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If you’re a homeowner or renter in the UK, you know how expensive it has become to heat your home. It feels like a challenge to keep your family warm and your expenditures low during the harsh winters and rising energy prices.
The ECO4 scheme (Energy Company Obligation phase 4) is here to help. Backed by the UK government, ECO4 provides funding for free energy efficiency upgrades — including new boilers, insulation, heating systems, and even renewable technologies like air source heat pumps.
At HeatSources UK, we specialise in helping households access up to £40,000 worth of energy-saving improvements — often at zero cost to you.
In this guide, we’ll explain everything you need to know about ECO4, including:
The Energy Company Obligation (ECO) is a government project started in 2013, aimed to fight fuel poverty and reduce carbon emissions by improving the energy efficiency of homes in the UK.
Now in its fourth phase (ECO4) — running from April 2022 to March 2026 — the scheme targets households that:
The idea is simple: By upgrading the insulation and heating systems of homes, residents can use less energy, stay warmer, and lower their expenses — while also helping the UK meet its environmental targets.
Under ECO4, big energy companies are legally obligated to fund improvements for qualifying households. These improvements are installed by accredited companies like HeatSources UK, with the costs covered by the scheme.
Let’s break it down clearly. Here’s how ECO4 benefits you directly:
| Benefit | Impact |
| Lower energy bills | Save up to £500–£1500/year on heating costs |
| Warmer, more comfortable home | No more cold drafts or dampness |
| Increased property value | Energy-efficient homes are more attractive to buyers |
| Reduced carbon footprint | Help the environment with lower emissions |
| Free or heavily subsidised upgrades | No upfront costs if eligible |
In fact, according to UK government estimates, an average ECO4 upgrade can cut energy bills by 30–60%, depending on your current home condition.
You might be surprised — many UK households qualify but don’t realise it!
Even if you don’t claim benefits, you might still qualify under “LA Flex” (Local Authority Flexible Eligibility) rules. We can check that for you.
It’s always worth applying — you might be eligible without knowing it.
At HeatSources UK, we offer a wide range of fully funded measures, depending on your property’s needs:
Heating Improvements
Insulation Upgrades
Renewable & Other Measures
Not all homes will qualify for every measure — but after a free assessment, we’ll recommend what your home is eligible for.
Let’s look at realistic savings:
| Upgrade | Estimated Annual Saving |
| Boiler Upgrade | £300–£500/year |
| Cavity Wall Insulation | £200–£300/year |
| Loft Insulation | £150–£250/year |
| Air Source Heat Pump | £500–£1000/year (depends on usage) |
| Solar Panels | £200–£400/year |
On average, households receiving a combination of measures save £500–£1500 per year on bills.
At HeatSources UK, we make the process easy and hassle-free:
Step 1 — Check Your Eligibility
Fill in our quick online form or call our team. We’ll confirm if you qualify.
Step 2 — Free Home Assessment
Our trained engineers visit your home to assess which measures are best for you.
Step 3 — We Handle the Paperwork
We apply for ECO4 funding on your behalf and arrange installation dates.
Step 4 — Free Installation
Our certified installers carry out the work — often in just 1–3 days — with minimal disruption.
Step 5 — Enjoy Lower Bills
Relax in a warmer, more energy-efficient home.
Apply today — it’s quick, easy, and could save you thousands.
We’re trusted experts in delivering ECO4-funded home upgrades across the UK. Here’s why homeowners trust us:
Yes — if you meet the eligibility criteria, ECO4 covers 100% of the costs for approved measures.
You might still qualify under LA Flex. Contact us — we can check for you.
No — ECO4 is a grant, not a loan. There are no repayments.
Yes — private landlords can apply with tenant permission if tenants meet eligibility.
Most upgrades (boilers, insulation) take 1–3 days, depending on the measures.
Ready to Save Money and Stay Warm? Apply Today.
Don’t miss out on free home upgrades worth up to £40,000.
Check your eligibility today and start saving money on your energy bills.
👉Click here to apply now (Free Eligibility Check)
📞Call us at +44 7837 418499 — Our friendly advisors are ready to help.
The ECO4 scheme is a game-changer for UK homeowners looking to cut bills, stay warm, and reduce carbon emissions.
With free funding, quick installations, and long-term savings, there’s no reason to wait.
Contact HeatSources UK today and secure your energy-efficient future.
Keep cozy and comfortable with our environmentally friendly heating systems, powered by sustainable energy solutions.
Keep cozy and comfortable with our environmentally friendly heating systems, powered by sustainable energy solutions.
