Cutting bills, building trust: from promise to proof on warm homes
Britain’s families are paying some of the highest energy bills in Europe. Millions live in cold, draughty homes, paying for heat that’s lost through their walls. The problem isn’t just gas prices – it’s the energy being wasted by our inefficient housing stock
What people want are warmer, more efficient homes with lower bills – and outcomes they can see and trust. Trust has been missing for years, after one too many energy efficiency policies have inadvertently over-promised and under-delivered.
Labour has set out an ambition to cut emissions and reduce energy bills by £300 by 2030. It is a bold promise – but it will only succeed if it rests on proven solutions and real accountability. That means pairing clean heat with well-installed insulation and ensuring outcomes are not just promised, but measured, verified, and trusted by households.
The common-sense fix
At the heart of Labour’s manifesto is slashing fuel poverty. Upgrading homes with non-combustible mineral wool insulation – made from stone or glass wool – should be the backbone of that effort. For decades, it has helped homes retain heat in winter, cut noise, and resist the spread of fire. It is one of the most effective, affordable, and reliable ways to reduce energy bills and improve comfort. Unlike many newer technologies, its benefits are proven and long-lasting.
Mineral wool insulation is a homegrown solution. MIMA members Knauf Insulation, Superglass, and ROCKWOOL are rooted in the UK – supporting communities, creating jobs, and investing in local economies.
Rebuilding trust
Labour has the chance to do things differently and rebuild that consumer trust and confidence. It can create a system where households see guaranteed energy savings, installers are rewarded for quality work, and every pound of public money delivers value.
That requires one shift above all: stop assuming intended retrofit outcomes will be delivered and start verifying them. MIMA’s new report, Making Performance-Led Home Retrofit a Reality, sets out how Labour could embed accountability and fairness into its Warm Homes Plan.
If taxpayers’ money is going to retrofit Britain’s draughty homes, people deserve to see the payoff: lower bills, warmer homes, and less waste. Without that, trust and confidence quickly fade.
Value for families, security for Britain
As the Committee on Fuel Poverty referenced in its 2024 annual report, “the best path toward sustainability for low-income households has to be a fabric first – insulation, insulation, insulation – approach”.
The benefits of well-installed insulation can be a lifeline for families battling the cost of living, but it is more than a money-saver. Well-insulated homes cut national energy demand and ease pressure on the grid. That strengthens Britain’s energy security, lowers reliance on costly imports, and keeps the lights on.
And the safety and health benefits of non-combustible mineral wool insulation in particular are undeniable. Warmer, healthier homes reduce cold-related illnesses, easing pressure on the NHS and improving lives.
No one left behind
Fuel poverty is one of Britain’s most stubborn social problems. It hits pensioners, low-income families, and people with health conditions hardest. Poor insulation makes their homes needlessly expensive to heat.
Labour can change this. By making insulation central to its Warm Homes Plan – and ensuring delivery is performance-led, not just assumed – it can prove it’s serious about solving the energy crisis and bringing down energy bills.
The outcome should be simple and country-wide: warmer homes, lower bills, and a stronger, fairer, more secure Britain. Families deserve nothing less.
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