npower
Insulation offer
In celebration of E-Day, npower has some great offers on insulation for your home, which could really help you do your bit!
Not only that but installing both cavity wall insulation and loft insulation, but the Energy Saving Trust has calculated that you could save up to £200 a year on your energy bills!
Here are our guide prices:
Cavity Wall Insulation
| npower customers | non-npower customers | |
| Mid-terraced house (2 bed) 55m2 | £150 | £240 |
| Semi-detached house (3 bed) 90 m2 | £150 | £419 |
| Detached house (4 bed) 140 m2 | £150 | £629 |
Loft insulation
| npower customers | non-npower customers | |
| Mid-terraced house (2 bed) 55m2 | £150 | £320 |
| Semi-detached house (3 bed) 90 m2 | £150 | £365 |
| Detached house (4 bed) 140 m2 | £150 | £420 |
Please call one of our helpful staff to apply. Your details will then be passed to an approved contractor who will contact you to arrange a convenient time to survey your home for free.
Eligibility for free insulation
You may be eligible for free insulation if you or someone you live with, is over 70 years of age or is in receipt of one or more of the following:
- Council Tax Benefit
- Housing Benefit
- Income Support
- Income-based Jobseeker’s Allowance
- Attendance Allowance
- Disability Living Allowance
- War Disablement Pension which includes either a Mobility Supplement or Constant
- Attendance Allowance
- Disablement Pension which includes Constant Attendance Allowance
- State Pension Credit
- Child Tax Credit where the relevant annual income is £15,592 or less
- Working Tax Credit where the relevant annual income is £15,592 or less.
Terms and conditions
All prices shown are guide prices and may vary after a survey of the property.
All prices are quoted inclusive of VAT and CIGA guarantee where applicable.
The offer cannot be used in conjunction with any other offer or incentive from any other energy supplier.
The offer is only available in the UK (excluding Northern Ireland) and to home owners or those who rent from a private landlord. The offer is not available to those who rent from a social housing provider.
npower does not warrant or represent and is not responsible for the quality, fitness for purpose or otherwise of loft insulation and cavity wall insulation.
All loft and cavity wall insulation is supplied by a member of the InstaFibre Consortium with whom any agreement for the purchase of relevant insulation is made. npower is not responsible for and is not liable for or in connection with the installation of the insulation nor the actions or omissions of any installer.
The offer is limited and subject to availability.
Contact telephone
0845 602 4696 quoting mediacode “E-day”
Lines are open Monday to Friday 8am - 6pm
Calls may be monitored and recorded for training and security purposes. Calls from BT landlines will be charged up to 5p per minute. The price of calls may vary with other operators. Please check with your operator for exact charges.
Insulation offer explained
Frequently asked questions


