Door manufacturer/provider, can it get better?

The prices sound to me like they are only single-sided wing covering. I believe I have mentioned before that the frame profiles and the fillings are two separate areas of expertise, manufacturers usually specialize in only one of them, and a door therefore actually always has two manufacturers (excluding fittings etc.). However, since the customer only wants one contact person, the whole door is offered to them from a single source; both manufacturers want to do this business. So you can find complete doors not only from door manufacturers but also from filling manufacturers. However, there are also a few filling manufacturers who only supply and do not serve end customers.

The prices sound to me like they cover the wing on only one side.

I was told otherwise on site... so it is on both sides.

Can you suggest a provider?

That would then be a special size for the mentioned model. You won’t end up at 4k€ then.

Can you suggest a provider?

I am no longer in the industry, and contact with the filling people was not my area.

I was told something different on site.... so it is on both sides.

These can still be reasonable prices, but we would have been - by far not alone - significantly more expensive (or are the prices without installation?).

Update:

just received an offer from the local carpenter:

Aluminum door with side panel (as 1 element)
Aluminum door with side panel
System Aliplast Star 90 mm color RAL 7016 anthracite gloss on both sides
Dimension 1500 x 2394

Overlapping sash filling on both sides 90 mm

In the main sash:
TALLIN, brushed INOX application and crystal from
Svarowsky on both sides
Side panel:
Triple glazing Satinato

Equipment:
Automatic 3-point lock Winkhaus
3 hinges 3D
Thermally separated aluminum threshold
Profile cylinder with 5 keys and security card
Handle inside stainless steel / brushed push handle KPK KCK 750

= 3,975€

outside
Ring rosette stainless steel

including delivery as well as installation according to recognized
rules of technology!
without electrical connection work!

A1 (alternative position)
Electric lock Winkhaus EAV3
Fingerprint
= 750,00

A2 (alternative position)
Roller hinges
3-piece
= 350,00

Flat travel costs
Arrival and departure
= 25.00

Total amount without the alternative positions = 4760€ (gross)

What do you think of the offer?
Should I include both alternative positions?

Have a nice evening!

Regards

PS: The carpenter has a very good rating.

Is the fingerprint secure Ekey? Which version? Is it a motor lock? Would always prefer local providers.