What to Give as a Response

I am proud of my house. Therefore I've told a lot of people about the house.  Therefore all those people are asking "When will the house be done?" and "How long will the renovations take?"  My contractor says by the end of January.  One of my relatives says six months.  I say "I don't know."  So the official answer: "It will be done when it's done."  Until then, there will be entries and occasional pictures.