Construction You will start the project by preparing the site. As part of this, you will dig the foundations, install the necessary drainage and lay down a concrete foundation. With the foundations laid and the wall constructed to finished floor level, you will now prepare the floor slab. Next, you will construct the dwarf wall if required. With the base of the conservatory in position and the dwarf walls completed, you can now put in the window frames which will make up the conservatory sides. Following straight on from this, the roof is installed. Now you can glaze the roof and fit the sealed glass units to the frames of your conservatory. From here, all you have to do is furnish your new conservatory and it's ready for you to enjoy for many years to come!