If your home is uninsulated, you are losing heat that can easily be prevented. Approximately 25% is lost through the roof alone with a further 35% lost through the walls.

Need advice on grants, finance and arranging your move to lower heating bills? Our dedicated customer support team are on hand to help.

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Cavity Wall Insulation

If your home was built after 1920, the chances are that its external walls are made of two layers with a gap or cavity between them. Cavity wall insulation fills that gap, keeping the warmth in to save energy

  • Quick and easy to install, minimal fuss, can be installed in less than 2 hours
  • you could save up to £150 per year in heating bills just from insulating the walls
  • Check if you can get a 100% free insulation grant.

Ask now about Cavity Wall Insulation

Order Options – Pay in full, Finance or Energy Company Grant

Let SM4U Advisers discuss the best options for you.

Take advantage of our

Finance Packages

  • No Deposit required
  • Low monthly payments
  • 9.9% APR

More info

Check, how much grant do I qualify for?

Up to 100% Grant

  • Do you Claim Benefits?
  • HomeOwner / Tenant?
  • Area you live in

More info

We offer a range of competitive finance options from 9.9% APR to suit every budget. Whether you have a deposit or not, you can spread the cost over 3, 4, 5 or 10 years, so your payments are manageable and suit your lifestyle.

All our finance options are considered on an individual basis.

SM4U Ltd is a credit broker for Hitachi Personal Finance. Credit is provided by Hitachi Personal Finance, a division of Hitachi Capital (UK) PLC authorised and regulated by the Financial Conduct Authority.

Please get in touch to find out more

3 simple steps to your new Cavity Wall Insulation

Step 1

Contact us


Step 2

  • Our heating adviser reviews your needs
  • Confirm what (if any) grant funding is available
  • Take your order (subject to survey)
  • Arrange survey and installation

Step 3

Survey and Install your system


Why choose SM4U Ltd?

  • Save money
  • Up to 100% grant support or No deposit finance (subject to status)
  • Quick and easy service
  • Up to 12 years warranty/guarantee
  • Local, regional experts