Construction costs are currently skyrocketing

I agree, I wouldn’t go through the general contractor either.

But high-quality custom-made fly screens are a real blessing. We have installed fly screens on a total of 8 windows and 1 double door to the terrace. I can really only recommend them to everyone. Certainly, we still get the occasional fly/mosquito that wanders inside, since the door to the utility room, as well as the front door and the skylight windows, don’t have any, but it’s really very manageable. And you can leave the bedroom window open all night and no annoying buzzing comes in. If you don’t have any yet, get some, it’s one of the best investments in the whole house. The quality of life is massively higher because of it.

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I don't think I would get such things from the general contractor.

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I don't either. The window installer is an independent company. The insect screens are to be done by him after the house construction, as mentioned. He works excellently and knows our house. No summer without insect screens on (almost) all windows and terrace doors.

We got ours from a local sun protection technology company, from which we also have our awning. In addition, he also does terrace roofs, roller shutters, parasols, sun sails,... ZIP code is 91555

OK, thanks! If it can be done easily afterwards, I'll leave it out during the sample selection.