Government grants of up to £10,000 available per household
for home improvements – limited time only!

PLEASE NOTE: We are only accepting enquiries for external wall, cavity wall and loft insulation under the Green Homes Grant – we are not able to install any other measures at this time.  Please submit your enquiry via this website or email if possible; due to exceptionally high enquiry volumes, you will then be placed on a waiting list and will be contacted as soon as possible

What is the Green Homes Grant?

This is a new scheme that will see the government fund up to two-thirds of the cost of home improvements of over 600,000 homes, improving their energy efficiency and reducing household energy bills.

All domestic properties (except new builds) qualify, including owner occupied homes or those rented from a private or social landlord. More information on the scheme can be found on the government website

What improvements are available?

Eligible improvements include solid wall, cavity wall, under-floor, loft, flat roof and room in roof insulation, and renewable heating – these are ‘primary measures’.

If you have a primary measure, you can also get secondary measures installed – these include energy efficient doors, double/triple glazed windows (when replacing single glazed windows) and draught proofing. However, the secondary measures cannot cost more than the primary measure(s).

Contact us today to register interest in the
Green Homes Grant by calling 01379 853 613
or filling in the form below...


External wall insulation (EWI) is a particularly effective energy saving measure for solid wall properties. Although it generally costs between £5,000 and £15,000, this funding could make this a very affordable investment – one unlikely to be repeated in the near future. Benefits of EWI include:

Creates a warmer and comfortable home

Significantly lowers your energy bills

Transforms the appearance of your property

Reduces external property maintenance

Prevents condensation and mould growth

Increases the value of your property

Increases sound-proofing of your property

A 25 year insurance backed guarantee

How much can I get?

The vouchers will pay for two thirds of the cost of the measure(s), up to a maximum of £5,000. 

However, owner occupier or park home households on a low income (receiving income related or disability benefits) qualify for fully funded installations, up to £10,000.


The owner of a mid-terrace house installs external wall insulation, costing around £6,000. The homeowner would contribute £2,000 and the government £4,000. The homeowner would also save around £160 per year on their energy bills and increase the potential re-sale price of their property.

How can I be sure the work is done properly?

The government will only fund work undertaken by competent and officially accredited installers, ensuring high standards and consumer protection. 

All insulation installers must be TrustMark accredited to participate in the scheme. Cornerstone has been TrustMark accredited since the outset of the scheme for a range of measures.


Why choose Cornerstone?

Cornerstone is a highly reputable TrustMark and Checkatrade accredited installer specialising in insulation and associated measures.

We have been trading since 2004 and have installed insulation in over 15,000 homes.  We will guide you through the voucher application process, ensuring you maximise the amount of funding for which you are eligible and get a high quality installation in good time.

What should I do next?

Find out more and register your interest with Cornerstone today by calling 01379 853613 or using the enquiry button to the right.

Voucher applications can be made from late September 2020.

Demand is likely to be high, so don’t delay.


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