Night Construction

I'm pretty sick of them doing overnight construction work on our street. They warned us on Monday night by telling us that our water would be turned off from 10pm to 6am. Last night, there was no similar warning; they just started hammering and drilling away starting at about 10pm and on through the night. I find it obnoxious that they only feel the need to warn you about it if your water is turned off. Do they think that doesn't affect our sleeping? I sleep with a fan on to drown out noises like that and my fan is not even loud enough to completely wipe it out. I find it really really annoying and I really don't get why they can't do it during the day. I'm guessing nighttime noises are a bigger nuisance to more people than being without water for a few hours during the day.