If your property is not properly insulated, you could be losing up to one-third of the heat through the walls, roof and floors. This means that out of every £3 that you are spending on insulation, £1 is being lost. Properly insulating your property will mean that less energy is lost, therefore less energy is needed to maintain the same temperature levels within the property.
Insulating your property should therefore result in a reduction in your annual gas and electricity bills.
As a result of the Energy Company Obligation, almost all utility companies run discount schemes to encourage their customers to install loft and cavity wall insulation. Therefore it is probably best to contact your energy supplier in the first instance.
Alternatively, you can visit the grants and loans section of the Energy Saving Trust website, which provides details of all grant schemes currently operating in your area.