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What does a new roof cost in Germany? 2026 prices

Updated: 2026-07-12 · Reading time: 11 min · ImmoLens editorial team

The roof is the most important protective shell of your house, and one of the most expensive things to renovate. Leaks, poor insulation or simply age: sooner or later every property needs roof work. In this guide you will learn what costs to expect in 2026, where you can save and which subsidies you are entitled to.

1. When does a roof need to be refurbished?

Not every ageing roof needs a full refurbishment straight away. You should take the following warning signs seriously:

• Leaks: water stains on the ceiling, a damp loft, a smell of mould.
• Weathered tiles: cracks, moss growth, flaking surfaces, loose tiles.
• Sagging roof structure: visible deformation of the roof line, immediate action required!
• Insufficient insulation: high heating costs, draughts, unbearable heat under the roof in summer.
• Age: clay tiles last 50-80 years, concrete roof tiles 30-40 years, bitumen sheeting 15-25 years.

If the roof work is still outstanding on a property you want to buy, it belongs in your price calculation: a renovation backlog reduces the value. How to put a number on it is covered in the guide on valuing a property in Germany.

2. Costs at a glance: what does a roof refurbishment cost?

Costs vary widely depending on scope, material and region. Here are the main items for 2026:

Re-covering the roof

Example: detached house with 120 m² of roof area, clay tiles: 120 × €50 = approx. €6,000 for materials. On top of that come labour costs (scaffolding, removal, laying) of about €80-120/m². Total cost of re-covering: approx. €14,000-20,000.

Roof insulation

Renewing the roof truss

If the timber structure is damaged (moisture, dry rot, insect infestation), it gets more expensive:

• Replacing individual beams: €800-2,500 per beam
• Completely new roof truss: €18,000-35,000 (depending on size and construction)
• Wood preservation treatment: €15-30/m² of roof area

Refurbishing a flat roof

Flat roofs are more prone to leaks and need maintenance more often:

• Renewing bitumen waterproofing: €30-60/m²
• Plastic/EPDM membrane: €40-80/m²
• Full refurbishment including insulation: €120-200/m²
• Green roof (extensive): an additional €40-80/m²

3. Total cost example: detached house

4. Funding: how to bring the costs down

Energy-related roof refurbishments are generously funded in 2026. The most important programmes:

BAFA: Bundesförderung effiziente Gebäude (BEG EM, federal funding for efficient buildings)

• Roof insulation is a single measure (Einzelmaßnahme) and therefore goes through the BAFA grant, not through KfW's Effizienzhaus programmes
• 15% base funding as a grant on the eligible costs
• Plus a 5% iSFP bonus if the measure is part of an individueller Sanierungsfahrplan (iSFP, individual renovation roadmap), so 20% at most
• Cap: eligible costs of max. €30,000 per residential unit, €60,000 with an iSFP. The grant is therefore at most €4,500, or €12,000 with an iSFP, per residential unit
• Eligible: roof insulation that brings the U-value down to ≤ 0.14 W/m²K
• Apply before starting the work, an Energieberater (certified energy consultant) is required

KfW 261: only for a full refurbishment to Effizienzhaus standard

• KfW 261 is not a programme for single measures: it requires the entire building to reach an Effizienzhaus standard after the refurbishment
• If the roof is part of such a full refurbishment: a loan of up to €150,000 per residential unit, with a repayment grant (Tilgungszuschuss) of up to 45% (max. €67,500 per residential unit)
• Insulating only the roof will usually not reach an Effizienzhaus standard, so the BAFA grant remains the route
• On top of the BAFA grant there is the KfW supplementary loan (Ergänzungskredit 358/359) for single measures. That is a low-interest loan, not an additional grant

Tax deduction (§ 35c EStG, German income tax act)

• 20% of the costs deductible over 3 years (max. €40,000 per property)
• An alternative if you do not use BAFA or KfW funding
• The property must be owner-occupied and at least 10 years old

5. Money-saving tips: how to make the roof refurbishment cheaper

1. Combine instead of splitting up: doing the covering and the insulation at the same time saves scaffolding and labour costs (up to 30% cheaper than doing them separately).
2. Pick your season: in winter and autumn roofers often have free capacity, and discounts of up to 10% are possible.
3. Get 3 quotes: price differences of 20-40% between firms are normal.
4. Choose materials cleverly: concrete roof tiles instead of clay tiles save 30%, with a similar look.
5. Consider doing some work yourself: removing the old covering yourself saves €1,500-3,000 (only with proper fall protection!).
6. Have an iSFP drawn up: the individual renovation roadmap brings 5% more funding and shows the optimal order of the measures.

6. Common mistakes in roof refurbishment

Renovation needs can often be estimated from the Exposé before the first viewing. Which digital tools do this is shown in the comparison of German property analysis tools.

7. Frequently asked questions about roof refurbishment (FAQ)

What does a roof replacement cost for a detached house?

Budget €25,000 to €65,000 for covering and insulation together on 120 m² of roof area. The worked example above lands at €47,300, of which €24,000 is the above-rafter insulation alone and €17,300 covers scaffolding, removal and the new covering. It gets expensive at the top end when the roof truss has to go too: a completely new one adds €18,000-35,000. A condition report beforehand costs €300-600 and settles which of the two cases you are in.

What are roofing costs per square metre?

For the covering alone, material prices run from €15 to €150 per m² depending on what you lay: bitumen shingles €15-30, concrete tiles €25-45, clay tiles €35-60, metal €50-90, slate €80-150. Labour for scaffolding, removal and laying adds a further €80-120/m². Insulation is costed separately and ranges from €20-40/m² for blown-in insulation to €150-250/m² for above-rafter insulation.

What does flat roof restoration cost?

A full refurbishment including insulation costs €120-200 per m². If only the waterproofing is due, it is €30-60/m² for new bitumen sheeting and €40-80/m² for a plastic or EPDM membrane. An extensive green roof adds another €40-80/m². Flat roofs leak more often than pitched roofs and need more maintenance, because bitumen sheeting only lasts 15-25 years.

What funding is available for roof insulation in Germany?

Roof insulation counts as a single measure and therefore runs through the BAFA grant: 15% of the eligible costs, or 20% with an individual renovation roadmap (iSFP). Eligible costs are capped at €30,000 per residential unit, or €60,000 with an iSFP, so the grant cannot exceed €4,500 or €12,000 respectively. You need an Energieberater and the application has to go in before the contract is awarded.

Which U-value does a roof refurbishment have to reach?

0.24 W/m²K as soon as you touch more than 10% of the roof area. The thermal protection requirement of the Gebäudeenergiegesetz then applies and insulation stops being optional. That value is not enough for the BAFA grant, though: funding only goes to insulation that reaches 0.14 W/m²K or better. If you are re-covering anyway, aim straight for the funding standard rather than the legal minimum.

Is above-rafter insulation worth it compared with between-rafter insulation?

When the roof is being re-covered anyway, yes; otherwise rarely. At €150-250 per m² it costs roughly three times as much as between-rafter insulation (€50-80/m²), but it delivers the best thermal performance and leaves the loft space untouched. It is applied from the outside, so the covering has to come off. That is exactly why doing covering and insulation in one go is up to 30% cheaper than two separate jobs.

8. Further links

• KfW – programmes for private individuals
• BAFA – Bundesförderung effiziente Gebäude
• Energieeffizienz-Experten – find a consultant
• Gebäudeenergiegesetz (GEG) – full text