Funding
ECO4 Funding Explained
The Energy Company Obligation (ECO4) helps eligible households upgrade their heating and insulation — here’s how it works.
What is ECO4?
ECO4 is the latest phase of the government’s Energy Company Obligation. It requires larger energy suppliers to fund energy-efficiency improvements in the homes that need them most, focusing on lower-income and less energy-efficient households.
Who is eligible?
ECO4 is generally aimed at households receiving certain means-tested benefits, or homes identified through local authority flexible eligibility (LA Flex). Properties with lower EPC ratings are prioritised.
What can it cover?
- Insulation — loft, cavity wall, solid wall and more.
- Heating upgrades, including first-time central heating and heat pumps.
- Heating controls and other efficiency measures.
Applying through Warmr
We check ECO4 and other schemes as part of your free quote, so you find out what you may be entitled to without any guesswork.
Is ECO4 still open?
ECO4 runs until 2026. As availability can change, the quickest way to check is to start a free quote and let us look it up for you.
Do I apply directly to my energy supplier?
You don’t have to. Warmr and your installer handle the process on your behalf.
Can I get ECO4 if I rent?
Some measures are available to private tenants with the landlord’s permission. We can check your specific situation.
What if I don’t qualify for ECO4?
You may still qualify for other schemes, or benefit from finance options — we’ll show you the full picture.