ᐅ Flush interior doors without visible door frames?

We are looking for a supplier of flush interior doors without visible door frames for our new build, offering good value for money.

Do you have any company recommendations? Preferably with the option to order online.

The material quality is quite similar across the same grade. There are only three to four manufacturers in Germany anyway. Dealers usually stock at least two to three of these brands.
The most important factor is the installation company — the one that actually fits the components, especially for flush-mounted installations, where precision matters even more.
This is usually a local matter. Maybe ask neighbors or acquaintances?

Thank you for the quick response. I mean a flush interior door, as there are sometimes distinctions made here as well.

I already understood that, which is what my response was referring to.

I had mine made by a carpenter – it looks really good;

I wonder if this is also available from manufacturers of pre-made doors?

Today, we looked at fully flush doors from the company Herholz. The model is called Piur U-Design. The price per door is approximately 1,400 euros plus installation costs of about 700 euros each.