This depends on the amount of insulation already present in your property. However, adding insulation has been proven to improve the energy efficiency of your home and decrease your heating bills, this is more obvious in older properties or where single glazing is still in situ.
Kingsbridge
Kingsbridge is a market community as well as vacationer center in the South Hams district of Devon, England, with a population of 6,116 at the 2011 census. 2 electoral wards birth the name of Kingsbridge (East & North). Their combined population at the above census was 4,381. It is located at the northern end of the Kingsbridge Estuary, a ria that reaches the sea 6 miles south of the community. It is the third biggest settlement in the South Hams and is 32 miles (51 kilometres) south-southwest of Exeter. The community formed around a bridge which was built in or prior to the 10th century between the royal estates of Alvington, to the west, and Chillington, to the east, hence providing it the name of Kyngysbrygge ("King's bridge"). In 1219 the Abbot of Buckfast was approved the right to hold a market there, as well as by 1238 the settlement had become a borough. The mansion remained in property of the abbot up until the Dissolution of the Monasteries, when it was provided to Sir William Petre. Kingsbridge was never stood for in Parliament or integrated by charter, the local government being by a portreeve. It lay within the numerous Stanborough.