Hundreds of thousands of households are already cutting bills through ECO4. Here’s how you could too – before the scheme ends in March 2026.

Key Points:

  • ECO4 is a UK government-backed scheme worth £4 billion1
  • Upgrades are free or heavily subsidised for qualifying households2
  • Covers insulation, heating systems, and renewable options3
  • Designed to cut annual bills by up to £1,600 in some cases

Who Can Apply for ECO4?

Tens of thousands of households are already receiving free upgrades through ECO4 – but many don’t realise they’re eligible. If your home is poorly insulated or someone in your household receives certain benefits, you could qualify for support worth thousands of pounds.

Over 419,000 measures have already been installed in UK homes under ECO4, with households saving up to £1,600 a year on bills (Source: Ofgem, BEIS Statistical Release 2024).

The upgrades cover everything from insulation to boiler replacements and even low-carbon heating systems – helping you cut costs and live in a warmer, healthier home.

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What Upgrades Can You Get with ECO4?

Insulation Upgrades

Cavity wall insulation – fills the gap in cavity walls to prevent heat loss.

Solid wall insulation – for older homes without cavity walls.

Underfloor insulation – especially useful in suspended timber floor properties.

Room-in-roof insulation – for converted loft spaces.

Flat roof insulation – less common but included where applicable.

👉 These upgrades are the backbone of ECO4 and among the most widely installed measures across UK homes.

Heating System Upgrades

Boiler upgrades/replacements – swapping old, inefficient or broken boilers for A-rated models.

First-time central heating systems – if a property has never had central heating installed.

Heating controls – smart thermostats, TRVs (thermostatic radiator valves), programmers.

Storage heaters – efficient electric storage heaters in electric-only homes.

👉 Heating upgrades are one of the most effective ways to reduce fuel bills quickly.

Eco Upgrades

Air source heat pumps – increasingly prioritised, especially in off-gas homes.

Ground source heat pumps – rarer due to cost, but can be included.

Solar photovoltaic (PV) – in some cases, panels are fitted alongside insulation/heating.

Solar thermal – less common, but eligible where suitable.

👉 These renewable options support the UK’s net-zero targets and are encouraged where homes are suitable.

Why Acting Now Matters

Energy bills are still nearly 50% higher than before the 2021 energy crisis, and older homes are hit hardest. ECO4 is designed to remove the upfront cost of upgrades that would otherwise be unaffordable – making now the best time to apply.

In just one quarter of 2024, over 20,800 households benefited from ECO4 improvements such as insulation and heating upgrades. (Source: BEIS Statistical Release 2024)

The Advantages of ECO4 Support

  1. No or minimal upfront cost – measures are funded by energy suppliers if you qualify
  2. Lower annual bills – upgrades can save households £300-£1,600 every year
  3. A warmer, healthier home – reducing damp, mould, and cold-related illness
  4. Increased property value – better EPC ratings make homes more attractive
  5. Supports the UK’s net-zero targets – cutting carbon emissions nationwide
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How can I check my eligibility?

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  2. Answer a few simple questions
  3. Check eligibility for FREE!