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Energy consulting for residential buildings

Your renovation roadmap (iSFP) in Central Hesse – with 50 % funding

Fixed price €1,490, of which BAFA covers up to €650. Your own contribution: €840. An energy consultant from the federal expert register inspects your house on site and explains the roadmap to you in person.

Start the funding check →How it works
  • Listed in the federal register of energy efficiency experts
  • Independent of manufacturers
  • Fixed price
Portrait of Aysegül KaraaslanYour consultant: Aysegül KaraaslanFederal energy efficiency expert register, no. EB353468
Funding checkQuestion 1 · about 3 minutes

Which building is it about?

Commercial or mixed use? Choose this in the check. No sign-up; you see your result right afterwards.

What you get

Check eligibility

In 3 minutes you know whether your building qualifies.

A clear roadmap

Step by step: which measure makes sense when.

Fair costs

Fixed price, government subsidy and your contribution at a glance.

Costly mistakes a plan prevents

Only do what your house really needs – in the right order and with full funding.

  • Wrong order

    New heating first, insulation later: the system often ends up larger than necessary and costs money it does not need to.

  • Funding left on the table

    Without a roadmap, at most €30,000 of insulation and window costs are eligible instead of €60,000. Signing a contract before applying can cost you the funding altogether.

  • Single quotes only

    Every company offers what it sells itself. The roadmap shows beforehand what your house really needs.

  • Paying twice

    Measures that are not coordinated often need rework later, for example when new windows and facade insulation do not fit together.

Example: €60,000 for insulation and windows

Subsidy without roadmap
€4,500
Subsidy with roadmap
€10,500
Extra funding
+ €6,000

The roadmap itself costs you €840 after the subsidy.

Check what my house needs

Example single-family home, BAFA funding for individual measures on the building envelope: 15 % base funding, eligible costs up to €30,000 without and up to €60,000 with an iSFP, iSFP bonus of 5 % on the part above €30,000. Rules since 21.07.2026, other bonuses not included. We clarify your figures in the consultation.

How it works

Four steps, from the first question to your finished roadmap.

  1. 01 · about 3 minutes

    Enter your details online

    You answer a few questions about your building.

  2. 02 · about 2 minutes

    Book an appointment right on the website

    A phone call or an on-site visit, whichever suits you.

  3. 03 · call 15 minutes, on-site visit about 3 hours

    Our expert team visits you or holds the call

    We survey your building or clarify everything by phone.

  4. 04 · as agreed

    Clarification on site and handover of your finished iSFP

    You receive your roadmap and we explain it in person.

See the process in detail →What exactly is an iSFP? →

What does a renovation roadmap cost after funding?

One fixed price, one government subsidy and your own contribution at a glance.

  • BAFA covers 50 % of the fee.
  • Up to €650 subsidy for single-family and two-family homes, up to €850 for multi-family buildings with 3 or more housing units.

More on pricing & funding →Example calculations →

Fixed price · single- or two-family home

Fee (fixed price)
€1,490
BAFA subsidy
− €650
Your contribution
€840

You will see your personal contribution after the funding check.

We come to you

For the on-site visit we travel across Hesse and the neighbouring regions. The funding check verifies your postcode.

All towns in our service area →

Qualifications and memberships

Independent, professionally verified and approved for government-funded consultations.

Portrait of Aysegül Karaaslan

Your consultant

Aysegül Karaaslan

Managing director, Aurora Engineering GmbH · issues the renovation roadmaps

Federal energy efficiency expert register, no. EB353468

More about us →
  • Energy efficiency experts for federal funding programmes

    Listed in the federal register of energy efficiency experts. A prerequisite for consultations with government funding.

  • Chamber of Engineers of Hesse

    Member of the Chamber of Engineers of Hesse.

  • Energy consultant TU Darmstadt, residential buildings

    Further training as an energy consultant for residential buildings at TU Darmstadt.

Our network

Three services that belong together: energy certificates, engineering and building services.

Frequently asked questions

Your question is not there? Write to us at info@isfp-berater.de.

Is the iSFP still worthwhile after the BEG reform?

In many cases, yes. Under the rules since 21.07.2026, individual measures are eligible up to €30,000 per housing unit and year without a roadmap and up to €60,000 with one. The iSFP bonus of 5 % applies to the part above €30,000. If you are planning larger measures, you benefit noticeably; for smaller projects the plan mainly gives you the right order. We clarify what applies to your house in the free initial call.

What does the iSFP cost me after funding?

For single-family and two-family homes our fixed price is €1,490. BAFA subsidises the consultation with 50% up to €650, so your own contribution is €840. For multi-family buildings we quote the fixed price in a conversation.

Does someone really have to visit?

Yes. For a reliable renovation roadmap we survey your building on site: building elements, heating, roof and basement. This takes about three hours.

How long does it take?

The funding check takes about three minutes. After the on-site visit we prepare your roadmap and explain it to you in person. We agree the exact schedule with you.

Do I have to carry out the measures?

No. The renovation roadmap is a basis for decisions. You decide whether and when to carry out which measure.

See all questions →

Ready for your renovation roadmap?

The check takes only 3 minutes.

Start the funding check
Start the funding check