Loft insulation can save up to 25% on your heating costs. The recommended thickness of loft insulation is currently 250mm (10"). You can install loft insulation yourself or use a professional installer.
It is important to leave a gap around the eaves when you insulate as the loft needs to be ventilated to stop condensation forming. Remember to draught proof the loft hatch as well to stop draughts entering your home.
Price and Payback Time for Loft Insulation
| Adding 200mm to existing 50mm of loft insulation* | loft insulation where none at present* |
Cost of fitting | £225 (installer)
From £140(DIY) | £75-135 (installer)
From £170 (DIY) |
Annual saving on fuel bills | £30-40 | £80-100 |
Cost recovered | 5-7years (installer)
5 years (DIY) | 1-2 years (installer)
Around 2 years (DIY) |
*all information is based on a gas heated 3 bedroom semi detached house. Figures from Energy Saving Trust
