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Warm Homes Programme

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Welsh Government Warm Homes, which includes the Arbed and Nest schemes, provides funding for energy efficiency improvements to low income households and those living in deprived communities across Wales.

It supports our commitments to:

  • reduce climate change, 
  • help eradicate fuel poverty,
  • boost economic development and regeneration in Wales. 

Both schemes consider a whole house approach to home energy efficiency improvements. This helps to tackle harder to treat homes where the impact of fuel poverty tends to be most severe.

Since 2012, we have invested over £150 million and improved over 27,000 homes, reducing energy bills and helping households to heat their homes at a more affordable cost. 

In 2015 – 16 the Nest scheme received £25.5 million and improved 6162 homes.  Arbed received £19 million and improved 1971 properties.

Cold calls warning

We have been made aware of a company who are currently cold-calling members of the public and organisations. They claim to be offering free boliers through the Welsh Government Warm Homes’ Nest scheme.

Our Welsh Government schemes, Nest and Arbed, do not cold call or require any up front payment from the home owner. We have contacted the relevant agencies in order to begin procedures to stop this company using the Nest scheme name fraudulently.

If you would like free energy advice or to check if you are eligible for a package of free Nest home energy improvements – please contact us directly via the Nest Website (external link) or Freephone 0808 808 22 44.


Arbed has two delivery approaches. One is the EU funded element of the scheme which has been delivered for Welsh Government by procured scheme managers.  The other is through us continuing to provide grant funding to local authorities, to enable them to manage energy efficiency schemes in their areas.

Retro-fitting measures and technologies considered under Arbed include: 
  • Solid wall insulation,
  • Loft insulation and draught proofing,
  • Boiler and heating system upgrades (controls),
  • Heat pumps,
  • The provision of energy saving advice.
Since 2012 over 60 schemes have been delivered under both parts of Arbed, creating over 1,000 local jobs and exceeding our targets for reducing greenhouse gas emissions and reducing the impact of fuel poverty on households in Wales.

Community Benefits

The schemes have a strong emphasis on the delivery of community benefits by using the local supply chain, providing job growth and engaging with the communities and schools in the areas. See the links for some Arbed case studies.  

The Future

We will continue to support local authorities by providing grant funding for them to manage Welsh Government Warm Homes energy efficiency projects in their areas. 

We are also working on the next phase of the Arbed European Regional Development Fund (ERDF) funding.


The Nest scheme (external link) provides householders living in Wales with access to free advice and support to help them reduce their energy bills. Those meeting Nest’s eligibility criteria can access a free package of energy efficiency measures. Further details can be found by calling the Nest helpline Tel: 0808 808 2244

Nest measures are designed for individual properties so there is no standard package. Measures can include:

  • a new gas boiler,
  • central heating system,
  • insulation,
  • newer technologies such as air source heat pumps.  
This scheme does not include windows and doors.

British Gas is the scheme manager for Nest .The Energy Saving Trust is a sub-contractor to British Gas and provides the front end service. Small and medium sized enterprises across Wales are sub-contracted by Nest to install agreed energy efficiency measures at domestic properties. The Nest scheme does not cold call households and all marketing materials carry the ‘Nest’ and Welsh Government logos.

The contract for the Nest scheme ends on 31 August 2017. The 12 week public consultation period for the Nest scheme replacement is now closed and our response to the public consultation was published 23 December 2016.