If you are over 70 or in receipt of certain benefits, people can qualify for free cavity wall and loft insulation - regardless if an npower customer or not. There are no charges for surveys or call out fees. npower customers who do not qualify for free home insulation can purchase it at a greatly reduced price - from around £199 (RRP c £500).
We are insulating around 100 homes per hour on every working day. We are spending over £100m each year helping our customers to reduce the amount of energy they use. No other industry in Britain does as much to help its customers to use less of its product.