Cavity wall or solid wall insulation
Often the most cost-effective approach to reducing your fuel bills is to first ensure that you are not letting too much heat escape from your house.
You can lose about 35% of the heat through poorly insulated walls. For most homes that is throwing away hundreds of pounds every year.
Can you afford to keep wasting all that energy and money?
Warm Zones can offer up to 100% grants for wall insulation (either cavity wall or solid wall insulation).
These measures can save hundreds of pounds off your fuel bill each year and for decades to come.
If you install cavity wall insulation you could typically save around £160 off your annual fuel bills*
If you install solid wall insulation you could typically save over £300-400 off your annual fuel bills*
We use trusted local installers with a track record of excellent quality and customer service.
We also carry out our own, independent quality assurance checks
Does your home have a cavity wall or a solid wall?
Please see the table below to give an indication as to what types of wall your home may have (although this also depends on the type of house construction):
|Age of property||Type of walls||Action required|
|Build from 1990s onwards||Already insulated||Probably no further action needed|
|Built before 1990s but after 1920||Probably cavity wall||Ensure that cavity wall insulation is properly installed|
|Build before 1920||Probably solid wall||Consider either external and/or internal solid wall insulation|
If you can see the brickwork on the outside of your home that can also help to identify if you have a cavity wall or solid wall.
If your wall has a regular brick pattern then it will be a cavity wall.
If your wall has an alternating (long then short) brick pattern then it will be a solid wall.
Cavity wall insulation
Cavity wall insulation is usually a simple, quick and very cost-effective measure to install.
It involves drilling a set pattern of small holes in each wall, injecting in either a mineral wool
(or other material, as appropriate) and then refilling the holes.
It typically only takes 2-3 hours and involves little or no inconvenience or mess.
The cavity wall insulation also comes with a free, independent 25 year guarantee to give you even more peace of mind.
Solid wall insulation
Solid wall insulation can include adding extra insulation materials to either the outside of the walls (external wall insulation) or inside the walls (internal wall insulation).
It is considerably more expensive than cavity wall insulation and the work does take longer to complete with a bit more disruption.
However, once completed, not only will the solid wall insulation save you many hundreds of pounds each year off your fuel bill (and for 25+ years to come) but it can also improve the appearance of your home.
* Source: Energy Saving Trust, assuming a 3 bed semi-detached house with mains gas heating.
See www.energysavingtrust.org.uk for further details
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