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.
Carnforth
Carnforth is a small town as well as civil church near Lancaster in the north of Lancashire, England, positioned at the north east end of Morecambe Bay. The church of Carnforth had a population of 5,350 recorded in the 2001 census, as well as forms part of the City of Lancaster. The 2011 Census measured a population of 5,560. Because of the distance of the shore and capitals, Carnforth is a popular base for walkers and bikers discovering the location. The River Keer, the West Coast Main Line (WCML), the A6 and also the Lancaster Canal pass through the community. The M6 freeway passes just to the eastern, connected to Carnforth by the A601(M). The name "Carnforth" is thought to originate from its old function as a ford of the River Keer on which it is positioned. Gradually the descriptive name "Keer-ford" may have morphed into the modern "Carnforth". An alternative explanation is that the name stems from 'Chreneforde' as well as is Anglo-Saxon in origin, as mentioned in the Victoria County Background of Lancashire.