Roof Cost Calculator Ireland

A new roof in Ireland typically costs €9,500–€22,000 in 2026 for an average 3-bed semi (roughly 90–120m² of roof area), while targeted repairs run €180–€1,400 and a full re-roof on a detached house can reach €28,000+. Use our interactive roofing cost calculator for a live estimate, or skip the guessing and call 01 2657795 for a fixed-price quote within 48 hours.

Prices below are indicative 2026 Irish-market ranges based on jobs quoted across Cork, Dublin, Limerick and Galway. Confirm exact rates with your roofer — access, pitch, material choice and county all move the number.

The short version

• A full re-roof on a 3-bed semi (90–120m²) is indicatively €9,500–€16,500 ex VAT in 2026 and takes 4–6 days, while a detached house (140–180m²) runs €16,000–€28,000 over 6–10 days.
• Material rates supplied and fitted in 2026 are €75–€105/m² for concrete tiles, €130–€185/m² for natural slate, €95–€130/m² for fibre-cement slate, €110–€160/m² for clay tiles and €90–€140/m² for metal.
• On an identical 100m² concrete-tile re-roof, indicative prices are €12,500–€16,500 in South Dublin and city, €10,800–€14,200 in Cork City, €10,200–€13,500 in Limerick and €10,500–€14,000 in Galway.
• The SEAI Better Energy Homes attic insulation grant in 2026 is up to €1,700 for a detached home, and adding 300mm of mineral wool to a bare attic costs €900–€1,600 supplied and fitted on a typical semi.
• Straight like-for-like re-roofing is exempt development under the Planning and Development Regulations, with permission only needed for material changes on protected structures, roof profile alterations, or dormers/rooflights beyond exempt thresholds.

Quick Answer: What Does a Roof Cost in Ireland in 2026?

For a fast benchmark before you read on:

VAT at 13.5% applies to most residential roofing work in Ireland. Ask for the ex-VAT and inc-VAT figure on any quote — a reputable roofer will give both.

How Our Roof Cost Calculator Works

We built the Calculator new roof installation tool after quoting more than 400 Irish roofs a year. It takes four inputs and returns a costed range in under a minute:

1. Roof area (m²) — measured on plan, then multiplied by a pitch factor.
2. Pitch — low (15–25°), standard (30–40°) or steep (45°+). Steeper roofs need more scaffolding and slow the crew down.
3. Material — concrete tile, natural slate, fibre-cement slate, clay tile or metal.
4. County — labour and disposal rates differ between Dublin and rural Munster.

The calculator applies live 2026 rates from our supplier accounts (Chadwicks, Tegral, Cassidy Brothers) and adds allowances for felt, battens, ridge, verge, valleys, flashings, scaffolding, skip hire and VAT. It's not a fixed quote — but it's usually within 8–12% of the final priced job.

2026 Pricing by Roof Material

Material is the single biggest cost lever after roof size. Here's what we're paying and passing on in 2026:

Concrete tiles (Tegral Anthracite, Redland Cambrian)

€75–€105 per m² supplied and fitted. The workhorse of Irish housing stock — most estate homes built between 1970 and 2010 use these. Lifespan 40–60 years. Best value on a straight re-roof.

Natural slate (Spanish or Welsh)

€130–€185 per m² supplied and fitted. Spanish slate (SSQ Riverstone, Cupa) dominates the mid-market at around €1.80–€2.40 per slate. Welsh Penrhyn or Ffestiniog is €4–€6 per slate and mostly used on protected structures in Ranelagh, Terenure and Dublin 6. Lifespan 80–120 years.

Fibre-cement slate (Cedral, Marley Eternit)

€95–€130 per m² supplied and fitted. A common compromise on 1990s–2000s homes. Lighter than natural slate, faster to fix, but lifespan is 40–60 years.

Clay tiles

€110–€160 per m² supplied and fitted. Rare on new work in Ireland but common on older Victorian and Edwardian terraces in Dublin. Colour is baked in — they don't fade like concrete.

Metal (standing seam, tile-effect sheet)

€90–€140 per m² supplied and fitted. Growing fast on extensions and modern builds in Galway and West Cork. Excellent on low pitches (down to 10°) where tiles won't perform.

How Pitch and Complexity Change the Price

Two roofs of identical floor area can differ by €4,000+ once pitch, hips, valleys and dormers enter the equation. Rough rules we apply:

• Every 10° of extra pitch adds 3–5% to the labour line (harder footing, more scaffold lifts).
• Each valley adds €350–€600 in lead, membrane and labour.
• Each hip adds €180–€280 for hip iron, ridge and cutting.
• Dormers add €900–€2,200 each depending on cheek finish and lead detail.
• Chimneys add €650–€1,200 per stack for lead flashing, soakers and step-and-cover work.
• Velux windows add €850–€1,400 supplied and fitted per opening.

A plain gable-to-gable semi in Templeogue with no dormers and one chimney will always be cheaper per m² than a cut-roof detached in Sandyford with two dormers, three valleys and a bay.

Regional Price Variation: Dublin vs Cork vs Limerick vs Galway

Location matters more than most homeowners expect. Our 2026 data across 380+ quoted jobs shows the following spread on an identical 100m² concrete-tile re-roof:

If you're in South Dublin, our team at Roofers South Dublin handles everything from Rathfarnham to Stillorgan. Cork homeowners can see recent completed jobs on our project gallery — every price on there is a real invoice.

What's Actually in a Roofing Quote?

A proper Irish roofing quote should itemise these lines. If yours doesn't, ask why:

• Strip and dispose of existing covering (€8–€14/m², includes skip)
• Felt and batten — breathable membrane (Klober Permo, Tyvek Supro) + treated 25×50 batten
• Tiles or slates — supplied with 5% wastage allowance
• Ridge and hip — dry-fix system (Manthorpe, Klober) preferred over sand-and-cement in Irish climate
• Lead flashings — minimum code 4 for chimneys and abutments, code 5 for valleys
• Fascia, soffit, gutter — usually replaced during a re-roof (add €35–€55 per linear metre)
• Scaffolding — €800–€2,400 depending on house and duration
• Skip and disposal — €280–€420 per skip, typically 1–2 skips for a semi
• VAT at 13.5%

Sand-and-cement bedding on ridges is the number-one failure point we see on 2000s-built Irish homes. Insist on dry-fix on any re-roof — it's storm-tested to 150+ km/h and lasts the life of the roof.

SEAI Grants and Roof Insulation: Real Numbers for 2026

If you're re-roofing anyway, it's the right time to upgrade insulation. The SEAI Better Energy Homes scheme in 2026 offers:

• Attic insulation grant: up to €1,700 for a detached home
• External wall or roof insulation (as part of a One Stop Shop deep retrofit): up to €8,000 depending on BER uplift

Adding 300mm of mineral wool to a bare attic costs €900–€1,600 supplied and fitted on a typical semi — the grant covers most of it. Ask your roofer to price this as a bolt-on to the re-roof.

Repairs vs Full Re-Roof: When Does Each Make Sense?

We're often asked whether to patch or replace. Our rule of thumb after 15 years on Irish roofs:

• Under 25 years old, isolated damage: repair. Budget €180–€900.
• 25–40 years old, multiple slipped/broken tiles, some torching failure: partial re-roof of the worst elevation, €3,500–€7,500.
• 40+ years old, nail sickness, sagging battens, active leaks: full re-roof. Anything else is throwing money away.

Signs it's time for a full re-roof: daylight visible through the attic, damp patches on multiple ceilings, sand-like debris in gutters (that's ridge mortar failing), and tiles that lift by hand.

Get a Real Fixed-Price Quote

Calculators are a starting point — they can't see your access, your neighbours' walls, or the state of your rafters. For an accurate figure, we'll survey your roof, drone-photograph the pitches, and issue a fully itemised fixed-price quote within 48 hours. No deposit to quote, no pressure.

Homeowners looking for a roofing quote in Dublin, Cork, Limerick or Galway can contact Recommended Roofing or call 01 2657795 directly. We cover everything from a single slipped tile in Ballinteer to full detached re-roofs in Galway.