The Scale of Botched Insulation: Lessons for the Industry
Recent reporting by the BBC has brought to light the extent of failings in government-backed insulation schemes. Ministers have admitted that more than 30,000 homes across the UK have been fitted with poorly-installed insulation since 2022 under the ECO4 and Great British Insulation Scheme. These installations have left households at risk of damp, mould, and in some cases, serious health consequences (BBC News, 4 September 2025)
A Widespread Problem
The government described the situation as a “systemic failure”. Audits of 60,000 homes have revealed that over half did not meet the necessary standards. Families in places such as Luton and County Durham have faced crumbling plaster, black mould, and even dry rot as a result of poor workmanship. Vulnerable individuals, including older residents and those with chronic health conditions, have been particularly affected.
The Human Cost
The BBC article highlights the stories of homeowners who have struggled to hold installers accountable. One resident from Luton, Mohammed, described how his late father’s asthma worsened after damp and mould spread across their walls. Another homeowner, aged 93, reported her property being “destroyed” by damp. These cases illustrate the severe impact poor installation can have, not just on properties but on health and wellbeing.
The Role of Specialist Firms
While government audits continue, consumers are being encouraged to contact Ofgem if they are affected. The need for reliable and competent remediation work is clear. Companies operating in this sector must demonstrate technical expertise, accountability, and transparent communication with clients.
Where installers fall short, it is remediation specialists who face the challenge of correcting substandard work. The industry as a whole must reflect on how these failings occurred, and what measures are required to restore public trust.
Looking Forward
The government has pledged to overhaul consumer protection in this area. For the tens of thousands of households living with botched insulation, this cannot come soon enough. The priority now is not just to cut energy bills, but to safeguard health and homes by making sure remedial work is completed swiftly and to a proper standard.
Take Action Now
If you believe your property may have failed cavity wall insulation, contact Cavitech today. There is still time to have the problem assessed and resolved before the winter months set in. Acting early can help protect your home, your health, and your heating bills.