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Apply for Free Boiler Replacement Under ECO4 Boiler Grants

If your household receives certain benefits and your home has an old, inefficient boiler (pre-2005) with an EPC rating below D, you could qualify for a brand-new energy-efficient boiler – 100% funded.

If your household receives certain benefits and your home has an old, inefficient boiler (pre-2005) with an EPC rating below D, you could qualify for a brand-new energy-efficient boiler – 100% funded.

Takes just 60 seconds to check if you qualify.

Simple Process, Certified Standards

Quick Eligibility Check

Free Retrofit Survey

Installation in Just 3 Days

Quick Eligibility Check

Takes Just 60 Seconds

Free Retrofit Survey

TrustMark & PAS 2035 Compliant

Installation in Just 3 Days

By Gas Safe Registered Engineers

Eligibility to Apply for ECO4 Scheme

Who can Apply?

Eligible Benefits

Three Signs that Show Your Existing Boiler is Non-Condensing

You can check for any of these three signs to identify whether you have a non-condensing boiler or not:

Three Signs that Show Your Existing Boiler is Non-Condensing

You can check for any of these three signs to identify whether you have a non-condensing boiler or not:

Comparing Boiler Efficiency Ratings

Age of the BoilerEfficiency Percentage (%)Efficiency Rating (ErP)
0+ Years90%+ efficiencyA-rated
10+ Years 80%+ efficiencyB/C-rated
15+ Years78%+ efficiencyC/D-rated
20+ Years75%+ efficiencyE/F rated
25+ Years70%+ efficiencyG-rated

Still unsure if you have a non-condensing boiler? Just check your eligibility by answering a few questions, and our experts will contact you with advice and more details.

Goverment-Backed

ECO4 Boiler Grants

Future-Proof Your Home with Free Boiler Upgrades

Under the ECO4 scheme, you can replace your old non-condensing boiler 100% free.

If eligible, your upgrade includes:

Simple 4-Step ECO4 Application Process

We make it simple for you. From checking your eligibility to a complete energy upgrade, our government-approved installers handle everything fast and professionally.

Check Eligibility
Grant Application
Free Site Survey
Certified Engineers

Eligibility Check

Find out if you qualify in minutes using our online checker. We assess income, benefits, EPC rating, and property type.

Grant Application

Once eligible, we handle your grant application, completely free. No hidden fees, no third-party delays.

Free Site Survey

A qualified retrofit assessor surveys your home & collects photographic evidence to recommend the best energy-saving upgrades.

Installation by Certified Engineers

After approval, TrustMark-registered installers carry out the full retrofit, typically within 2–3 working days.

Why Apply for a Free Boiler Grant?

Struggling with an outdated boiler or rising bills? The ECO4 scheme gives eligible households a chance to upgrade their heating system for free. Here’s why it matters:

Boilers installed before 2005 can run at just 70–80% efficiency. Upgrading to a modern A-rated system (92%+ efficiency) cuts wasted energy — and your bills.

A new boiler costs £2,500–£4,000. With ECO4, it’s fully funded if you qualify. No deposit, no repayment, no hidden fees.

Frequent breakdowns drain your wallet. A new boiler comes with a 2-year warranty and far fewer repair issues.

Old boilers can leak carbon monoxide or cause dampness. Modern systems come with safety upgrades that protect your health.

Save up to £900/year or £75/month with a high-efficiency system — especially if you’re heating an older property.

A new boiler can boost your EPC by 10–15 points, lifting your rating from E to C — and increasing home value by up to 20%.

Old Boiler = High Waste

Boilers installed before 2005 can run at just 70–80% efficiency. Upgrading to a modern A-rated system (92%+ efficiency) cuts wasted energy — and your bills.

No Budget? No Problem

A new boiler costs £2,500–£4,000. With ECO4, it’s fully funded if you qualify. No deposit, no repayment, no hidden fees.

Stop Paying for Repairs

Frequent breakdowns drain your wallet. A new boiler comes with a 2-year warranty and far fewer repair issues.

Safer, Smarter Heating

Old boilers can leak carbon monoxide or cause dampness. Modern systems come with safety upgrades that protect your health.

Cut Your Bills Fast

Save up to £900/year or £75/month with a high-efficiency system — especially if you’re heating an older property.

Add Value to Your Home

A new boiler can boost your EPC by 10–15 points, lifting your rating from E to C — and increasing home value by up to 20%.

Join the many homeowners who have boosted their EPC rating and helped to reach the £224.3 million energy-saving target by 2026, set by ECO4.

Application Process

Complete your boiler grant application in four easy steps. Our experts will help ensure a fast and reliable boiler installation. Once your documents are verified, the entire process should take no longer than 3 days

Check Eligibility

First, check whether you qualify for the ECO4 grants with our eligibility checker.

1

Documents Verification

Our expert will verify your given information by asking a few questions

2

Site Survey

We’ll arrange a surveyor visit for an assessment based on your availability

3

Grant Approval

Once your grant is approved, installation will be done within 2-3 days.

4

What Our Client Says

Our Awesome Partners

What Does It Cover?

You will get a brand new condensing  boiler, which can be combi or system, based on your property size, heating needs and number of households.

By boosting your home’s EPC, the grant may cover loft and cavity wall insulation if your property meets the required criteria.

Receive all services, including application assistance, site survey, and installation, completely free of charge.

Free Boiler

You will get a brand new condensing boiler, which can be combi or system, based on your property size, heating needs and number of households.

Free Insulation

By boosting your home's EPC, the grant may cover loft and cavity wall insulation if your property meets the required criteria.

Free Installation

Receive all services, including application assistance, site survey, and installation, completely free of charge.

Without Grants vs With Grant

The UK government has funded 45,138 boiler installations while reaching the halfway journey of the ECO4 scheme from July 2022 to Jun 2024. This achievement highlights the government’s commitment to making homes more energy-efficient and eco-friendly. Absolutely zero burden of cost is put on the household.  ECO4 continues to support greener heating solutions across the country

Without Grant

With Grant

Confirm your eligibility today and start your journey toward a more energy-efficient and comfortable home

Non-Eligible Properties for the Grant

Commercial properties

Properties rented to local government

Social housing / Council rented properties

Park homes

EPC Rating Criteria

Rating Criteria

Your home’s EPC rating is crucial in determining eligibility. Homes with ratings of D, E, F, or G are targeted for improvements under the scheme. Improving your EPC rating not only qualifies you for the free boiler scheme but also increases your property’s value and efficiency.

Old Heating Systems That Can Be Replaced

Don't Let Your Old Boiler Drain Your Budget Any Longer!

A free boiler scheme may provide you with an opportunity to upgrade to a modern, energy-efficient system, keeping your home warm and your bills low—at absolutely no cost.

Get Energy-Efficient Gas Boilers Under the ECO4 Scheme

Upgrade to a modern boiler that suits your home size and lifestyle, all fully funded under the government’s ECO4 scheme:

Combi Boiler

Ideal for flats and small to medium homes (1–3 beds, 1 bath). Combi boilers heat water on demand, so there’s no need for a tank — perfect for households of up to 4 people with limited space.

System Boiler

Best for larger homes (4+ beds, 2+ baths). System boilers store hot water in a cylinder, making them ideal for 5–6 person households that need a steady supply of hot water.

Regular/Conventional Boiler

Common in older properties with existing tanks. Great for homes with multiple bathrooms and low water pressure. Regular boilers work well for larger families and can be replaced under the scheme if they were installed before 2005.

Confirm your eligibility today and start your journey toward a more energy-efficient and comfortable home.

Frequently Asked Questions

Absolutely not! ECO4 boiler grants cover the complete boiler price and installation cost. Homeowners don’t have to pay for anything. Moreover, there is no grant application fee.

The government free boiler scheme does not include any threshold limit. Though Boiler Upgrade Scheme do have (£5,000), but ECO4 scheme has no limit. It means, the grant will cover all, even if the new boiler installation cost beyond £10,000.

For a successful boiler grant application, one has to be a homeowner or private tenant who is on certain government benefits and his existing boiler was installed before 2005.

Those UK homeowners who receive Personal Independence Payment or Disability Allowance are not eligible to get a free boiler.