Maybe I'm being a grump but I find it a bit confrontational. I'm confused as to what they mean too. They posted it through my door today, I haven't even seen them yet (they have moved in four doors up).
Hiya Neighbour
On 24th of March our building work will be over and we will be good to go. If you could drop round with housewarmers between 3pm and 7pm we would be happy to offer a glass of wine.
Kind Regards
X and X