If your unusually high heating bills and inefficient old boiler are putting pressure on your home finance, then there is no better time to act as there is more government help than ever at hand. The free boiler grants allow British homeowners to upgrade their domestic heating systems at no cost at all through government funded initiatives. In this blog, we will cover what you need to know about government funded schemes so that you can upgrade your heating system completely for free!
What the Free Boiler Scheme Can Provide in 2025
The free boiler scheme involves different government schemes aimed at helping UK homes upgrade their boiler systems. The central program behind the upgrades is the ECO4 scheme (Energy Company Obligation), the fourth phase of the government’s commitment to combatting fuel poverty and improving the UK housing energy efficiency.
Under the ECO4 initiative, eligible homes receive full funding for boiler replacement grants worth as much as £15,000, with some homes qualifying for £30,000 worth of overall improvements, depending on the upgrades they require to transform their homes into a warm and healthy living space. This is not a repayment loan but a free finance to cover the full cost of replacing your old boiler with a new, energy-efficient one.
The scheme operates through big energy firms, like ECO Boiler Grants, that have an obligation to provide these upgrades to qualifying homes. The ECO4 scheme has so far upgraded over 300,000 homes in England, Scotland, and Wales since it was launched in 2022.
ECO Boiler Grants only installs premium systems and high quality materials from brands like Worcester Bosch, ensuring your new system and insulation last a long-time, helping keep you and your family warm for decades. Fill in our 1-minute form to check your eligibility and our team will contact you in less than 24 hours to help advise you on the best heating system solutions available for you!
Benefits of the New Boiler Grant Scheme
The considerable savings on your energy bill is one of the most important benefits during these hard economic times. Replacing an old G-rated boiler with a new A-rated condensing boiler will save the average home between £350 to £850 or more per year, depending on the size of property. Average savings for medium-sized homes are £500 a year. The scheme will also cost you nothing, as the free boiler replacement scheme covers the removal of your existing system, fitting of your new boiler, and in most cases, additional upgrades such as radiators, pipework, and smart controls.
With professional installations that we carry out, your comfort levels will be greatly enhanced! Condensing boilers are 90-99% efficient compared to the old systems that may be 60-70% efficient; this means more consistent heating and hot water supply with no interruptions. It will also add value to your property as a new boiler will significantly improve your property’s Energy Performance Certificate rating, helping raise its value by between £8,000 and £15,000.
The environmental impact is also an important aspect of the scheme to environmentally conscious homeowners, and possibly the biggest drive behind the government’s support for the scheme. Upgrading to an efficient system enables homes to save 1,200kg of carbon annually, contributing to the UK achieving its Net Zero targets.
Types of Boilers Under Free Replacement Schemes
The free boiler upgrade focuses on the installation of highly efficient condensing boilers with 90-99% efficiency ratings. The new boilers use advanced heat recovery technology to recover waste heat that was lost in earlier non-condensing versions.
Combi boilers installed by the scheme are currently the UK’s top choice for home heating systems, suitable for small to medium homes, and with the ability to provide hot water and heat immediately without any additional tanks or cylinders. System boilers, fully covered by the scheme. Are ideal for bigger homes with multiple bathrooms that demand hot water at the same time, being installed with a hot water cylinder but no cold water tank, requiring more space than the small combi boiler which can easily be installed in a kitchen cupboard.
Heat-only boilers are ideal for homes with existing cylinder and tank systems, allowing for more flexibility to large homes with high levels of hot water use.
Low-Carbon Alternatives
For homes looking to install greener options, or without mains gas supply, the eco boiler scheme can cover the cost of the following systems:
1. Air Source Heat Pumps: utilizing heat from outside air, these systems are 300-400% efficient, and eligible homes can have solar panels installed alongside them, which results in energy bills dropping significantly while reducing your dependency on the grid. ASHPs can also be installed under the BUS scheme, with funding of up to £7,500.
2. Ground Source Heat Pumps: Using the more stable underground temperatures, these are high long-term efficient systems that can last for more than 25 years.
3. Biomass Boilers: Suitable for rural homes with no gas supply, using renewable energy from wood pellets or logs.
The scheme particularly prioritizes the replacement of:
- Non-condensing boilers (pre-2005 gas boilers)
- Back boilers
- Electric storage heaters
- Old oil boilers
- Inefficient or defective systems that require constant repairs
Conclusion
The heating boiler grant is a vital opportunity for UK homeowners to have their heating systems replaced at no cost, helping reduce heating costs, and boost home comfort at no cost. With £4 billion of ECO4 funding allocated through to March 2026, eligible households can get free full heating upgrades worth thousands of pounds.
From low-paid working homeowners claiming qualifying benefits to pensioners and vulnerable household members, the broad coverage of the scheme means much more at-risk homes are covered under this scheme. The substantial annual cost savings, on average being £300-800 per year, combined with higher reliability, comfort, and value to the home, make this program highly attractive to homeowners.
But funding is allocated on a first-come, first-served basis, so quick action should be taken. The combination of rising energy costs with short programme duration means that delaying can result in you missing out on this opportunity.
Don’t let another winter pass with expensive bills and an unreliable heating system. Fill in our form now or contact us if you have any enquiries. Our team is always happy to support you with any enquiries or questions you might have about your eligibility or which heating system is best suitable for your needs and home!





