Was tun mit einem Wespennest unter dem Dach?

There are special fire extinguishers for residential areas. In a spray form. Such a fist-sized socket will easily suffice

I would suggest using the services of companies that specialize in removing wasp nests. They should demonstrate professionalism and remove the nest without any problems!!

If you have access to the nest, you can spray it strongly with water, for example from a hose. Wasps are not resistant to rain, water, they do not fight the enemy, but the weather. When wet, they lose the ability to fly and the nest is destroyed by a strong stream. After knocking down the wet ones, collect them and take them to a safe place.

Wasp extinguisher, gloves, and some larger box with a lid. (theoretically, a suit would be useful, but my nest was small enough and not hung high, so there was no risk of falling, and I had a large enough field for a quick retreat - ultimately I came out unscathed)https://allegro.pl/oferta/gasnica-na-osy-i-szerszenie-300-ml-bros-1511669209 I approached the extinguisher as close as I could and started spraying, also inside the nest - the wasps had no desire to fight I placed the container on the nest from the bottom and grabbed the nest with the glove at its top part and tore it off I closed the box and neutralized the nest I also sprayed the place where the nest was located with the extinguisher In a week or two, I will let you know if they have reappeared in this place

HornetLu

Check the building insurance conditions. There is a non-zero chance that it covers the elimination of a wasp nest. Wasp spray costs several dozen zlotys. Nevertheless, it is worth trying to do it yourself before calling a professional team, as specialists cost several hundred zlotys. In my block, after the wasp nest was exterminated, the wasps did not return, even though no artificial nest was installed.