I think you're reading too much into it. If you have to pay to replace a window that should have lasted, say, ten more years, that's money you now cannot spend

I think you're reading too much into it. If you have to pay to replace a window that should have lasted, say, ten more years, that's money you now cannot spend on improving your factory somehow. It is still economic activity (and the glazier doesn't mind the work) but it's remedial rather than generative. (The glazier that repairs the window could have been installing a new one in a new factory, eh?)