For internal wall insulation you would need to clear all furniture, paintings, etc away from the walls to be insulated.
For external insulation you would need to contact the ESB a month before to have an extension piece added to high level the electrical connection to the house to allow the EWI to fitted. Then clear a space around the house to allow for scaffolding to be erected.
For ground floor insulation you would need to clear everything out of the ground floor and move out for a few weeks.
For attic insulation, clear all stored items out of the attic before we arrive on site.