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.
Isle Of South Uist
South Uist is the second-largest island of the Outer Hebrides in Scotland. At the 2011 census, it had a typically resident population of 1,754: a reduction of 64 given that 2001. The island, in common with the rest of the Hebrides, is just one of the last continuing to be strongholds of the Gaelic language in Scotland as well as the population-- South Uist's citizens are known in Gaelic as Deasaich (Southerners)-- is about 90% Roman Catholic. The island is house to a nature book and a number of sites of historical interest, including one which is the just location in Great Britain where ancient mummies have actually been discovered. In the northwest, there is a rocket testing variety. In 2006 South Uist, together with neighbouring Benbecula and also Eriskay, was involved in Scotland's biggest-ever neighborhood land buyout.
