Energy Renovation Grants — Overview of Available Support

You have decided: the house needs new windows, better insulation, perhaps a heat pump. But before you sign the contractor’s quote, there is money to be had. Grant schemes change frequently, and it can be hard to keep track of what applies. Here is an overview of the most important options in 2026.

Energy companies’ grants

Energy companies (Ørsted, Norlys, EWII, Andel and others) are required to achieve energy savings among consumers. They provide grants for renovations that demonstrably reduce energy consumption.

Loft insulation: 3,000–10,000 DKK Depends on the loft area and current insulation thickness. The worse the current insulation, the greater the saving — and the greater the grant.

Cavity wall insulation: 5,000–15,000 DKK One of the cheapest energy improvements with the greatest effect. The grant typically covers 20–40% of the cost.

External facade insulation: 10,000–25,000 DKK Larger grant, because the saving is greater. Requires documentation of U-value before and after.

New windows: 5,000–15,000 DKK Applies when replacing older windows with energy-rated windows class A or B. The grant is calculated per m² of glazed area.

Heat pump: 5,000–15,000 DKK When switching from an oil or gas boiler to an air-to-water or ground source heat pump. The size depends on the expected saving.

Solar panels: 0–10,000 DKK Grants for solar panels vary greatly between companies. Some give nothing, others up to 10,000 DKK.

Important: Grants vary between energy companies — get quotes from several. Platforms such as Sparenergi.dk provide an overview.

The BoligJob scheme (tradespeople deduction)

The BoligJob scheme provides a tax deduction for labour costs (not materials) on green improvements:

• Deduction: Up to 12,900 DKK per person in 2026 for green improvements
• Deduction value: Approx. 26% — i.e. a real saving of approx. 3,350 DKK per person
• Covers: Insulation, window replacement, heat pump installation, solar panels, replacement of oil boilers
• Requirements: Payment must be made electronically, and the tradesperson must report the amount

For a couple, this gives up to 6,700 DKK in savings. Not a huge amount, but easy to benefit from.

The Building Grant Pool (Bygningspuljen)

The Building Grant Pool under the Danish Energy Agency has at various times provided grants for energy renovation of year-round homes. The pool has been open in rounds with limited budget — check ens.dk for current rounds.

Typical grants from the Building Grant Pool:

• Insulation: 20–30% of the cost
• Window replacement: 15–25%
• Heat pump replacing oil/gas: 15,000–25,000 DKK

The pool prioritises houses with a low energy rating (E, F, G) and large savings potential.

Municipal grants

Individual municipalities provide grants for specific measures — for example scrapping oil boilers, connecting to district heating or facade renovation in conservation areas. Contact your municipality for current schemes.

How to apply for grants — step by step

1. Get an overview of your home. Check the energy rating — it shows where the greatest savings lie.
2. Get quotes from contractors. You need concrete prices to apply for grants.
3. Apply for grants BEFORE you start. Energy company grants require pre-approval. The BoligJob deduction can be submitted afterwards.
4. Compare energy companies. Grants vary — some give twice as much as others for the same measure.
5. Document everything. Keep invoices, energy rating reports and approval letters. You must be able to document the saving.
6. Start work after approval.
7. Submit documentation. The energy company acknowledges completion. BoligJob is submitted via the tax authorities.

Which grants give the most per DKK invested?

Not all energy improvements give equal grants. Here are the most favourable:

1. Cavity wall insulation. Lowest cost, high relative grant. Often 30–50% covered.
2. Loft insulation. Cheap to carry out, good grant. Real saving from day one.
3. Switching from oil boiler to heat pump. Large saving, decent grant, and you are rid of the smell.
4. Window replacement. Moderate grant, but large comfort gain beyond the energy saving.
5. External insulation. Large grant, but also an expensive measure. Best when facade renovation was already planned.

Pitfalls

• If you start without pre-approval, the grant is lost. This is the most common mistake.
• Grants do not cover everything. They reduce the cost by 10–30%, rarely more.
• Grants change. What applied in 2025 may not apply in 2026. Always check current rates.
• You choose the energy company. You are not tied to your current electricity or gas supplier.

Example: total grants for a detached house

A typical 120 m² detached house from 1970 with energy rating F:

Measure	Cost	Grant (approx.)
Cavity wall insulation	30,000 DKK	8,000 DKK
Loft insulation (300 mm)	20,000 DKK	5,000 DKK
New windows (12 units)	120,000 DKK	10,000 DKK
Air-to-water heat pump	120,000 DKK	12,000 DKK
BoligJob (2 persons)	—	6,700 DKK
Total	290,000 DKK	41,700 DKK

The grant covers approximately 14% of the total cost. Add to this the annual energy saving of 15,000–25,000 DKK — that is the real gain.

Important: The figures are indicative. Grants vary between energy companies and change over time. Always check current rates before planning.

Timeline — when to apply

1. 3–6 months before: Research grant schemes and get quotes from energy companies and contractors.
2. 2–4 months before: Apply for grant from energy company. Wait for approval.
3. Approval received: Work can now begin.
4. During work: Document with photos and keep all invoices.
5. Completed: Send documentation to energy company and submit BoligJob via tax authorities.

How to move forward

Grants make energy renovation cheaper — but they should not dictate what you do. Start by finding out what the house needs, and use the grants to make the right measures more manageable. A professional survey of your home gives the best basis for prioritising.

The most typical measures — insulation, new windows and new roof with insulation — are all eligible for grants to varying degrees. If you experience a cold house or a high heating bill, it makes sense to start there.

Sources: Sparenergi.dk, Danish Energy Agency, Skat.dk — BoligJob, Bolius

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