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Cutting bills, supporting families: a Conservative approach to warmer homes

Sarah Kostense-Winterton, Executive Director

Sarah Kostense-Winterton, Executive Director | Mineral Wool Insulation Manufacturers Association

3 min read Partner content

If taxpayers’ money is going to retrofit Britain’s draughty homes, people deserve to see and trust the payoff: lower bills, better comfort, and less waste. Without that, trust and confidence quickly fade

Britain’s families are paying some of the highest energy bills in Europe. Millions live in cold, draughty homes, losing heat through poorly insulated walls. The issue isn’t just global energy prices or levies on bills – it’s the energy wasted by our inefficient housing stock.

This problem can be solved. Families deserve the confidence that their homes can be warmer in winter, more efficient, and affordable to run. By backing practical solutions and insisting on accountability – with clean heat and high-quality insulation working together, and the performance of each verified – Conservatives can cut bills and build consumer trust.

Practical solutions families can trust

Conservatives believe in common-sense answers. That means prioritising energy efficiency through high-quality insulation, giving households the flexibility to choose what works best for them, backed by clear advice and guaranteed outcomes. Upgrades shouldn’t be one-size-fits-all.

The lesson of the past decade is clear: too many retrofit schemes made promises that never materialised. Families were disappointed, taxpayers short-changed, and confidence in energy efficiency eroded. We cannot afford to repeat those mistakes.

A new Conservative approach should back a market-led system that is geared up to guarantee energy savings, rewards installers for quality work, and ensures every pound of public money delivers measurable value. Above all, it requires a cultural shift: stop assuming retrofit outcomes and start verifying them.

MIMA’s report, Making Performance-Led Home Retrofit a Reality, shows how Conservatives can embed accountability and choice into retrofit policy – restoring trust, cutting waste, and putting Britain on a credible path to lower bills.

Lower bills, stronger energy security

Well-installed insulation reduces national energy demand, eases pressure on the grid, and lowers reliance on costly imports. That means a more secure energy supply and lower costs for every household.

High-quality homes also improve health outcomes, reduce strain on the NHS, and protect the most vulnerable – from pensioners to young families. Fuel poverty is one of Britain’s toughest challenges. By focusing on practical, performance-led policies, we can ensure no household is left behind. Warmer, safer homes shouldn’t be a luxury – they should be the standard.

Proven, homegrown solutions

As the Committee on Fuel Poverty noted in its 2024 annual report, “the best path toward sustainability for low-income households has to be a fabric-first – insulation, insulation, insulation – approach.”

Non-combustible mineral wool insulation – made from stone or glass wool – helps keep homes warmer, quieter, and safer. Its benefits are proven, long-lasting, and cost-effective. Unlike many newer technologies, it delivers reliability and performance that households can trust.

Better still, these products are made in the UK by MIMA members Knauf Insulation, Superglass, and ROCKWOOL. Supporting British businesses creates jobs, strengthens local economies, and keeps investment at home.

A Conservative vision

Our approach is simple: lower energy bills, stronger domestic businesses, empowered consumers, and a more secure Britain. Families deserve solutions that work – and a government that supports the businesses delivering them.

By prioritising proven technology, supporting UK industry, and putting families in control, Conservatives can lead a fair and measurable energy transition.

For more information, please contact [email protected]

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