The Serious Fraud Office (SFO) has opened a criminal investigation into UK companies suspected of defrauding energy-efficiency schemes of £44 million. The probe, first reported by Global Banking & Finance Review, centres on allegations that firms misappropriated funds intended for household upgrades under programmes including the Energy Company Obligation (ECO4). For the 1.5 million UK households eligible for free or heavily subsidised insulation, heat pumps, or solar panels, this is a stark warning: not every company knocking on your door is legitimate.
What the SFO is investigating, and why it matters to you
The SFO, which handles the most serious economic crime, confirmed it is examining “suspected fraud” involving energy-efficiency grants. While the agency has not named the companies, the £44 million figure suggests systematic abuse, possibly fake installations, inflated costs, or ghost applications. Ofgem, which administers ECO4, requires suppliers to meet strict obligations; any fraud undermines the scheme’s credibility and could reduce future funding. Homeowners who unknowingly accept fraudulent work risk losing warranty protection or being left with substandard upgrades.
ECO4 basics: who qualifies and what is covered
ECO4 is a government scheme that obligates energy suppliers to fund energy-saving measures for low-income, fuel-poor, or vulnerable households. Typical upgrades include loft and cavity wall insulation, air-source heat pumps, solar photovoltaic panels, and boiler repairs. Eligibility is means-tested: households on certain benefits or with an EPC rating of D or below can apply. The grant covers the full cost of installation, but only through approved installers registered with TrustMark and the Microgeneration Certification Scheme (MCS). Any company claiming to offer ECO4 grants without these credentials is operating outside the rules.
How to protect yourself from ECO4 fraud
The SFO investigation should prompt every homeowner to verify their installer. Start by checking the company’s name on the TrustMark website, every ECO4 installer must be listed. Next, confirm MCS certification for heat pumps or solar work. Never pay upfront for an ECO4 grant; legitimate schemes are fully funded by the supplier. Be wary of cold callers, high-pressure sales tactics, or promises of “free upgrades” that require your bank details. If something feels off, report it to Action Fraud or the SFO directly.
What happens next, and what to do if you suspect fraud
The SFO investigation could take years, but its impact is immediate. Ofgem may tighten oversight, slowing application approvals. Homeowners who believe they have been defrauded should contact their energy supplier first, then the SFO via its online reporting portal. Keep all paperwork, including the EPC certificate, installation contract, and photos of the work. The Energy Saving Trust offers free advice on verifying grants. For now, the safest path is to use only established, verified installers, and never let a stranger talk you into a “government scheme” without proof.
Frequently Asked Questions
You should verify the installer is registered with TrustMark on their website, and for heat pumps or solar panels, confirm Microgeneration Certification Scheme (MCS) certification. Legitimate ECO4 installers never ask for upfront payment, and you can report suspicious companies to Action Fraud.
ECO4 is a UK government scheme requiring energy suppliers to fund energy-saving measures like insulation, heat pumps, and solar panels for low-income households. You qualify if you're on certain benefits or have an Energy Performance Certificate (EPC) rating of D or below, with the grant covering the full installation cost through approved installers.
The ECO4 grant covers the full cost of installation for eligible households, including loft insulation, cavity wall insulation, air-source heat pumps, and solar panels. Typical installation costs can range from £1,000 to £10,000 depending on the measure, but you pay nothing if you qualify.
Contact your energy supplier first, then report it to the Serious Fraud Office (SFO) via its online portal. Keep all paperwork, including your EPC certificate, installation contract, and photos, and get free advice from the Energy Saving Trust on verifying grants.
Yes, Ofgem may tighten oversight, which could slow application approvals for ECO4 grants. The SFO investigation, which focuses on suspected fraud by companies misappropriating funds, is a warning to homeowners to only use TrustMark and MCS-registered installers to avoid losing warranty protection.
