All-glass railing prefabricated kit or rather a metalworker?

Hello,

I have a 4m long concrete retaining wall, about 25cm wide. We want to install an all-glass railing as a fall protection.

The local metalworker offers this for €3500 - €4000 gross.

Now I’ve come across kit sets. With certain providers, you can configure the railing online and it is then delivered pre-cut (mounting rails, mounting material, and glass panels). Based on the assembly videos, it looks as "simple" as I imagine. The mounting rails are basically U-profiles into which a screw goes in the middle inside, which is anchored with dowels into the concrete wall, i.e. from above. Insert rubber gaskets, insert the glass panel, insert the clamping piece, more rubber gaskets.

I’m not worried about the assembly itself; together with my father-in-law, it won’t be a problem.

I’m much more wondering whether these kits are really any good or just "junk." If it’s ultimately the same material as the local metalworker would also use, I’d just do it myself. The kits cost €1700 at the provider Huero and €2545 at Geländerladen.de.

Basically, I find the providers through Google. Does anyone perhaps know a similar provider from their own experience?

I have installed a 3.90m long railing on the side. Consisting of 2 glass panes

Maybe you should first install the profiles and wait to see if they are straight, then order the glass. Often, something comes up that you don't expect beforehand; I see that as the only problem with your plan. For example, we have a glazier on site who also does shower walls, etc. He has the glass and orders the matching profiles as needed. Maybe that way around would also be an option. For DIY, I would probably choose the profiles myself and hold them in my hand first.

Really, nearly 2 meters per pane? Wow. What kind of glass did you use and what are the dimensions?