Flat Roof Repair vs Replacement Guide (2025)

Is your Flat roof leaking or showing signs of age? Here’s how to decide whether to repair or replace your Flat roof in Ireland.

When to Repair a Flat Roof

• Minor leaks or splits in a small area
• Blistering or bubbling but membrane is mostly intact
• Edge detail issues (flashing, upstands)
• Roof is under 15 years old

Repair cost: €200 – €800
Typical repair lifespan: 3–7 years

When to Replace a Flat Roof

• Multiple leaks or widespread damage
• Membrane age over 15–20 years
• Insulation is wet or failing
• Structural issues (deck rot, sagging)
• Frequent repairs needed

Replacement cost: €1,400 – €2,200 (40m²)
New roof lifespan: 15–25 years (Flat), 30–50 years (EPDM/PVC)

Repair vs Replacement: Cost Comparison

Option	Cost (40m²)	Lifespan
Repair	€200–€800	3–7 years
Replace	€1,400–€2,200	15–25 years
Upgrade (EPDM/PVC)	€1,800–€2,800	30–50 years

Common Mistakes to Avoid

• Repeated repairs on a failing roof
• Ignoring insulation and deck condition
• DIY repairs without proper materials

When to Call a Professional

Our team provides:

✅ Free site survey and advice
✅ Transparent quote with all costs
✅ Certified installation for full warranty
✅ Fast, clean, and safe work

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Related Flat Roof Resources

• Flat Roof Materials Guide 2025 – Compare all flat roof options
• Flat Roof Services – Repairs & replacements
• Roof Replacement Costs Ireland – Budgeting for a new roof
• Roof Maintenance Checklist Ireland – Prevent future issues

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Schedule Your Flat Roof Survey Today

Get a free, no-obligation quote for your Flat roof project.

Call now: +353 89 981 9675 or request your Flat roof quote online