Burglary protection - Upgrade windows from WK2 to WK3 - Alarm system?

Then you could just take fixed glazed windows on the ground floor as well? If you don’t open them anyway, you might as well save the handles

We actually did it that way in the living/dining area. A sliding door to go outside, the rest is fixed glazing. The air exchange is handled by the controlled residential ventilation system.

Then could you just use fixed-glass ones on the ground floor as well? If you’re not going to open them anyway, you might as well skip the handles entirely

Nope, you can open them, but you don’t have to.
You have the option, but it’s not necessary.

All our windows are doors except in the guest WC and by the kitchen sink, I love being able to go outside everywhere. When the day ends, everything is locked up.

Yes, of course, what else would the handles be for? Then you might as well install the simple ones if the key is inserted.

I currently live in a rental building (built in 74/75) and we have lockable handles everywhere. Yes, the keys are inserted everywhere, but the locks are never actually pressed. Here, practically every window is opened at least once a day. It would drive me crazy to have to take keys, lock, etc. for that.
Therefore my question. I already thought that the locks are pointless if the keys are inserted or the lock hasn’t even been pressed. That would be way too much effort for far too little risk for me. So thanks, those things would have already been crossed off the must-have list for the new house, if not for ...

The trick is controlled ventilation. We don’t have to open most windows on the ground floor anyway, so all keys are stored centrally near the patio door (in a drawer). Upstairs the keys are simply in the lock.

... Bieber0815 posting this. That actually makes sense to me; with controlled indoor ventilation, the need for airing is reduced. At least that’s the plan.

Then you could just take fixed glazed windows on the ground floor? If you don't open them anyway, you can just as well do away with the handles altogether

Compared to the current rental building, the new house will actually have many fewer windows to open. Why bother? Fixed glazing is cheapest and should bring in light; air comes from the controlled indoor ventilation. Of course, there will be one window per room that can be opened, but not like now, 2-4.

On the upper floor, it will be difficult to clean the windows with fixed glazing.

Best regards
Sabine

It will be difficult to clean the windows upstairs with fixed glazing.

Best regards
Sabine

Already asked the window cleaner. He has a ladder anyway and he prefers to clean from the outside = less dirt. Slightly more effort for him (to secure), hence a few euros more for his service.

Then could you also just take fixed-glass windows on the ground floor?

Well, then you can never, ever, ever open them. I don't know if you want to make such final decisions. The savings will be small, right?