First you need to prepare rooms for these works, that is, you need to prepare those rooms in which you will dismantle old wooden windows. It is necessary to remove everything from the windowsill, take furniture from the room or cover it with a film. The same must be done with technology. You need to prepare for the fact that there will be a lot of dust and dirt. First you need to remove all the sashs of the old window. You can put them with a mount or small crowbar. If the loops are not disgraced, you need to knock out the pins from them with a chisel or chisel. If you have to dismantle a double window, you will need to cut the partition, and if we are talking about a single window, you will have to saw the lower part of the frame. When the tied is made, you should break the frame in this place, and then remove all the other parts of the frame. In this case, the further use of the window will be impossible. If it is still planned to put it elsewhere, then the risk of damage to the slopes and large time costs increases. After all the wooden parts of the old window are dismantled, you need to clean the opening of plaster and fasteners.