Insulating your loft is a simple and effective way to reduce heat loss and reduce your heating bills.
Heat rises, and in an uninsulated home, a quarter of heat is lost through the roof. Insulating your loft is a simple and effective way to reduce heat loss and reduce your heating bills.
Heat rises, and in an uninsulated home, a quarter of heat is lost through the roof. Insulating your loft is a simple and effective way to reduce heat loss and reduce your heating bills.
If you have loft insulation that was installed some time ago, it’s probably thinner than specified by modern building regulations. You could benefit from increasing its thickness by having a ‘top up’ layer installed. The current recommended depth for mineral wool insulation is 270mm.
Loft insulation is simple to install and effective for at least 42 years and it should pay for itself many times over.
Keep heat in the home rather than losing it through the roof.
Reduce utility bills – save up to £240 a year.
Save up to 990kg per year of carbon emissions.
An eligible measure for ECO funding.
Substantial savings on your energy bills.
Warmer home during the winter months.
Helps reduce condensation.
Increases the value of your property.
The table below is an estimate based on insulating a gas-heated home with a totally uninsulated loft.
| Loft insulation (0 to 270mm) | Detached house | Semi-detached house | Mid terrace house | Detached bungalow |
| Fuel bill savings (£/year) | £240 | £140 | £135 | £200 |
| Typical installation cost* | £395 | £300 | £285 | £375 |
| Carbon dioxide savings (kgCO2/year) | 990 kg | 580 kg | 550 kg | 820 kg |
The table below is an estimate based on insulating a gas-heated home by topping up existing insulation from 120mm to 270mm.
| Loft insulation top up (120 to 270mm) | Detached house | Semi detached house | Mid terrace house | Detached bungalow |
| Fuel bill savings (£/year) | £25 | £15 | £15 | £20 |
| Typical installation cost* | £310 | £250 | £240 | £295 |
| Carbon dioxide savings (kgCO2/year) | 95 kg | 55 kg | 50 kg | 80 kg |
If the loft is only partially boarded, we can insulate in between the boards, where the joists are exposed.
If the loft is fully boarded and you don’t need to keep the boards, then you can remove them and we can fit the insulation.
Around 990kg per year if you have no insulation at all. If you already have 100mm of insulation, you will still save around 95kg per year by upgrading.
We usually install mineral wool insulation. Mineral wool is a non-metallic, inorganic product made from a mix of raw materials, of which the biggest ingredient is either rock or silica. Modern mineral wool is soft to the touch, unlike earlier rough materials which could cause skin irritation.
The energy conserved by insulating a house far outweighs the energy used in making the insulation material. Of all the actions you can take as a householder, insulation has the greatest potential for reducing CO2 emissions.
If rolls won’t fit between your joists, we pour loose-fill insulation between the joists.
No.
