BAFA funding, what is the procedure? Experiences?

Good day everyone,

We have bought a house in which the windows (roof and regular windows) need to be replaced. Window installers and roofers gave us the tip regarding BAFA funding, I have read up a bit on it. We already have an offer from the roofer, the window installer will come in the next few days and make us an offer, and we also have an energy consultant who is on the list and will come in the next few days.

Questions:
Question 1:
Somewhere I think I read that we must first submit the funding application and then the energy consultant is allowed to come and create a renovation plan, but I also read that the energy consultant can submit the application for us.
a) What is correct?
b) What is better, we submit the funding application or the energy consultant?
c) Would you have the renovation plan created by an energy consultant or by a chimney sweep with energy consulting?

Question 2:
If we submit the funding application now, we can already let the companies come, but it is at our own risk because it has not yet been approved, have I understood that correctly?
a) What happens if we already let the companies come and, for example, have triple glazing installed but BAFA only pays for double glazing, do we then receive the difference as funding or nothing at all?

- We still have an outbuilding and a garage on the property; both need new roof insulation. Can we also run that through this?

Question 3:
On the website energie-effizienz-experten.de you can find energy consultants and they have categories

Federal funding for efficient buildings: Residential buildings:

If an energy consultant has not selected thermal insulation, can they not advise on that either?
Because we still have an exposed wall, so an energy consultant with thermal insulation would be more appropriate, right?

Many thanks in advance for your answers.

First submit the application (based on the quotes), then only award the contract. No activity is allowed beforehand. For building envelope measures, as far as I know, even the consultant must submit the application. The renovation roadmap gave us an additional 5% bonus, it depends on what your measures are supposed to cost and how much the energy consultant wants for it. Mostly I think it is worthwhile.

The BAFA has requirements for the installed components. For windows, for example, a thermal transmittance coefficient of 0.95 W/m2K. Double glazing does not meet this and there is no funding for such components. You simply have to mention this to the window manufacturer and request it in the quote. There are also requirements for the roof, so make sure to check again.

Funding is limited to costs of 60,000 euros per year and housing unit. Usually, roof and windows together cost more, so it might make sense to tackle it in 2 different years -- it's just unfortunate now that the new year has just started...

The offers must include a suspensive condition, the U-values for all relevant components, and an execution period for the project.

The general procedure is as follows:
- Engage an energy consultant, have an iSFP created
- Obtain and select offers
- Submit the final offer with the application (have it done by the energy consultant)

Once the application has been submitted, you may start implementation at your own risk.