Roofing Cost Calculator
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How Much Does a New Roof Cost?
A new roof is one of the largest home improvement expenses, but prices vary enormously depending on the material, roof complexity, and where you live. This guide breaks down every cost component — materials, labour, scaffolding, and extras — so you can budget accurately and compare quotes with confidence.
Roof Replacement Cost by Material
The table below shows total installed costs (materials + labour + scaffolding) for a full re-roof. Prices assume stripping the existing roof to rafters, new breathable membrane, new battens, new tiles, and ridge work.
| Roof Material | Cost per m2 (Installed) | 50 m2 Roof (Terrace) | 70 m2 Roof (Semi) | 100 m2 Roof (Detached) |
|---|---|---|---|---|
| Concrete interlocking tiles | EUR 70-120 | EUR 3,500-6,000 | EUR 5,000-8,400 | EUR 7,000-12,000 |
| Clay interlocking tiles | EUR 100-160 | EUR 5,000-8,000 | EUR 7,000-11,200 | EUR 10,000-16,000 |
| Clay plain tiles | EUR 120-190 | EUR 6,000-9,500 | EUR 8,400-13,300 | EUR 12,000-19,000 |
| Natural slate | EUR 140-220 | EUR 7,000-11,000 | EUR 9,800-15,400 | EUR 14,000-22,000 |
| Fibre cement slate | EUR 90-150 | EUR 4,500-7,500 | EUR 6,300-10,500 | EUR 9,000-15,000 |
| Metal (steel standing seam) | EUR 80-140 | EUR 4,000-7,000 | EUR 5,600-9,800 | EUR 8,000-14,000 |
Concrete interlocking tiles are the most popular choice in Northern Europe because they offer the best balance of cost, durability, and appearance. Natural slate is the premium choice, typically used on period properties or high-end new builds.
Cost Breakdown: What You Are Paying For
A full re-roof involves many cost components. Understanding each one helps you evaluate quotes and spot anything missing.
| Cost Component | Typical Cost | % of Total | Notes |
|---|---|---|---|
| Scaffolding | EUR 600-1,500 | 10-15% | Height and length dependent |
| Stripping old roof | EUR 500-1,200 | 8-12% | Includes skip hire for waste |
| Roofing membrane/felt | EUR 3-6 per m2 | 3-5% | Breathable membrane recommended |
| Battens (25 x 50 mm) | EUR 2-4 per m2 | 2-4% | Treated softwood |
| Tiles/slates | EUR 15-80 per m2 | 25-40% | Biggest variable — depends on material |
| Ridge tiles and mortar/dry fix | EUR 15-30 per linear metre | 3-5% | Dry ridge systems are now standard |
| Lead flashing (chimney, abutments) | EUR 200-600 | 3-5% | Depends on number of flashings |
| Fixings (nails, clips) | EUR 2-5 per m2 | 1-3% | All tiles must be mechanically fixed |
| Labour | EUR 35-80 per m2 | 35-45% | Largest single cost after tiles |
| Skip hire | EUR 200-350 | 2-4% | For old tiles, felt, and battens |
Cost by House Type
These are realistic total costs for a full re-roof using concrete interlocking tiles, which is the most common and cost-effective option.
| House Type | Approx. Roof Area | Total Cost Range | Typical Duration |
|---|---|---|---|
| Mid-terrace (2-bed) | 35-50 m2 | EUR 3,000-5,500 | 2-3 days |
| End-terrace (3-bed) | 45-60 m2 | EUR 3,800-7,000 | 2-4 days |
| Semi-detached (3-bed) | 60-80 m2 | EUR 5,000-9,000 | 3-5 days |
| Detached (3-4 bed) | 80-120 m2 | EUR 7,000-14,000 | 4-7 days |
| Large detached (5+ bed) | 120-180 m2 | EUR 10,000-22,000 | 6-10 days |
| Bungalow | 60-100 m2 | EUR 4,500-10,000 | 3-5 days |
Hipped roofs add 15-25% to the cost compared to gable roofs because of the extra hip tiles, cutting waste, and more complex labour.
Roof Repair vs Full Replacement Costs
Not every roof problem needs a full replacement. Here is what common repairs cost compared to a full re-roof.
| Repair Type | Typical Cost | When It Makes Sense |
|---|---|---|
| Replace 5-10 cracked/slipped tiles | EUR 100-300 | Isolated storm damage, roof otherwise sound |
| Repoint ridge tiles (mortar) | EUR 300-600 | Ridge mortar cracking or ridge tiles lifting |
| Dry ridge system retrofit | EUR 500-1,200 | Replace old mortar ridge with maintenance-free system |
| Replace lead flashing | EUR 200-500 per location | Leaks around chimney or wall abutments |
| Patch repair felt from inside loft | EUR 100-250 | Small felt tears, temporary fix |
| Re-roof one slope only | 50-60% of full cost | One side deteriorated, other side still sound |
| Full re-roof | EUR 5,000-15,000+ | Felt failing, widespread tile damage, battens rotten |
As a rule of thumb: if more than 20-30% of tiles are damaged or the roofing felt underneath is tearing, a full re-roof is more cost-effective than repeated spot repairs.
Material Cost Comparison Per m2
This table shows material costs only (excluding labour and scaffolding) so you can compare the true cost of each roofing material.
| Material | Tiles/Slates per m2 | Material Cost per m2 | Lifespan | Cost per Year |
|---|---|---|---|---|
| Concrete interlocking | 10 | EUR 8-18 | 50 years | EUR 0.16-0.36 |
| Clay interlocking | 12-14 | EUR 20-45 | 80 years | EUR 0.25-0.56 |
| Clay plain | 60 | EUR 35-65 | 80 years | EUR 0.44-0.81 |
| Natural slate | 20 | EUR 40-90 | 100 years | EUR 0.40-0.90 |
| Fibre cement slate | 14 | EUR 15-35 | 35 years | EUR 0.43-1.00 |
| Metal standing seam | N/A (sheets) | EUR 25-55 | 50 years | EUR 0.50-1.10 |
When viewed as cost per year of lifespan, concrete tiles offer the best value. Natural slate has a high upfront cost but its exceptional longevity makes the per-year cost competitive with cheaper materials.
Labour Cost Factors
Roofing labour rates vary based on several factors. Understanding these helps you evaluate why quotes differ.
- Roof complexity — A simple gable roof with no dormers costs less per m2 to tile than a hipped roof with valleys, dormers, and multiple flashings. Complex roofs require more cutting, more lead work, and more time.
- Access — Difficult access (narrow lanes, no space for scaffold tower, overhead cables) increases scaffolding costs and slows work.
- Height — Three-storey properties or tall two-storeys with high eaves require more scaffolding and increase risk, both of which add cost.
- Season — Roofers are busiest from late spring to early autumn. Winter quotes may be 10-15% lower, but work depends on weather windows.
- Region — Urban areas and high cost-of-living regions typically have higher labour rates than rural areas.
Hidden Costs to Budget For
| Item | Cost Range | Notes |
|---|---|---|
| Rotten rafter or purlin repair | EUR 200-800 per timber | Discovered once old roof is stripped |
| Fascia and soffit replacement | EUR 15-30 per linear metre | Often deteriorated under old gutters |
| Gutter replacement | EUR 10-20 per linear metre | Makes sense to do during re-roof while scaffold is up |
| Loft insulation top-up | EUR 5-10 per m2 | May be disturbed during stripping |
| Building regulations inspection | EUR 0-300 | Required for full re-roofs in some jurisdictions |
| Permit/planning fees | EUR 0-500 | Typically not needed for like-for-like replacement |
The most common hidden cost is rotten timber. You cannot see the condition of rafters and battens until the old tiles and felt are removed. Budget a 10% contingency for unexpected timber repairs.
7 Ways to Save Money on a New Roof
- Get at least three quotes — Roofing prices vary significantly between contractors. Always get three written, itemised quotes and compare like for like.
- Choose concrete interlocking tiles — They offer the lowest cost per year of lifespan and are quick to lay (reducing labour costs).
- Schedule in the off-season — October to February is quieter for roofers. You may negotiate 10-15% off.
- Combine work — If you need gutters, fascias, or loft insulation, do it during the re-roof while the scaffold is up. You save on a separate scaffolding hire.
- Keep the roof shape simple — If building new, a gable roof is significantly cheaper than a hipped roof. Avoid unnecessary dormers and valleys.
- Use a dry ridge system — Although it costs slightly more upfront than a mortar ridge, it never needs repointing and reduces long-term maintenance to zero.
- Do not pay everything upfront — Pay a deposit (20-30%), then staged payments, with the final 10% held back for 2-4 weeks to confirm no leaks after the first rain.
These calculations are estimates only. Actual requirements may vary depending on surface conditions, product specifications, and installation methods. Always consult a qualified professional for precise measurements.
Prices updated: 2026-03Frequently Asked Questions
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