Insulation

The better insulated your home the less energy you need to keep it warm and the more you’ll save.
A third of the heat lost in an uninsulated home is through the walls, so insulating them now can be one of the most cost-effective ways to help slash your bills by as much as £110 a year.
Cavity wall insulation is one of the most cost-effective measures you can take and can slice about £115 a year off your heating bill, according to the EST. However, the initial outlay can be about £500. Loft insulation is a simple job that can cost about £250 to fit and then save up to £150 per year. The recommended thickness is 270mm.

There are grants to help with the cost of insulation

About 18 per cent of a home’s wasted heat is lost through its windows, so getting double glazing is another effective energy-saving improvement.

If single glazing is replaced with double glazing you should be able to save about £135 a year in an average property.

Badly fitting doors and windows can be sealed with draught-proofing strips or draught excluders at a cost of up to £200 for savings of around £25 a year.