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.
Takes Just 60 Seconds
TrustMark & PAS 2035 Compliant
By Gas Safe Registered Engineers
Homeowner or private tenant (Living with Home Owner).
Property’s EPC rating is lower than D, E, F, or G.
You receive qualifying Government benefits.
The existing boiler is older than 2005 and is of non-condensing type.
Boiler is older than 2005 and is of non-condensing type.
Or you have no boiler installed previously.
Income Based – Jobseekers Allowance (JSA)
Income Related – Employment and Support Allowance (ESA)
Income Support Allowance (ISA)
Working Tax Credit (WTC)
Child tax credit (CTC)
Universal Credit (UC)
Pension Guarantee Credit
Pension Savings Credit
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:
| Age of the Boiler | Efficiency Percentage (%) | Efficiency Rating (ErP) |
|---|---|---|
| 0+ Years | 90%+ efficiency | A-rated |
| 10+ Years | 80%+ efficiency | B/C-rated |
| 15+ Years | 78%+ efficiency | C/D-rated |
| 20+ Years | 75%+ efficiency | E/F rated |
| 25+ Years | 70%+ efficiency | G-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
Under the ECO4 scheme, you can replace your old non-condensing boiler 100% free.
If eligible, your upgrade includes:
We make it simple for you. From checking your eligibility to a complete energy upgrade, our government-approved installers handle everything fast and professionally.
Find out if you qualify in minutes using our online checker. We assess income, benefits, EPC rating, and property type.
Once eligible, we handle your grant application, completely free. No hidden fees, no third-party delays.
A qualified retrofit assessor surveys your home & collects photographic evidence to recommend the best energy-saving upgrades.
After approval, TrustMark-registered installers carry out the full retrofit, typically within 2–3 working days.
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:
A new boiler costs £2,500–£4,000. With ECO4, it’s fully funded if you qualify. No deposit, no repayment, no hidden fees.
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%.
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%.
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.
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
First, check whether you qualify for the ECO4 grants with our eligibility checker.
Our expert will verify your given information by asking a few questions
We’ll arrange a surveyor visit for an assessment based on your availability
Once your grant is approved, installation will be done within 2-3 days.
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.
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.
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
Confirm your eligibility today and start your journey toward a more energy-efficient and comfortable home
Commercial properties
Properties rented to local government
Social housing / Council rented properties
Park homes
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.
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.
Upgrade to a modern boiler that suits your home size and lifestyle, all fully funded under the government’s ECO4 scheme:
System boilers are better for larger homes with multiple rooms and bathrooms. They work well for homes with more than 4 bedrooms and can support larger households of up to 6 members by storing hot water in a separate cylinder, providing more consistent heating and hot water.
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.
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.
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.
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.
We provide free installation of A-rated condensing boilers, heat pumps, radiators, and insulation for low-income households living in properties having EPC rating below D.
Get In Touch
Social Media
© Copyright 2025 Grant Boilers. All Rights Reserved.
Social Media
© Copyright 2024 Grant Boilers. All Rights Reserved.
Old Boiler = High Waste
No Budget? No Problem
Stop Paying for Repairs
Safer, Smarter Heating
Cut Your Bills Fast
Add Value to Your Home