⚡ In brief: A BAFA-subsidized energy consultation for a single-family home costs around €1,500–2,000 gross. After deducting the BAFA subsidy (50%, max. €650), you pay around €850–1,350 out of pocket. In return, you receive an individual renovation roadmap (iSFP) with specific measures and subsidy recommendations.
Why Energy Consulting in Siegen?
The Siegen-Wittgenstein region has a high proportion of buildings from the 1950s to 1980s — often with thin walls, outdated oil heating, and poorly insulated roofs. At the same time, the hilly terrain in Siegerland leads to higher heating consumption than in milder regions.
Professional energy consulting shows you which measures have the greatest impact for your building — and which subsidies you can get for them.
How Energy Consulting Works
Free Initial Consultation
By phone or on-site: We discuss your situation, goals, and open questions.
On-Site Visit
We inspect your building: heating, windows, insulation, roof, basement. Duration approx. 2–3 hours.
Analysis & Calculation
We create an energy model of your building and calculate the current state and possible measures.
Renovation Roadmap (iSFP)
You receive an approx. 30-page report with prioritized measures, costs, savings, and subsidy recommendations.
Implementation Support
On request, we assist with subsidy applications, contractor selection, and construction supervision.
What Does Energy Consulting Cost?
Residential Energy Consulting (BAFA)
Multi-Family Building (3+ units)
Energy Certificate (standalone)
What Do I Get for My Money?
- ✓On-site inspection by certified energy consultant (dena / TU Darmstadt)
- ✓Energy assessment of current condition
- ✓Individual renovation roadmap (iSFP) with prioritized measures
- ✓Cost-benefit analysis for each recommended measure
- ✓Overview of all available subsidy programs (KfW, BAFA, BEG)
- ✓Timeline with logical sequence of measures
- ✓5% iSFP bonus on all future BEG individual measures
Our Service Area
We serve the entire Siegen-Wittgenstein region and beyond:
Through our second office in Königstein im Taunus, we also serve the Rhine-Main region.
💡 Local Expertise
As local energy consultants, we know the typical building types in Siegerland, which contractors work reliably, and are familiar with regional subsidy programs from Stadtwerke Siegen and the district.
Schedule a Free Initial Consultation
Call or write to us. We'll discuss your situation and show you what's possible — no obligation.