When Your Home Never Really Warms Up: Proving a Cold or Damp Property for UK Energy Help in 2026

Cold homes are not always dramatic. Sometimes the radiator is lukewarm, the windows stream with condensation by mid-morning, and the back bedroom never quite loses that clammy feel. If you are applying for energy help in 2026 because your home is hard to heat, the trick is not to write an essay about it. The trick is to show the pattern clearly, in a way a caseworker can check quickly.

At NPower Energy Fund, the plain-English rule is this: send evidence that answers the question, does this home cost more to keep warm than it should? You do not need to prove every cough, every draught or every winter since 2019. You need a small, tidy file that tells a believable story.

Start with the story your home is already telling

Before you collect anything, write three or four lines about the problem. For example: the living room is fine when the heating is on, but the bedrooms are cold by evening; the boiler runs constantly in cold weather; there is damp on the north-facing wall; someone in the household has breathing trouble that gets worse in winter. Keep it factual and dated. That short note gives context to everything else, so a meter reading or photo does not arrive with no explanation.

The EPC: useful, but not the whole picture

An Energy Performance Certificate can be helpful, especially if it shows a low rating or recommends measures like loft insulation or draught-proofing. You can usually find an existing EPC on the government register if you do not have a copy. But do not panic if the rating is not as low as you expected, or if the certificate is old. An EPC is a starting point, not a verdict. It describes the property, not the way you live in it or the health issues that make cold rooms harder to manage.

Meter readings and usage: the boring bits that matter

Meter readings are some of the most useful evidence you can send because they are hard to argue with. Take readings at roughly the same time each day for two weeks if you can, and note them down with the date. If you have a smart meter, download or screenshot the usage history. If you use prepayment meters, keep top-up receipts or app records. The aim is to show a pattern: for example, high usage in cold snaps, or heating that has to run for hours to reach a normal temperature.

Do not worry about creating a perfect spreadsheet. A simple table with date, time, reading and a short note like 'cold day, heating on all morning' is enough.

A temperature log that a human can read

Temperature logs work best when they are simple. Pick two or three rooms, such as the living room, main bedroom and bathroom. Note the time, the room temperature and whether the heating was on. Do this for a week or two, not every hour of every day. If you have a thermometer that records highs and lows, even better, but a basic room thermometer is fine.

Add a line about the weather if it helps: 'frosty morning' or 'heavy rain, damp patch worse'. This stops the log looking like random numbers and shows the link between cold weather and a home that struggles to cope.

Photos: take fewer, label them better

Photos can be powerful, but a blurry close-up of a wall does not help anyone. Take a handful of clear pictures: condensation on windows, damp patches with a rough scale, draughts around a door, the boiler display, a radiator that is cold at the bottom, or temporary heating you are relying on. Label each one with the date and room. If you are worried about privacy, move personal items out of shot rather than editing the photo later.

Health evidence: relevant, not a full medical history

If someone in the household has a health condition that makes cold or damp harder to manage, a short letter from a GP, specialist or support worker can help. So can a prescription list or a hospital letter that mentions respiratory, circulatory or mobility issues. You do not need to send your entire medical record. A single page that confirms the condition and explains why a warm, dry home matters is usually more useful than a thick bundle.

What to leave out

Leave out anything you have not been asked for and anything that could distract from the main point. That means no full bank statements unless requested, no angry letters to your supplier, no duplicates of the same document and no long medical history going back decades. If you are unsure, keep it in a separate folder at home and send it only if the grant body asks.

Put it in one tidy pack

Arrange your evidence in the order someone will read it: a short cover note, the application form or reference, then EPC, meter readings, temperature log, photos and health evidence. Number the pages if there are more than a few. Keep a copy for yourself, and write down the date you sent it and any reference number. If you apply online, save the confirmation email.

A short checklist before you send

• Is the address and applicant name correct?
• Have you explained the problem in a few clear lines?
• Are meter readings dated?
• Does the temperature log cover a realistic period?
• Are photos labelled by room and date?
• Is health evidence short and relevant?
• Have you kept your own copy?

A hard-to-heat home is a real problem, but proving it does not have to become a second job. A calm, modest evidence file usually speaks louder than a shoebox of paper.