ECO4 FAQs — Common Questions Answered | ECO4 Lead Gen

Question 1

What is the ECO4 scheme?

Accepted Answer

ECO4 (Energy Company Obligation 4) is a government-backed energy efficiency programme that requires the UK's largest energy suppliers to fund free home improvements for eligible households. It launched in April 2022 and runs until March 2026. The scheme targets fuel-poor and low-income households, providing free insulation, boiler replacements, and heating upgrades.

Question 2

Is ECO4 really free?

Accepted Answer

Yes — if you qualify, all improvements are completely free of charge. There are no hidden costs, no deposits, and no repayments. The work is funded by the energy companies as part of their legal obligation under the scheme. You will never be asked to pay anything.

Question 3

Who runs the ECO4 scheme?

Accepted Answer

ECO4 is administered by Ofgem (the Office of Gas and Electricity Markets) on behalf of the UK Government. The scheme is funded by the UK's largest energy suppliers — including British Gas, EDF, E.ON, Octopus, and others — who are legally required to meet energy efficiency targets.

Question 4

When does ECO4 end?

Accepted Answer

The current ECO4 scheme runs until March 2026. If you think you may be eligible, we strongly recommend checking your eligibility as soon as possible to ensure you don't miss out. Funding is allocated on a first-come, first-served basis and availability in your area may be limited.

Question 5

Who is eligible for ECO4?

Accepted Answer

You may be eligible if you receive certain means-tested benefits (such as Universal Credit, Pension Credit, or Income Support), or if your household income is below £31,000 per year. Your property must also have an EPC rating of D, E, F, or G. Both homeowners and private tenants can apply, though tenants will need their landlord's consent.

Question 6

Which benefits qualify for ECO4?

Accepted Answer

The qualifying benefits include: Universal Credit, Pension Credit, Income Support, Income-based Jobseeker's Allowance (JSA), Income-related Employment and Support Allowance (ESA), Child Tax Credit, Working Tax Credit, and Housing Benefit. If you receive any of these, you are likely to be eligible.

Question 7

Can I apply if I don't receive benefits?

Accepted Answer

Yes. Even if you don't receive benefits, you may still qualify under the low-income route if your household income is below £31,000 per year and your property has an EPC rating of D or below. Some local authorities also have additional funding available through the Great British Insulation Scheme (GBIS), which has broader eligibility criteria.

Question 8

Can private tenants apply?

Accepted Answer

Yes, private tenants can apply for ECO4 improvements, but your landlord's written consent is required before any work can be carried out. In many cases, landlords are happy to agree as the improvements increase the property's energy efficiency rating and value. We can help facilitate this conversation.

Question 9

Does my property type affect eligibility?

Accepted Answer

ECO4 covers most residential property types including detached, semi-detached, terraced houses, bungalows, and flats. The key factor is your property's EPC rating — properties rated D, E, F, or G are prioritised. If you don't know your EPC rating, we can help find out during the assessment process.

Question 10

How do I apply for ECO4?

Accepted Answer

Simply complete our free eligibility check on this website. It takes less than 60 seconds. If you appear to qualify, one of our team will contact you to confirm your details and arrange a free home survey. We handle all the paperwork and liaise with approved installers on your behalf — you don't need to contact your energy supplier directly.

Question 11

How long does the process take?

Accepted Answer

From submitting your eligibility check to having the work completed typically takes between 4 and 12 weeks, depending on your location, the type of work required, and installer availability. Simpler measures like loft insulation can often be completed more quickly. We'll keep you updated throughout the process.

Question 12

What happens during the home survey?

Accepted Answer

A certified energy assessor will visit your home to evaluate its current energy efficiency and identify the most suitable improvements. The survey is completely free and takes around 30–60 minutes. The assessor will check your loft, walls, boiler, and heating system, and will explain exactly what work is recommended and why.

Question 13

Who carries out the installation work?

Accepted Answer

All installation work is carried out by TrustMark-registered and MCS-certified contractors. These are vetted, qualified tradespeople who meet strict government standards for quality and safety. You can be confident that all work is completed to a high standard and backed by appropriate guarantees.

Question 14

Will I need to be at home during the installation?

Accepted Answer

Yes, you or another responsible adult will need to be present during the installation. The installer will agree a convenient date and time with you in advance. Most installations are completed within a single day, though larger projects such as solid wall insulation may take longer.

Question 15

How much will I save on my energy bills?

Accepted Answer

Savings vary depending on the type of improvement, your property, and your current energy usage. On average, households that receive ECO4 improvements save over £400 per year on their energy bills. A new boiler combined with loft and wall insulation can save significantly more. The home survey will give you a more accurate estimate for your specific property.

Question 16

Are the improvements guaranteed?

Accepted Answer

Yes. All ECO4 installations come with manufacturer warranties and workmanship guarantees. Boilers typically come with a 2–5 year manufacturer warranty. Insulation measures are guaranteed for a minimum of 25 years under the Cavity Insulation Guarantee Agency (CIGA) or equivalent schemes. Your installer will provide full documentation.

Question 17

Will the improvements affect my EPC rating?

Accepted Answer

Yes — ECO4 improvements are specifically designed to improve your property's energy efficiency rating. After the work is completed, your property's EPC rating should improve, which can also increase the value of your home and make it more attractive to future buyers or tenants.

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