Subsidies for heat pump

Heat Pump Subsidies: Your Investment in the Future.
The switch to renewable energies is a central concern for a sustainable future. Heat pumps play a key role in this as an efficient and environmentally friendly heating technology. As a leading manufacturer of heating and ventilation systems, we support the energy transition with innovative solutions that not only reduce heating costs, but also contribute to climate protection.
Government subsidy programmes are available to make it easier for you to switch to this pioneering technology. These subsidies significantly reduce the initial investment costs and make the decision in favour of a heat pump even more attractive.
and up to 70 % total funding
In 2025, KfW will continue to generously support you in switching to a modern heat pump. Property owners can benefit from a subsidy of up to 70%. This is made up of 30% basic funding and an additional climate bonus of 20% for owner-occupiers who replace a functioning fossil fuel heating system. Under certain conditions, further bonuses can be granted, increasing the total subsidy to up to 70 %.
Please Note!
The maximum eligible investment costs are up to 30,000 euros for the first housing unit. You can receive a grant of up to 70 % of this, i.e. 21,000 euros.
30 % basic subsidy
For all existing buildings. For private homeowners, landlords or non-profit organisations. For heat pumps that use water, ground or waste water as a heat source. An efficiency bonus of an additional 5% is also available for heat pumps that use a natural refrigerant. A supplement of 2,500 euros is granted for biomass heating systems if they comply with a dust emission limit value of 2.5 mg/m³.
+ 20 % speed bonus
Climate speed bonus of 20% until 2028 for the early replacement of old fossil fuel heating systems (i.e. old oil, coal, night storage or gas heating systems that are at least 20 years old) for owner-occupied housing units. Thereafter, the climate speed bonus will decrease by 3% every two years, initially to 17% from 1 January 2028.
+ 30 % income bonus
Income-related bonus of 30 %. For owner-occupiers with a taxable household income of up to €40,000 per year.
+ 5 % efficiency bonus
Efficiency bonus of 5 % for the use of heat pumps with natural refrigerants or geothermal energy as a heat source.
How to get your subsidy
Obtain a quote
Obtain a quote
Ask your KERMI specialist partner for advice on the right heat pump solution for you. They will provide you with a binding offer for the selected system.
Order placed
Order placed
Once you have made your decision, award the contract to your KERMI specialist partner. The supply and service contract must contain a suspensive or cancelling condition that is linked to the granting of the subsidy. Your specialist partner will know the appropriate wording.
Please Note!
If this condition is missing or if you start the refurbishment before step 3, this is considered to be an early start of the measures. In this case, the subsidy will be rejected.
Submit an application
Submit an application
Submit your application online via the KfW funding system. Log in to the portal and enter the required data step by step and upload any necessary documents. Your KERMI specialist partner will complete the technical details directly in the system.
Supplementary loan
Supplementary loan
As soon as you have been approved for the subsidy, you can also apply for the low-interest KfW supplementary loan from your bank.
Helpful tip!
If you are implementing an eligible measure and have a taxable household income of up to 90,000 euros, you can also apply for a supplementary loan from KfW and use this as a bridge until you receive the subsidised amount. Thanks to attractive interest rates, it can also be worthwhile financing the entire measure with the supplementary loan.
Realisation
Realisation
Once the subsidy has been approved, you can get started. Once the subsidy has been approved, the refurbishment measure must be implemented within 36 months.
Important!
If you start the refurbishment measures before you receive the grant notification, there is no legal entitlement to the grant.
Documentation of use
Documentation of use
Once the work has been completed, your KERMI specialist partner will create an online "Confirmation of completion". The KfW Bank carries out the final inspection, confirms the height of the subsidy and pays out the subsidy amount.
Helpful tip!
If you are implementing an eligible measure and have a taxable household income of up to 90,000 euros, you can also apply for a supplementary loan from KfW and use this as a bridge until you receive the subsidised amount. Thanks to attractive interest rates, it can also be worthwhile financing the entire measure with the supplementary loan.
Structure of the BEG (federal subsidy for efficient buildings)

The BEG consists of three sub-programmes
Further links
Further subsidy options for your home
In addition to the attractive subsidies for heat pumps, there are a number of other state subsidies for your house or flat.
Regardless of whether you want to renovate in an energy-efficient way, switch to renewable energies, remove barriers or increase burglary protection: There are suitable subsidy programmes available for almost every project relating to your property. The purchase of an existing property can also be subsidised.