Notes from a negative type...

I was cat sitting for a friend during her home's renovation and her cat did have a LOT of trouble with the noise/dust/ people in and out. I know cats differ, but her cat developed a nervous twitch and ate a band of fur off of her tail in the stress. It really messed up our friendship for a while. Perhaps if your cats do have each other to turn to in the stress, and with you in the evenings it will help... My experience with cats and renovations is more negative than the rest listed here though...