Floor insulation can prevent draughts and heat leaks from under your floor. You can apply a regular tube sealant to any gaps (like the type you use around your bath) or if you have access under the floor (through the cellar for example).
Another option is to take your floorboards up as it is worth insulating underneath on the ground floor. Remember not to block any under floor airbricks in your outside walls as the floor space needs adequate ventilation.
Prices and Payback Time for Floor Insulation
| Under floor* | Filling gaps between skirting board and floor* |
Cost (DIY) | From £100 | Around £25 |
Annual Saving on fuel bills | £15-£25 | £5-£10 |
Cost recovered | 4-7 years | 3-5 years |
*all information is based on a gas heated 3 bedroom semi detached house. Figures from Energy Saving Trust
