If your home has developed damp, mould, condensation or structural damage following energy efficiency works carried out under ECO4 or the Great British Insulation Scheme (GBIS), you may be entitled to make a claim for compensation and remedial work.
Recent media reports have raised allegations of serious concerns regarding certain ECO4 installers who are alleged to have carried out substandard or improper installations, reportedly resulting in property damage, safety risks and significant remedial costs. In some instances, such installers were subject to oversight by professional standards bodies and endorsed through scheme funders or local authorities, which may have given homeowners a reasonable expectation of competence and compliance, potentially leading to financial loss.
ECO4 (Energy Company Obligation Phase 4) and the Great British Insulation Scheme (GBIS) are government-backed energy efficiency programmes designed to improve the energy performance of residential properties.
ECO4 primarily focuses on supporting low-income and vulnerable households through measures such as internal and external wall insulation, heating upgrades and ventilation improvements, with the aim of reducing fuel poverty and lowering energy bills.
GBIS operates alongside ECO4, offering insulation measures to a broader range of households to help improve energy efficiency and reduce overall energy consumption.
Despite higher standards being introduced under ECO4, many installations, particularly external and internal wall insulation, have suffered from systemic failings. Poor or unsuitable installations have left homes at increased risk of damp, condensation, mould and inadequate ventilation, with insulation often failing to perform as intended.
Instead of improving living conditions, these failures have left many households in unhealthy and uncomfortable homes, or in worst cases, uninhabitable environments.
The problem is widespread. Tens of thousands of homes fitted with energy saving measures under ECO4 and the Great British Insulation Scheme are believed to be affected, with many installations requiring remediation. Parliamentary findings have described a clear and catastrophic failure in the delivery of wall insulation, with more than 30,000 homes impacted by defective works.
In many cases, defects were not identified or addressed promptly, allowing damp, condensation and mould to worsen, while poor workmanship or unsuitable insulation systems have caused property damage and unhealthy living conditions, leaving homeowners exposed to ongoing disruption and uncertainty.
Responsibility may lie with installers, designers and those responsible for auditing and quality assurance however this will be dependent on each case. Parliamentary findings highlight systemic failures across the ECO schemes, including poor workmanship, unsuitable insulation systems and inadequate audits that failed to identify defects early. As a result, homeowners have been left dealing with damage that was not their fault.
It is estimated more than 30,000 homes have defective wall insulation, with 98% of external and 29% of internal installations requiring remediation, and 6% and 2% respectively posing immediate health and safety risks. In total, 32,000–35,000 homes are likely affected, with further faults still unquantified.
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Our panel of law firms offer a 14-day cooling off period from the date you sign your agreement. If you change your mind during this time, you can cancel without incurring any fees.
If you choose to cancel outside of 14 days cooling off period, you may be charged for any reasonable work completed up to that point.
Your Choice
You do not need to use a claims management company to make a claim for compensation. You can use a solicitor or company of your own choice or alternatively you can pursue a claim yourself for free by:
Complete our online form and provide information about your potential case. A member of our team will be in touch.
If eligible, you’ll be connected with a trusted, independent law firm who will assess your case, review the evidence, and advise you on your legal options.
Should you decide to move forward, the solicitor will act on your behalf — pursuing corrective remedial works, addressing any damage, and seeking appropriate compensation where necessary.
The government has introduced a find-and-fix programme to identify and remediate defective insulation installations under ECO4 and GBIS. This includes auditing affected homes, prioritising those with the most serious defects, and requiring installers or warranty providers to carry out repairs at no cost to homeowners. Whilst this is a step in the right direction, many customers may not support remedial work from firms which may be responsible for the damages to their property.
Several large ECO installers have recently entered administration, and further closures are possible due to the allegations in recent reports surrounding substandard installations, changes in the funding schemes or market pressures.
If your installer is no longer trading, you are likely still protected. Energy efficiency works should have been provided with a minimum 12-month warranty from the retrofit installer. Where that warranty is no longer valid, or the installer has ceased trading, an insurance-backed guarantee should remain in place. This means that remedial works or compensation options may still be available to you.
If you think your property needs remedial work, start by contacting the installer (if still trading), explain the issues and provide evidence (e.g., photos and dates). If the installer does not resolve the problem, you can follow the TrustMark complaints process or raise the matter with the relevant scheme provider or accredited body as outlined by Ofgem’s official complaints guidance.
If the installer has ceased trading or the warranty is no longer valid, contact the insurance-backed guarantee provider linked to your installation, as these guarantees are intended to cover remedial work when the original installer cannot fulfil their obligations.
You can also reach out to Ofgem’s dedicated ECO support team for further advice and assistance.
If these routes do not resolve your issue, you may be able to pursue redress through an ombudsman service or seek help from Citizens Advice or Trading Standards
You can register your interest in pursuing a claim for compensation and remedial work through our panel of experienced law firms. They can handle your case on a “No Win, No Fee” basis, meaning there’s no upfront cost and nothing to pay if your claim is unsuccessful.
Our law firms take a comprehensive approach to every claim. They will assess not only the cost of any necessary remedial work but also any consequential losses you may have suffered. This may include:
Important Information
When we refer to a “No Win No Fee” service, this means customers typically pay our panel solicitors between 15% – 25% + VAT of the settlement amount recovered. This varies amongst our panel members and will be dependent on the law firm we recommend you to as well as your individual circumstances. Fees will always be agreed with your solicitor’s firm upfront. There may be a termination fee if you cancel your claim with a panel member after the 14 day cooling-off period.
We are paid recommendation fees by our panel members for successful introductions. We will not charge you for our service.
Any solicitor we refer you to is an independent professional from whom you will receive impartial and confidential advice and services from. You are free to choose a solicitor or company of your own choice, or alternatively you can pursue the matter yourself for free by;
The Claims Group is a trading name of Apollo Claims Ltd which is a Claims Management company Authorised and Regulated by the Financial Conduct Authority in respect of claims management activities. Details can be found at https://register.fca.org.uk/. Firm Reference Number 838489
Apollo Claims Ltd is a limited company registered in England and Wales, registration number 05691765. The registered office is at 16 Bury New Road, Manchester, M8 8EL.
