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.
Sawbridgeworth
Sawbridgeworth is a village and civil parish in Hertfordshire, England, near to the border with Essex. It is 12 miles (19 km) east of Hertford as well as 9 miles (14 kilometres) north of Epping. Underlying the community at some depth is the London Clay stratum, with a thick layer of Boulder clay put down throughout the ice ages, including the Anglian. The soil on top of this is a loam, with erratics of Hertfordshire puddingstone corporation located around the town. Sawbridgeworth is regulated by Hertfordshire Area Council, in addition to being part of East Hertfordshire District Council. Hertfordshire has a two-tier system of administration, with a county council and also district councils. The town council currently has 12 councillors, covering both Sawbridgeworth as well as Spellbrook. Sawbridgeworth has its very own on-call station house, positioned in Station Road. It becomes part of Hertfordshire Fire and Rescue Service. Sawbridgeworth has actually been twinned with Bry-sur-Marne in France because 1973. In Parliament, it is in the Hertford and Stortford constituency. Given that the political election of May 2005 Sawbridgeworth is stood for by Mark Prisk, a Conservative. The village of Lower Sheering, across the area boundary in Essex, joins Sawbridgeworth, east of the train terminal as well as the River Stort. It has Sawbridgeworth postal addresses but also for city government purposes remains in the Epping Forest district of Essex.