It shouldn’t do. Most companies will do all the interior work first, and the last job to do will be creating the opening from the house to the conversion. A reputable company will make sure they cause as little disruption as possible during this time.
Torpoint
Torpoint is a civil parish as well as community on the Rame Peninsula in southeast Cornwall, England, UK. It is positioned opposite the city of Plymouth throughout the Hamoaze which is the tidal estuary of the River Tamar. Torpoint had a population of 8,457 at the 2001 census, lowering to 8,364 at the 2011 census. 2 selecting wards also exist (Torpoint East and also West). Their combined populations at the same census were 7,717. In the Cornish language Torpoint is called Penntorr (neighborhood people band Pentorr have taken their name from this). Torpoint is connected to Plymouth (and also Devonport) by the Torpoint Ferry. The 3 vessels that run the service are chain ferryboats-- that is, they are pushed throughout the river by drawing themselves on taken care of chains which exist across the bed of the river. The trip takes around 7 minutes.