Whatever happened to courtesy? You're not suggesting they don't do the building work at all - you just wanted a heads up so you could have a chance to make alternative arrangements, or, at the very least, get your head round the fact it was going to be noisy. IME, noise is far more tolerable if it's been acknowledged, than when it's been imposed on you without warning.
Not so long ago, our next door neighbours but one buggered off for 5 f*g months while they had an extension built. I don't totally blame them but they didn't say a word to us, or another neighbour affected by the noise and obstruction (end of no through road). As it happens, I work from home and so does the other neighbour. They probably wouldn't have known this but neither could it be ruled out. We only found out when the one neighbour they did tell informed us. And …. tbh it was hellish, made all the worse by the rudeness. We had no way of contacting them to find out how long it was going on for, we had constant issues with builders blocking access and then being very slow to shift their lorries when asked, 'yeah in a minute luv' would turn into 10 or 15 (despite the fact it was possible to park considerately and not block), also hindered using the garden as we were overlooked by their scaffolding, …. before you even get onto the near constant noise, and regular swearing drifting through the window . To cap it all, when they did deign to return, the neighbours had a big 'extension warming' party - more noise!!! - which we weren't informed about or invited to, maybe as a bit of a peace offering or something? Nah ….. nothing, absolutely nothing, cheeky f**g fuckers.
We are having two, just two days worth of very minor work done shortly and will be informing the neighbours. To my mind that's just what you do.