The Warm Homes Loan Scheme, launched on 27th October, is designed to overcome one of the biggest barriers to installing clean energy technologies: the upfront cost.
Available across England, Scotland, Wales and Northern Ireland, the scheme allows eligible homeowners to spread the cost of improvements over several years, with some lenders offering interest-free finance and repayment periods extending up to 30 years.
The Government says the initiative could help thousands more households make their homes cheaper to run while creating additional opportunities for installers and the wider supply chain.
How much can homeowners borrow?
The maximum loans available depend on the technology being installed:
- Solar panels: Up to £15,000
- Battery storage: Up to £15,000
- Air-to-water heat pumps: Up to £20,000
- Air-to-air heat pumps: Up to £10,000, once MCS certification becomes available
- Ground source heat pumps: Up to £35,000
- Biomass boilers: Up to £20,000
- Heat network connections: Up to £7,500
- Other eligible micro-renewable systems: Up to £20,000
The Government estimates that households installing a heat pump, solar panels and battery storage could save up to £550 annually on energy bills, potentially rising by a further £300 with a suitable time-of-use tariff.
Actual savings will depend on the property, installation costs, energy consumption and tariffs.
Loans can be combined with grants
An important feature is that homeowners may be able to combine loans with existing Government grants, including support through the Boiler Upgrade Scheme and Home Energy Scotland.
This could make technologies such as heat pumps more affordable by allowing households to finance costs not covered by grant funding.
Ten lenders are participating initially, including Tandem Bank, Secure Trust Bank, Sunsave, Selina Finance and South Manchester Credit Union, with further providers and products expected to join.
Interest rates and repayment terms will vary, and applicants will be subject to normal credit and affordability checks.
Opportunities for installers
For the energy efficiency industry, the scheme offers another potential source of demand beyond traditional grant-funded programmes.
By making finance available at the point of sale, it could encourage homeowners who might otherwise delay improvements to proceed with installations.
Most work financed through the scheme must be carried out by MCS-certified installers, reinforcing the importance of recognised technical standards and consumer protection.
The initiative also arrives at a time when the industry is seeking greater certainty over future funding and delivery under the Warm Homes Plan.
While loans cannot replace grants for households unable to take on additional borrowing, they could help expand the market for energy-saving technologies and support sustainable growth across the sector.
Ultimately, the scheme's success will depend on whether the finance is sufficiently affordable and accessible to encourage more households to invest in warmer, more energy-efficient homes.
Further information:
Government Warm Homes Loan Scheme factsheet
Check eligibility for the Warm Homes Loan Scheme