1,320 mmof rain a year in Letterkenny
What GRP costs in Donegal
Donegal prices run the national baseline.
| Job | Typical cost | What moves the price |
|---|---|---|
| A GRP or warm flat roof | €3,800 to €8,000+ | The band for the midlands and rural counties |
| A typical flat roof job | €3,000 to €8,500 | Any membrane |
| GRP on a kitchen extension, 30 to 40 m² | €3,800 to €6,500 | The upstand at the house wall, rooflights |
| Single garage, 15 to 25 m² | €1,800 to €5,200 | GRP sits in the upper half of this range |
| GRP over the old roof | €1,800 to €5,000 | Only over a dry, sound deck |
| Repair: a crack, a trim, an outlet | €250 to €900 | Finding it; a dry day to re-laminate |
Roofing work on a house is at 13.5% VAT. The written price comes after a look at the roof.
Rain and GRP in Donegal
Donegal town is the wettest of the three Donegal towns here at 1,525 mm a year, and Buncrana the driest at 1,292 mm. Letterkenny ranks 3rd wettest of the 26 county towns here. Its driest month from April to September is May, at 78 mm, which is when a GRP roofer can most count on a dry day to lay the laminate.
Met Éireann's 1991–2020 averages, within 3 km of each town.
Houses and flat roofs in Donegal
- 1.0%of Donegal houses built before 2011 have a flat main roof: 22nd of 26 counties
- 33%of Donegal homes built before 1981, against 42% nationally
- 37%built in 2001 or later
- 58,997households in a house in Donegal (Census 2022)
That's about 236 of the 23,579 Donegal houses on the BER register with a flat main roof. Far more have a flat roof on an extension, garage, porch or dormer, which the register doesn't count. Older extensions are mostly felt: the roofs that most often go over to GRP when they're replaced.
The largest towns: Letterkenny (22,549), Buncrana (6,971), Ballybofey (5,406), Carndonagh (2,768), Donegal (2,749). We cover every one of them, and the countryside between.
Counties with similar roofs
- Fibreglass roofing Galway1.2% flat main roofs; Galway city 1,289 mm of rain a year.
- Fibreglass roofing Clare1.2% flat main roofs; Ennis 1,288 mm of rain a year.
- Fibreglass roofing Leitrim1.2% flat main roofs; Carrick-on-Shannon 1,127 mm of rain a year.
- Fibreglass roofing Longford0.9% flat main roofs; Longford 1,019 mm of rain a year.
GRP jobs we cover
New GRP roofsStrip the old roof and lay GRP. €75 to €140 a m².More on new grp roofs →
GRP over an existing roofOnly over a dry, sound deck. €1,800 to €5,000.More on grp over an existing roof →
Garage roofsThe commonest roof to go over to GRP. €1,800 to €5,200.More on garage roofs →
Extension roofsWith insulation over a heated room. €3,800 to €6,500 for 30 to 40 m².More on extension roofs →
Dormers and balconiesSmall roofs with lots of edges, and roofs you stand on.More on dormers and balconies →
GRP roof repairCracks, trims, outlets. €250 to €900.More on grp roof repair →Fibreglass roofing in every county
- Carlow1.4% flat main roofs
- Cavan0.8% flat main roofs
- Clare1.2% flat main roofs
- Cork2.5% flat main roofs
- Donegal1.0% flat main roofs
- Dublin3.0% flat main roofs
- Galway1.2% flat main roofs
- Kerry1.8% flat main roofs
- Kildare1.0% flat main roofs
- Kilkenny1.4% flat main roofs
- Laois1.2% flat main roofs
- Leitrim1.2% flat main roofs
- Limerick1.6% flat main roofs
- Longford0.9% flat main roofs
- Louth2.3% flat main roofs
- Mayo2.3% flat main roofs
- Meath1.3% flat main roofs
- Monaghan0.9% flat main roofs
- Offaly1.3% flat main roofs
- Roscommon1.2% flat main roofs
- Sligo1.4% flat main roofs
- Tipperary1.6% flat main roofs
- Waterford2.2% flat main roofs
- Westmeath1.5% flat main roofs
- Wexford2.7% flat main roofs
- Wicklow2.7% flat main roofs
Free quote
Get a price in 4 taps
Tap what you need and leave your number. It goes to one flat roofing company that covers your county, and they ring you back to arrange a look and a written price.
Questions people ask
How much does a fibreglass roof cost in Donegal?
A GRP or warm flat roof in Donegal runs €3,800 to €8,000+. GRP is laid at €75 to €140 a m². The written price depends on the size, the deck and the details.
Do you cover all of Donegal?
Yes. Requests from anywhere in Co. Donegal, including Letterkenny, Buncrana, Ballybofey, go to one flat roofing company that covers your county.
When should a GRP roof go on in Donegal?
In a dry spell. GRP can't be laid in the wet. In Letterkenny, May is the driest month from April to September.
Do I need planning permission to re-roof in Donegal?
Not to re-cover a flat roof the same way. Raising it, changing its shape or work on a protected structure is a question for Donegal County Council.
Get a free price for a GRP roof
One local flat roofing company, a look at the roof, a written price. Free, no obligation.