some) At first they said they would be replacing them, however their intention now is to bring everything inside the house. to do this this they will be demolishing part of the house.They are bringing the stairs forward, bringing the bathroom to the top of the new stairs, knocking down 2 walls, upstairs, knocking down a wall in the kitchen. (which will take between 7-12 weeks) You can if it's really necessary move out while the work is done. You have to leave your carpets and things like that in the house, it will all be covered up. My concern is I don't really want to leave my house empty while workers are going on, i don't think they do as good a job as when you are there. Even so my big concern is the dust, all of us know how that can play our lungs up. They say they will hoover after they finish. Can anyone tell me how long it takes to get rid of brick/plaster dust completely.