hi

after a bit of advice, my parents live in a mid terraced 5 floor 1850's London house it has 4 bed rooms but the top floor is not in use, the basement is the kitchen and dinning room next to a cellar there are 7 usable fireplaces which 2 are used about half a dozen times per year all windows are single thin glass and the ceilings are high. Last year a new boiler was fitted with digital timer all new rad thermos and new hot water tank. Door and window draught proofing and all new insulation.

They are with BG and are paying over £3000 pa and Eon electricity at £1000 a new gas meter was fitted 2 years ago. Why is it so high and can I get them down.