I'm glad to hear that Sparkler is starting to come out. I live in a condo complex and we have annual fire alarm and smoke alarm testing. Since I have two bedrooms, I just put the 7 younger cats in the second bedroom which is a cat room and the oldest 3 stay in my bedroom. They all run and hide from the noise so no one even knows that I have cats. I also like to be home when repairs are being done. Sky used to get a bit overly friendly with repairmen in the past and bug them. The rest of my gang isn't used to company so most of them will just hide. I would think that you would be able to put most of your cats in a different room away from the windows that will be replaced. Good luck.