The UK government’s ECO4 Scheme is one of the most important energy-efficiency programmes running from 2022 to March 2026. Designed to support low-income households, fuel-poor families, and vulnerable residents, the scheme provides free boilers, insulation, and heating upgrades. The aim is simple: reduce energy bills, improve home comfort, and cut carbon emissions in line with the UK’s net zero 2050 target. At Reliant Energy Solutions, we specialise in helping households across England, Wales, and Scotland check their eligibility, apply for ECO4 funding, and arrange installations through TrustMark-accredited professionals.
What is the ECO4 Scheme?
The Energy Company Obligation (ECO) scheme requires large UK energy suppliers to fund energy-saving home improvements. ECO4 is the fourth phase, launched in 2022 with a stronger focus on:
- Supporting low-income households
- Tackling fuel poverty
- Delivering whole-house energy efficiency upgrades
- Replacing old, inefficient boilers and heating systems
This scheme is regulated by Ofgem and supported by local councils through LA Flex, ensuring more households can qualify.
What Can You Get Under ECO4?
The scheme provides a range of energy-saving upgrades, such as:
- Free boiler replacements for broken or inefficient models
- Loft insulation to reduce heat loss
- Cavity wall insulation to improve thermal efficiency
- Solid wall insulation (internal or external)
- Heating controls (smart thermostats, TRVs, timers)
- Air source heat pumps in eligible homes
With Reliant Energy Solutions, we guide you through choosing the right upgrades for your property type.
Who Qualifies for ECO4?
To qualify, households generally need to meet at least one of the following criteria:
- Receive benefits like Universal Credit, Housing Benefit, Pension Credit, Child Tax Credit, or Income Support.
- Low household income (typically under £31,000 annually).
- Poor EPC rating (E, F, or G).
- Referred through the Local Authority Flexible Eligibility (LA Flex) route, which helps households with:
Fuel poverty
Health conditions made worse by cold homes (e.g., asthma, arthritis, cardiovascular disease)
Vulnerable family situations.
Why ECO4 Matters in 2025
Energy costs in the UK remain a pressing issue. Even with Ofgem’s energy price cap, many households struggle to keep up with bills.
The ECO4 scheme ensures that:
- Families can stay warm in winter without overspending.
- Homes become more energy efficient for the long term.
- Carbon emissions are cut, supporting the UK’s climate goals.
For example, installing loft insulation alone can save an average UK household £300 annually on bills.
Local Authority Role in ECO4
Local councils across the UK play a big part in ECO4 via the LA Flex scheme.
Examples of local authority participation:
- Manchester City Council – actively supporting vulnerable households.
- Birmingham City Council – working with energy providers to identify eligible residents.
- Cardiff Council – extending insulation measures through LA Flex routes.
Reliant Energy Solutions works closely with these local authorities to ensure smoother applications.
ECO4 and Property Types
The scheme is not limited to homeowners it covers:
- Owner-occupied homes – majority of upgrades.
- Private tenants – landlords can benefit from improved EPC ratings.
- Social housing tenants – in partnership with housing associations.
Funding and Installations
ECO4 is fully funded by energy suppliers, but you need an approved installer to access grants.
Reliant Energy Solutions ensures:
- Free eligibility checks
- No-obligation home survey
- Applications handled start to finish
- TrustMark-accredited installers
- Fast installation process
Don’t miss out on ECO4 funding. Contact Reliant Energy Solutions today for boiler upgrades, insulation grants, and heating improvements across the UK.
ECO4 vs ECO3 – What’s New?
ECO3 focused mainly on single measures like boiler swaps.
ECO4 is whole-house focused – meaning multiple upgrades can be installed.
Broader eligibility via LA Flex.
Greater emphasis on low-income households and net zero targets.
Common Myths About ECO4
“You must be on benefits to qualify.”
Not true LA Flex opens eligibility for non-benefit households.
“Only homeowners can apply.”
Tenants can qualify with landlord approval.
“It’s too complicated.”
With Reliant Energy Solutions, we handle the entire process for you.
Future of ECO4
The scheme runs until March 2026, but the government may expand energy-saving measures under future programs. Demand is expected to rise, so households are encouraged to apply early before local funding runs out.
Final Thoughts
The ECO4 Scheme 2025 is transforming UK homes by making them warmer, greener, and more affordable to run. With thousands of households already benefitting, it’s time to check if your property qualifies. At Reliant Energy Solutions, we make it simple—from eligibility checks to professional installation. Whether you need a new boiler, insulation, or heating controls, we ensure you get the maximum support available. Call Reliant Energy Solutions on 0161 706 0433 today. Or visit our website for a free ECO4 eligibility check.
