At British Gas we are committed to helping you save energy and money. That's why for a limited period we're offering to install loft and cavity wall insulation for free.[1] Insulating your home will help keep your home warmer in winter and cooler in the summer, helping to save you money on your energy bills year after year. This offer is open to existing British Gas customers and new British Gas energy customers.

What you could save?

Type Savings in £ Savings in CO2
Cavity wall insulation Up to £135 every year[2] Around 550kg every year
Loft insulation Up to £175 every year[2] Around 720kg every year

What does it involve?

It’s straightforward and takes less than a day. Loft insulation is a thick material simply rolled onto the loft floor. Cavity wall insulation is filling blown into the gap between your exterior wall. There’s little fuss or mess so you can get on with your daily routine.

How do I qualify for free[1] home insulation?

Just give us a call and we’ll arrange for an Energy Expert to come around to your home and carry out a free no obligation survey. All you have to do is set aside time for us to do the work.

British Gas customers

  • To register for free cavity wall and loft insulation, either call us or arrange a call back.
  • Our call centre advisor will then take you through the details of the offer and arrange a suitable date for a free no obligation survey of your home.
  • If you are eligible, installation is quick, easy, no mess - and takes less than a day to install.
  • Limited availability - Apply before 31st July 2012.
  • Our free insulation offer is subject to the results of your survey. 
  • Terms & conditions apply

70 or over, or on benefits

  • Attendance allowance
  • Child Tax Credit (where the relevant income is £16,190 or less)
  • Council Tax Benefit
  • Disability Living Allowance
  • Disablement Pension (that includes a constant attendance allowance)
  • Housing Benefit
  • Income Support
  • Income-based Job Seekers Allowance
  • Income-rated Employment and Support Allowance
  • State Pension Credit
  • War Disablement Pension (that includes either a relevant mobility supplement or constant attendance allowance)
  • Working Tax Credit (where the relevant income is £16,190 or less)
  • Terms & conditions apply

To insulate your home request a call back or call us on 0800 077 3717

You may also be interested in

Loft insulation

Save up to £175 a year on  your energy bills with loft insulation.
Find out about insulation

Cavity wall insulation

Save up to £135 a year with cavity wall insulation which is proven to reduce heat loss.
Find out more

[1] British Gas install in mainland Great Britain only. Not all homes are suitable for insulation. Offer available to existing British Gas customers and new British Gas energy customers who apply by 31st July 2012. There is no registration or installation deadline for anyone 70 or over or on eligible benefits. Limited availability. For all other customers, installation must be completed by 31st December 2012. Customers will only be eligible for the free loft and cavity wall measures recommended by appointed surveyor. Customers will only be eligible for free measures where we can insulate a minimum of two thirds of the total loft space or total wall space (when applied to the whole property). Free insulation is subject to square meterage limitations. Insulation beyond these limits is chargeable. For loft insulation, offer only applies where the thickness of existing insulation is less than 60mm. Offer excludes scaffolding, vents and any specialist equipment. Tenants must seek landlord permission. Offer only applicable to residential properties and excludes all other properties including without limitation commercial or part commercial premises. The Offer is subject to availability and subject to change or withdrawal at any time including, without limitation, where the supply or installation of loft  and/or cavity wall insulation (the "Products") does not qualify for carbon emissions credits for the purpose of the Carbon Emissions Reduction Target (or any replacement scheme) or if the amount of carbon emissions credits for which the Products qualify is materially reduced. Offer cannot be used in conjunction with any other offer.

[2] Savings figure source www.energysavingtrust.org.uk/Energy-saving-assumptions, February 2012. Actual savings depend on individual circumstances.