Funding & renovation check
Check grants, costs, and savings interactively.
Use the funding check, solar calculator, heating calculator, window and insulation check, and wallbox calculator for realistic grants, payback, and CO2 impact.
- Funding programs in view
- Interactive renovation calculators
- Clear next steps
Funding check
Which funding fits your project?
Enter project, federal state, and status. The check shows matching programs and the key deadline note.
Status
Building
Project
Law & application
Check first. Commission later.
The biggest funding mistake is commissioning too early. That is why the page shows deadlines, sources, and uncertainty directly in the calculator.
Apply before commissioning
Many grants must be requested before the project starts. Getting quotes is usually possible; commissioning often is not.
Technical minimum requirements
U-values, efficiency, contractor declarations, and energy-efficiency experts can be decisive.
Reviewed data
Changed rules go into admin review first. Only manually confirmed content is public.
