All about home insulation

Loft insulation

Save up to £175 * a year off your energy bills by stopping heat escaping through your roof.

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Cavity wall insulation

Save up to £135 * a year off your energy bills. Fill the gaps in your walls to stop heat escaping.

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Installation step-by-step

It's easy to have loft or cavity wall insulation installed. Read our simple step-by-step guide of the process.

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The benefits of insulation

  • It's free to all British Gas and New Energy customers*
  • You could save up to £175 on loft insulation and up to £135 on cavity wall per year.*
  • FREE no obligation survey.
  • Quick, easy and hassle free to install.
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The benefits of insulation - 01.56

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* 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.

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