Home Insulation Grants for professionally installed home Loft Insulation and Cavity Wall Insulation

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The grant scheme advertised on this web site has now ended. A new scheme has started recently, details of which can be found on our main Free Insulation site: Click here to find out more.

Professionally Fitted Cavity Wall Insulation, With A Grant

For a limited time only, Insulation Grants are available to cover the full cost of having Cavity Wall Insulation professionally installed if you are aged 70+ or receiving benefits. Don't delay, Apply Now.

Grants of up to 70% are available to anyone else, regardless of age or income. This typically leaves £99 to £199 to pay.

It is not possible to install Cavity Wall Insulation yourself as it requires specialist equipment and knowledge. The only DIY option is to line the inside of your walls with an insulating material. This is a big job that would require internal re-decoration. External Wall Insulation is also possible, but again it is a specialist job and Cavity Wall Insulation Costs are extremely prohibitive. The only sensible option if you have cavity walls is to have them professionally insulated and claim a Government-backed Grant to substantially reduce the cost.

Mineral Wool, Blown Into Gap Between The Brickwork

Cavity Wall Insulation is installed by drilling holes about the same size as a 20p piece in between the T-joints of the brickwork. The holes are typically spaced at 1.5m apart in a diamond pattern from the ground floor to the roof. Shredded mineral wool is then blown into the cavity through each hole until it reaches the correct density. The machine will then cut off and the wool is blown into the next hole until the cavity is completely filled.
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  • Fitted by approved local Insulation Installers
  • Government Grants for all homeowners and private tenants
  • Shredded mineral wool/glass fibre insulation
  • Blown into the gap between two layers of bricks
  • Installed from the ground floor to the roof
Cavity Wall Insulation is the most effective way of reducing heat loss in your home. Up to 35% of your heat can be lost through the walls if the cavity is not insulated. This is more heat than is lost through the loft because even though heat rises, the walls tend to have a greater surface area for heat to escape. Filling the cavity with an insulating material helps to stop this heat loss and could save you up to £135 per year on your heating bills. As with Loft Insulation, your heating does not need to be turned on so often and can be left on for shorter periods.

Insulating the cavity will make you warmer during the Winter months and help to keep you cool throughout the Summer. Because you are cutting down the amount of fuel used to keep you warm, carbon emissions are significantly reduced. The average property that has Cavity Wall Insulation fitted can cut CO2 emissions by 610kg. It can also help to cut down on condensation building up on internal wall surfaces.
  • Prevent up to 35% of heat loss through the walls
  • Save up to £135 per year on your heating bills
  • Keeps your home warmer in Winter
  • Helps you stay cooler in Summer
  • Reduce CO2 emissions by up to 610kg
  • Increase the value of your home
  • Help prevent condensation in your home
The first and most important point to consider is whether your home actually has cavity walls. Generally, properties built of brick from 1924 onwards should have a cavity. Houses built of brick before this time are likely to have solid walls. If you can see any square brick ends in the pattern, then the walls will be solid. Another way to tell is by measuring the thickness. A cavity wall will be at least 10 inches thick. Anything less is most likely to be solid.

In 1976 the building regulations changed so that after 1982, all new homes had to have Cavity Wall Insulation installed at the time of build. If your home was built after 1982 you should be sure that it has not already had Cavity Wall Insulation. If you cannot ask the builder, a good way to be sure is to ask your neighbours.

Cavity Wall Bricks
A detailed survey must take place before Cavity Wall Insulation can be installed but there are a few basics you can check before arranging a survey. Providing your home actually has cavity walls that have not been filled before and the walls are dry and free of debris, then we should be able to help. Possible problems include the following:

Reasons Why Cavity Insulation Might Not Be Possible :

  • There is no cavity (must be brick built between 1924 and 1982)
  • Property is timber or steel framed construction
  • The cavity is filled (we can't top it up or fill patches)
  • The walls are damp (this must be rectified first)
  • You live in a flat and neighbours above/below don't agree
  • Cavity width is less than 50mm (2 inches)
  • There is rubble present inside the cavity
  • Ventilation is poor and a vent cannot be fitted
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Who qualifies for Cavity Wall Insulation Grants?

Two types of Grant are available for Cavity Insulation to homeowners and private tenants. The Grants are arranged by approved Insulation Installers and they do not have to be paid back.

- 100% FREE Insulation Grants
  Available for a limited time only to private households where anyone is aged 70 and above or in receipt of qualifying benefits, tax credits or allowances.
- 40% to 70% Insulation Grants
  All homeowners and private tenants in the UK will qualify for at least a 40% Insulation Grant, typically leaving just £99 to £199 to pay for each type of insulation.
Save up to £175 per year
on your heating bills
by having Loft Insulation
professionally fitted in your home
Save up to £135 per year
on your heating bills
by having Cavity Wall Insulation
professionally fitted in your home