Sustainable warmth

Sustainable Warmth is a new government grant scheme designed to fund energy-efficiency upgrades to residents who are most likely to be impacted by the high cost of rising bills. These improvements will help residents to use less energy and spend less on their energy bills.

How it helps:

  • energy saving tech and upgrades installed by approved installers
  • creating warmer, healthier homes
  • helping to cut carbon emissions
  • funding available for homes on and off the gas grid

The grant will cover a range of energy-saving home improvements designed to balance the needs of residents with carbon reduction and grant availability.

Eligible energy saving improvements:

  • Insulation and ventilation upgrades
  • An upgrade to a low carbon heating system (the new heating system cannot include a gas or oil boiler)
  • Heating controls
  • Solar PV (that generates free electricity)
  • Energy efficient lighting

The funding

EON is the supply partner and will manage the process and the contractors undertaking the work are either Baxter Kelly and IZ Energy.

The exact amount and eligible works available is dependent on the Energy Performance Certificate (EPC) and the fuel source that heats the home currently (the EPC can be determined by the programme if it is unknown).

Privately rented properties

To qualify the tenant must meet the income eligibility and the landlord will need to contribute a minimum of one third towards the cost of the upgrades in addition to the grant provided.

If overall costs exceed the maximum grant available, additional investment by the landlord will be required.  Costs and the contributions expected from the landlord will be agreed prior to commencement of work.


  1. The household must be a private domestic dwelling in England with an Energy Performance Certificate (EPC) rating of E, F or G.  If your property’s EPC is unknown, it can be determined by the programme.  To check your EPC rating visit Find an energy certificate on GOV.UK, and
  2. The household must have either:
  • a household income of no more than £30,000 (before tax or any other deductions)
  • an income where cost of living is below £20,000 (i.e. after rent or mortgage costs), or
  • a household composition (e.g. number of dependents) which stretches income to a position where they would be in fuel poverty.

Please check your eligibility through the online application form.

If you prefer to phone, please call EON on 0333 202 4859.