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.
Saxmundham
Saxmundham is a tiny market community in Suffolk, England, embeded in the valley of the River Fromus regarding 18 miles (29 kilometres) north-east of Ipswich and also 5 miles (8.0 kilometres) west of the shore at Sizewell. The community is bypassed by the A12. It is offered by Saxmundham railway station on the East Suffolk Line. Saxmundham Town Council comes under the new East Suffolk District. It was previously in Suffolk Coastal District. The area electoral ward likewise has the name Saxmundham. Its population at the 2011 census was 4,913. The community's name purportedly stems from the Old English "Seizmond's House". The earliest recorded reference of Saxmundham is in the Domesday Book of 1086 which points out 3 churches. It has had a market charter considering that at least 1272 as well as continues the custom to now.