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.
Beaminster
Beaminster is a town and also civil parish in Dorset, England, positioned in the Dorset Council management area approximately 15 miles (24 km) northwest of the county town Dorchester. It is sited in a bowl-shaped valley near the source of the small River Brit. The 2013 mid-year quote of the population of Beaminster church is 3,100. In its history Beaminster has been a centre of manufacture of bed linen and woollens, the raw products for which were produced in the surrounding countryside. The town experienced three significant fires in the 17th and 18th centuries; the initial of these, during the English Civil War, almost damaged the fabric of the community. Beaminster parish church is notable for its architecture, specifically its tower.