Upgrading the window (mushroom head) is allegedly not worth it - opinions?

You sound quite convincing

Of course, we are also uncertain because we already know that they earn more when we order a batch of new windows and that if there is interest in closing the deal, the argument naturally leans more towards buying new ones.

But the offer is now set at 400 € net. Even if it is deliberately priced high. But the offer is now set at 400 € net. Even if it is deliberately priced high.

If you say the mushroom heads can also be installed very cheaply: how do I manage that concretely, when the offers I have are completely overpriced?

If you say the mushroom heads can also be installed very cheaply: how exactly do I manage that when the offers I have are completely overpriced?

Well, what does "very cheap" mean – if it's not quality, the whole operation isn't worth it. This is such a popular retrofit product, you will surely find cheap knockoffs in several places, but what do you want to do with them?

What works is: "not overpriced." Getting offers is the wrong approach for that: you'll just collect discouraging offers because nobody wants to ruin their new business with it – especially not with new customers. The window fitter who made the windows is the first point of contact. Usually, they leave their name on a plaque on the frame (possibly inside) or on the handle. Or the neighbors all took the same one back then, and at least one still remembers the name.

Otherwise – rumor has it – window installers are regularly asked what their after-work time is worth. A knave who thinks ill of the fact that they freely share their mobile numbers.

so window replacement from double glazing to triple glazing with all the fuss is not worth it.

from a security perspective, burglars would 99% always choose the patio door and not the small window right on the street. if you keep your mouth shut and don’t tell anyone, it’s enough to just secure the patio doors. of course, it’s important that no difference is visible from the outside afterwards. (new doors are obvious to anyone and they will then take the old ones).

the fittings are definitely available somewhere to buy. they all cook the same soup. the replacement can’t be a big deal either. as already mentioned, the former window installer would be the right contact person, as he is most likely still willing to help his former customer.

This is a Kampa prefab house, so it wasn't a window manufacturer from the neighborhood...

Cheap is not inexpensive - we definitely don't want to save at the wrong end. What price range do you consider "not overpriced"?

Kampa is no small fry. They will still remember whom they had under contract before. Unless they themselves are willing to provide customer service.

Your windows are preserved more than appropriate for their age. But their replacement will not wait much longer than ten or maybe twelve more years. I would consider that your "depreciation horizon." Only you can determine what price seems acceptable to you then.

You will be able to find fair providers - but not so many that there would be a large selection, also not in terms of price. has already given a saving tip.

The fittings are available at Meesenburg. Represented nationwide. However, they do not sell to end customers. Only to the trades.