after.
The grates are custom made by professionals. The material used is stainless steel, so you don't have to worry about it anymore. The stainless steel grates are mounted under the existing steel grilles to prevent people from walking on them. After they are ready in the workshop, we will give you a delivery date. In the morning, souterrain basement and the windows are cleaned and in the afternoon the grates are placed. We make sure that the grates are demountable so that someone can always access it. Personally, I hate mosquitoes in my bedroom at night, so we make sure that no mosquitoes can get through while you can still leave the window open for the fresh Amsterdam air.