Insulation Frequently
Asked Questions

Cavity Wall Insulation FAQs

What is a cavity wall?
Most modern houses have two external brick walls with an air-gap in between them. Although air acts a natural insulator, it is not as effective as the insulation material now used to insulate houses.

How do I know if I have cavity walls?
If your house was built after 1920 it is very likely that it has cavity walls. It is possible older properties could have a cavity – Please contact us for a FREE survey. An easy way to tell is to measure the thickness of your external walls by looking at a window or doorway. A cavity wall will be at least 260mm thick.

What is cavity wall insulation?
Properties that have a cavity in between could be suitable to be insulated.  Cavity wall insulation fills that gap, keeping the warmth in to save energy. It can also help reduce condensation inside the house if this is a problem stemming from your external walls.

Why is it free?
The government have committed to a target of cutting carbon emissions by 80% by 2050. One of the simplest ways to do this is to reduce the amount of energy we use in our homes. At the moment, the government have made funds available to insulate any house with cavity walls that are classed as ‘easy-to-treat’ for free. If your cavities are empty, We will fill them.

I have cavity walls — how do I know if they are already insulated?
Houses built from the 1990’s onwards were meant to be built with insulation material in the cavity wall, however properties built up to 2005 are still found to have been built without insulation. If your house was built between 1930 and 2005, and none of the previous owners have had insulation installed, it probably has empty cavity walls. If you are unsure, one of our trained surveyors can inspect your walls.

How is the insulation installed?
Our installers J&J Crump & Sons will drill a few small holes (22mm) into your outside walls, in the mortar between the bricks. A machine is then used to inject the insulation material into the walls. Once the process is complete, the holes are filled.

How long does it take to install?
For a typical 3 bedroom semi-detached house, the installation will take 2-3 hours.

How long will the insulation last?
For the lifetime of the building, as stated by the British Board of Agrément.

I rent my house — can I still get free insulation?
Yes, as long as we have permission from your landlord.

Loft Insulation FAQs

What is loft insulation?
Loft insulation is made from man-man mineral fibre usually made from silica sand, and has a wool-like appearance. It is supplied in rolls sealed in plastic packaging.

How long does loft insulation last for?
Loft insulation does not require any maintenance and should last indefinitely.

Why is it free?
The government have committed to a target of cutting carbon emissions by 80% by 2050. One of the simplest ways to do this is to reduce the amount of energy we use in our homes. At the moment, the government have made funds available for certain households to have their home insulated for free.

How long does it take to install?
A typical loft takes around 1 – 2 hours to insulate.

I rent my house — can I still get free insulation?
Yes, as long as we have permission from your landlord.

Boiler Installation FAQs

Will I be eligible for a free boiler?
You need to own your own home, or have a private landlord (if you rent).
·        Your current gas boiler must be inefficient, for example if it’s 8 years old or more. If your boiler is already energy efficient, you won’t see any real improvement.
·        You may be eligible for a free gas boiler if you are on certain benefits, however this depends on how much funding the survey on your property generates;

Benefits that may qualify are;

You or someone in your household may qualify if you receive:

·        State Pension Credit
·        Income Support as well as:
·        having parental responsibility or
·        receiving one of: child tax credit with a disabled element or disability premium or disability child premium or pension.
·        Income Based Jobseeker’s Allowance as well as:
·        having parental responsibility or
·        receiving one of: child tax credit with a disabled element or disability premium or disability child premium or pensioner premium.
·        Income Related Employment and Support Allowance as well as:
·        having a work-related activity or support component or
·        having parental responsibility or receiving one of: child tax credit with a disabled element or disability premium or disability child premium or  pensioner premium.

If you have an income less than £16,010 per year, not including benefits and you receive:
·        Child Tax Credit
·        Working Tax Credit as well as:
·        having parental responsibility or
·        in receipt of a disability element or
are aged 60 years or older.

If you receive Universal Credit and your monthly earned income, in any twelve preceding assessment periods, does not exceed £1,250 as well as:
·        having parental responsibility or
·        has limited capability for work or
receiving one of: a disability living allowance or personal independence payment.

Parental responsibility includes being responsible for a child under 16, or between 16 and 20 in full time education who resides with you.

 

Find out if you’re eligible for our Free insulation improvement scheme…