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Cardiff Energy Saving Grants


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To find out which Cardiff energy saving grants are available just fill in your details and we'll call you back to help.


Welcome to Cardiff Energy Saving Grants

External Wall Insulation (which is also known as Solid Wall Insulation) is the best way to insulate your property, whilst also helping to prevent damp and condensation problems at the same time.

External Wall Insulation (EWI) has been utilised in many European countries for over 60 years, including Germany, Norway, Sweden, Finland, Denmark, Poland and Ukraine. However, it has only become widely used in The UK since 2010, when the UK building regulations were updated to ensure that the external walls of a property are insulated every time more than 25% of a wall is rendered (Part L1B Conservation of fuel and power in existing dwellings, Building regulations 2010).

One of the most popular areas in the UK for External Wall Insulation is Cardiff due to buildings in the city being relatively exposed to westerly winds and driving rain, blown in from the Bristol channel. A relatively high percentage of properties in Cardiff and the surrounding areas in Glamorgan have suffered from damp and condensation problems, associated with failed cavity wall insulation due to it being installed in houses that simply weren’t suitable for cavity wall insulation due to the walls being exposed to a lot of rain.

The advantage of External Wall Insulation is that the walls are rendered after the insulation has been installed, thereby waterproofing the house.


The installation of External Wall Insulation is effectively creating a new wall on the outside of your property, helping to protect the original walls.


Some large scale social housing installations of EWI in the area include Trowbridge, Rumney and Llanedeyrn in Cardiff; Lansbury Park in Caerphilly, Gibbonsdown in Barry, as well as many other large EWI regeneration schemes in Merthyr Tydfil, Bridgend, Pontypridd and Llantwit Major in the Vale of Glamorgan.


A high percentage of privately owned properties have also decided to invest in External Wall Insulation in Grangetown, Splott, Roath and Fairwater; as well as in neighbouring towns including Penarth, Llantrisant, Caerphilly and Porthcawl.

We can help secure you the limited funding which is available for houses in Cardiff and surrounding areas, that would benefit from the huge energy savings associated with the installation of External Wall Insulation.

We have recently helped individuals obtain grant funding, to help towards the cost of External Wall Insulation, in areas near Cardiff including Bridgend, Barry, Aberdare, as well as more rural areas including Brecon and Cowbridge.


Contact us whilst funding is currently available and discover which grants are available in Cardiff and surrounding areas. You can speak to one of our grant funding advisors now by calling 0330 223 0333 or alternatively request a Free Call Back

External Wall Insulation (EWI) Grants in Cardiff

We can secure the limited Cardiff EWI funding which is available allowing you to benefit from potentially massive energy savings due to External Wall Insulation, or EWI, installation on your Cardiff property. Contact us urgently, as funding is limited, and we can tell you which grants are available in the Cardiff area. EWI grants in Cardiff are literally "here today, gone tomorrow" so act fast before Cardiff funding expires. 

Before EWI Cardiff

Before EWI Cardiff

After EWI Cardiff

After EWI Cardiff

Before EWI in Cardiff

Before EWI in Cardiff

After EWI in Cardiff

After EWI in Cardiff

Before Cardiff EWI

Before Cardiff EWI

After Cardiff EWI

After Cardiff EWI

As well as providing excellent advice, they also managed to help me get some grant funding towards the cost of the loft and external wall insulation, as well as arranging for me to receive payments in the form of a FIT and a RHI for the solar panels and heat pump. I would recommend them to anybody looking for help with making your home more energy efficient  Rhys Moores

Thank you very much indeed for providing me with the grant funding for the External Wall Insulaion for my house. My house is so much warmer and is the envy of my neighbours. I have passed your details to my neighbours and I think the whole street will be wanting it done.

Mr. Price, Swansea

I am deeply indebted to you for my new windows and doors. They are a huge improvement on my old, single glazed windows and I have noticed the difference already - my home is so much warmer. Plus I haven't got any frost on the inside of my windows any more!

Mr Walker, Easton, Bristol

Energy Saving Grants arranged for me to get help towards the cost of having my house insulated. My house is now so much warmer and looks a lot better too! I would definitely recommend them to anyone.

Holly Hackett

My house is now warm and comfortable for the first time since moving here 18 months ago. I recommend them to anybody looking to save money on their energy bills and make their house more energy efficient.
Audra Reid


To find out which Cardiff energy saving grants are available just fill in your details and we'll call you back to help.

Energy Saving Grants is an official partner of One Tree Planted (https://onetreeplanted.org). Energy Saving Grants fund the planting of hundreds of fruit trees in Ethiopia, which helps local communities; as well as reducing carbon dioxide emissions.  

More information on the various Government grant funding schemes is available on the following Government websites:



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Before EWI Cardiff

Before External Wall Insulation