90% of homes needing insulation will now get it free!

Heat rises, and in an uninsulated home, a quarter of heat is lost through the roof. Insulating your loft, attic or flat roof is a simple and effective way to reduce heat loss and reduce your heating bills.

Loft insulation is effective for at least 42 years and it should pay for itself many times over.

Why your home could be one of the millions more now eligible:
  • Eligibility is based on your home, not your income.
  • Your home could qualify, whether you own or rent it.
  • You don’t have to be an Energysave Nationwide customer, or buy any other products and services from us.

How much you can save

England, Scotland and Wales

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
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

Estimates based on insulating a gas-heated home with either a totally uninsulated loft, or topping up existing insulation from 120mm to 270mm. (The recommended depth for mineral wool insulation is 270mm but other materials need different depths). *Average unsubsidised professional installation costs, although these will vary.

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