Who pays when energy companies profit? The landlord, the tenant, and the NHS.
Energy costs have tripled. Fines for cold, damp homes are live. The chain of cause and effect leads somewhere landlords cannot control — but are being held responsible for.
A landlord we know did everything right. They electrified their properties for net zero. They installed heat pumps. They followed every piece of government guidance to the letter. Then the bills landed. Their tenants cannot afford to run the systems that were meant to save the planet. The heating goes off. The damp creeps in. The mould follows. And now that same landlord is staring down enforcement notices and a possible fine for a problem they did not cause.
This is the contradiction at the centre of British housing right now. The people who complied are the ones being punished.
The energy bill is not the energy cost
UK energy bills are not rising because energy has become more expensive to produce. Britain generates the majority of its own gas from the North Sea. The cost of pulling it out of the ground has not tripled.
What has changed is the price. UK bills track global wholesale markets, and those markets move on geopolitics, not on the cost of extraction. The gap between what energy costs to produce and what households pay has become a profit margin. An enormous one.
The numbers are not subtle. The End Fuel Poverty Coalition recorded £26.2 billion in energy industry profits in the first quarter of 2026 alone. Since 2020, profits from UK operations have passed £125 billion. Centrica's profits tripled to £3.3 billion in 2022. British Gas saw profits surge tenfold in the first half of 2023. From July 2026, the energy price cap rises another 13 per cent. The average household is now paying roughly £4,800 more over five years than before the gas crisis began.
That money does not vanish. It moves from the coldest homes in the country into corporate balance sheets.
What cold homes do to people
In England, 2.7 million households live in fuel poverty — around 11 per cent — according to DESNZ in 2025. That includes 1.9 million older households, one in six. National Energy Action counts 3.6 million disabled people in fuel poverty. Nearly half of over-65s worry about affording heat. Age UK estimates 9.1 million pensioners live in dangerously cold homes.
Cold homes are not only a private misery. They cost the NHS more than £1 billion every year. The BRE puts the total cost to society of the coldest homes at £15 to £18 billion annually. And the burden falls hardest on renters: Citizens Advice found that private renters in poor quality homes face heating costs around £1,000 higher every year.
The chain that ends in a fine
Follow the sequence. A home runs cold because heating is unaffordable. The tenant turns it off. Internal temperatures drop. Humidity rises. Warm, moist air meets cold surfaces and condenses. Condensation feeds mould. Mould triggers Awaab's Law. The landlord receives an enforcement notice and a fine that can reach £7,000.
Read that chain again. The landlord is being penalised for the end of a process that began with energy prices they cannot influence. They can insulate. They can ventilate. They cannot lower the price cap.
The exposure is bigger than the fine
For a large private landlord, this stops being a single penalty and becomes a portfolio problem. Moody's and insurance underwriters are now pricing damp and mould risk into their assessments. Premiums are climbing. A pattern of enforcement notices can sit on a portfolio like a stain, and it can affect a landlord's ability to raise investment. The fine is the visible cost. The reputational and financial drag behind it is far larger.
The root cause the data points to
Follow the evidence upstream. The mould is not the problem. The cold home is not the problem. The unaffordable heating bill is not the problem. The root cause is a pricing structure that allows energy companies to post £26.2 billion in profit in a single quarter while 2.7 million households cannot afford to stay warm — and then passes the legal and financial consequences downstream to landlords.
Energy production costs in the UK have not risen in proportion to retail prices. The wholesale price mechanism that sets UK bills is indexed to global markets, moving on geopolitics — conflicts in Ukraine, in the Middle East — that energy companies are not causing but are unambiguously benefiting from. The windfall tax was introduced in 2022 and raised to 38 per cent. Profits kept surging.
£125 billion in energy company profits from UK operations since 2020 is not a rounding error. It is a policy outcome. The data exists. The chain of cause and effect is traceable. And there are people in Westminster already asking the right questions — questions that deserve better evidence than is currently available to them.
What monitoring does about it
Continuous monitoring does not fix energy prices. Nothing a landlord installs will. But monitoring tells you what you cannot otherwise see. It tells you which properties are running cold. It tells you which tenants have turned the heating off. It tells you which buildings are heading towards a mould problem before the mould appears. That is the difference between a reactive fine and a managed risk.
A few pounds a week in sensor data, against a £7,000 penalty, rising insurance premiums, and a Moody's note on your portfolio. The maths is not difficult. You cannot control the price of gas. You can control whether you find out about a cold, damp property from your own dashboard or from an enforcement officer.