Retrofit window closing contacts

But the window doesn't come with a cable and integrated sensors, does it?

In case of doubt, it has proven useful to call the manufacturer, play dumb, and simply ask whether it works for this or that window.

Also annoying. If the active part is attached to the frame, you can't make a vibration warning.

For me, the whole thing sounds a bit over-engineered. You are building with Allkauf Haus, so why pursue such a special solution? Is there a particular reason? Security considerations?

Is there a special reason?

Probably male playfulness - I could understand that well.

Safety considerations?

It doesn't help if the window is simply smashed...

But the window doesn’t exactly come with a cable and integrated sensors, right?

No, most likely not. But if the wall is open and you can reach every window frame from three sides, installing, drilling, and connecting shouldn’t be a problem, right!?

In case of doubt, it has proven useful to call the manufacturer, play dumb, and simply ask if it works for this or that window.

Sure, already done. First with Allkauf Haus and then escalate further ...

It’s also annoying. If the active part is attached to the frame, you can’t have a vibration warning.

Security considerations?

It doesn’t help if the glass is simply smashed...

These sensors have nothing to do with burglary protection. This is only about status indicators, whether a door is open or closed. If the kids still have a window open ... just comfort. No security aspect at all.

To me, the whole thing sounds a bit over-engineered. You are building with Allkauf Haus, why pursue such a special solution there? Is there a particular reason?

Probably male play instinct – I can well understand that.

I am an engineer and have been dealing with (home) automation for almost decades; wishes arise in a private home. BTT: Do you know manufacturers for retrofittable, integrated, invisible, wired closing sensors for doors and windows? Ones that can be retrofitted to (almost) any window/door (manufacturer).

I have done that myself several times, at least 30 windows and 10 doors. When the window comes from the manufacturer with sensors already integrated, there is a cable coming out of the frame on one side. This is routed into the empty conduit and extended there with a crimp connector. This works not only almost without problems, but always without problems.

That is clear, I have it the same way at my place. But that was not the question, because the windows are already pre-drilled at the factory there, and the cables can be properly inserted and sealed during window installation.

We ourselves have planned a wooden stud construction and are doing the drywall ourselves. Therefore, all walls are still empty (no insulation) and open during window installation. I am not worried at all about the connection.

OK, that is something different. If you get behind the window frame (more precisely, you don’t, you will have wood studs all around), then it is comparatively easy.

If you have no concerns about drilling precisely through the window frames & wooden beams yourself, then it is of course easily possible.

Just take an installation contact switch, e.g. BSS 404042.x, drill through the window frame (if necessary only drill the wood studs with a diameter for the cable) and the sash only as deep as the magnet is long and glue/screw (depending on the manufacturer) the parts on. Provided no locking monitoring is desired, this is also relatively easy to retrofit.

Oh, one thing: I don’t know all window systems, so if there are differences, you should possibly clarify with Allkauf Haus in advance exactly what you will get. If you have a system with the (casement) window where the mushroom head at the bottom of the window goes into three different positions, depending on closed/open/tilted, then you could install the 2 reed switches right there and evaluate the states.

If not, you will probably have to go top and bottom.