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Where your heat goes
The heat loss card in plain words, driven by query-shaped fixtures through the same rules the results page uses, so every label here is the real one. The links print which improvement they would open, because there is no report to scroll to.
Facts from the certificate, with linked improvements
A 2014 certificate gives the walls, roof, windows and floor. Cavity wall, loft and draught lines link to the report; solar does not link to the roof, and the unknown saving is left out.
Where your heat goes
Your walls are likely the main way heat leaves your home.
Based on facts about your walls, roof and windows. Your home's exact shape and how draughty it is are still assumed.
Walls
The biggest shareIf your cavity walls are empty, they let a lot of heat straight through.
What to do: Get the cavity checked. An installer can look inside with a small camera, and fill it if it's empty.
From your EPC certificate from 2014
Windows
A fair shareEven good windows lose more heat than an insulated wall.
What to do: Usually not the first job. Check the seals, draught-strip the frames and use heavy curtains.
From your EPC certificate from 2014
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
Assumed from your home's age and type
Floor
A small shareSome heat goes down through the floor, especially if there are gaps.
What to do: Seal gaps between skirting boards and the floor. If you have a suspended floor, ask about insulating it from below.
From your EPC certificate from 2014
Cold spots
A small shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
Roof
A small shareHeat rises, so a thinly insulated loft loses a lot of it.
What to do: A top-up to 270mm is usually a simple job.
From your EPC certificate from 2014
What we had to assume
- Draughts and air: Assumed from your home's age and type
- Cold spots: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.
Pick a link above to see which improvement it would open.
Mixed: some facts, some assumed
Windows and loft depth are the homeowner's answers; the walls are assumed from the age, so the headline says "may be". Three of the rows link.
Where your heat goes
Your walls may be the main way heat leaves your home.
Based partly on facts about your home, and partly on its age and type.
Walls
The biggest shareSolid walls have no gap to fill, so heat passes through them easily.
What to do: Ask a retrofit assessor about insulating the inside or outside. It's a bigger job, so get advice on damp and ventilation first.
Assumed from your home's age and type
Windows
A fair shareSingle glazing loses far more heat than the wall around it.
What to do: Look at secondary or double glazing. Draught-strip the frames in the meantime.
From your answers
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
Assumed from your home's age and type
Roof
A small shareHeat rises, so a thinly insulated loft loses a lot of it.
What to do: A top-up to 270mm is usually a simple job.
From your answers
Floor
A small shareSome heat goes down through the floor, especially if there are gaps.
What to do: Seal gaps between skirting boards and the floor. If you have a suspended floor, ask about insulating it from below.
Assumed from your home's age and type
Cold spots
A small shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
What we had to assume
- Walls: Assumed from your home's age and type
- Draughts and air: Assumed from your home's age and type
- Floor: Assumed from your home's age and type
- Cold spots: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.
Pick a link above to see which improvement it would open.
Low evidence: everything assumed
No survey, certificate or photo detail, so the home's age and type drive every row. The age and attachment warnings are reworded, the square-feet warning shows "m²", and the aerial-quality warning says nothing because aerial imagery is not used.
Where your heat goes
Your walls may be the main way heat leaves your home.
Mostly assumed from your home's age and type, so treat this as a starting point. Adding your EPC or answering the insulation questions would make it specific to your home.
Walls
The biggest shareWe don't know exactly how your walls are built.
What to do: Get them looked at. Knowing the wall type is the first step to choosing insulation.
Assumed from your home's age and type
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
Assumed from your home's age and type
Windows
A small shareEven good windows lose more heat than an insulated wall.
What to do: Usually not the first job. Check the seals, draught-strip the frames and use heavy curtains.
Assumed from your home's age and type
Cold spots
A small shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
Floor
A small shareSome heat goes down through the floor, especially if there are gaps.
What to do: Seal gaps between skirting boards and the floor. If you have a suspended floor, ask about insulating it from below.
Assumed from your home's age and type
Roof
A small shareWe don't know how deep your loft insulation is. If it's thin, a lot of heat goes this way.
What to do: Check the depth with a tape measure. If it's under 270mm, a top-up is usually a simple job.
Assumed from your home's age and type
What we had to assume
- We don't know when your home was built, so we assumed 1950 to 1966. This matters a lot here.
- We don't know if your home is attached to its neighbours, so we assumed detached, which gives the highest heat loss.
- We read your floor area as square feet and converted it to 84 m², because the figure given was too large to be metric. If your home really is that big, correct the units on your survey — every number here scales with floor area.
- Walls: Assumed from your home's age and type
- Draughts and air: Assumed from your home's age and type
- Windows: Assumed from your home's age and type
- Cold spots: Assumed from your home's age and type
- Floor: Assumed from your home's age and type
- Roof: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.
Pick a link above to see which improvement it would open.
A certificate that only assumes the wall
Everything else comes from the certificate. The walls row says the certificate assumes it, which is not the same as a fact, and the two top rows are close enough to share the headline.
Where your heat goes
Your windows and draughts may be the main ways heat leaves your home.
Based partly on facts about your home, and partly on its age and type.
Windows
The biggest shareEven good windows lose more heat than an insulated wall.
What to do: Usually not the first job. Check the seals, draught-strip the frames and use heavy curtains.
From your EPC certificate
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
Assumed from your home's age and type
Walls
A fair shareIf your cavity walls are empty, they let a lot of heat straight through.
What to do: Get the cavity checked. An installer can look inside with a small camera, and fill it if it's empty.
Your EPC certificate assumes this
Floor
A fair shareSome heat goes down through the floor, especially if there are gaps.
What to do: Seal gaps between skirting boards and the floor. If you have a suspended floor, ask about insulating it from below.
From your EPC certificate
Cold spots
A small shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
Walls shared with neighbours
Very littleAir moving inside a shared wall can carry heat away.
What to do: Ask whoever checks your walls whether the shared wall can be sealed or filled too.
Assumed from your home's age and type
What we had to assume
- Draughts and air: Assumed from your home's age and type
- Walls: Your EPC certificate assumes this
- Cold spots: Assumed from your home's age and type
- Walls shared with neighbours: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.
Pick a link above to see which improvement it would open.
No recommendations matched
The same home as the first block, but none of the stored improvements is about a heat path on this list. No link and no fallback text appear.
Where your heat goes
Your walls are likely the main way heat leaves your home.
Based on facts about your walls, roof and windows. Your home's exact shape and how draughty it is are still assumed.
Walls
The biggest shareIf your cavity walls are empty, they let a lot of heat straight through.
What to do: Get the cavity checked. An installer can look inside with a small camera, and fill it if it's empty.
From your EPC certificate from 2014
Windows
A fair shareEven good windows lose more heat than an insulated wall.
What to do: Usually not the first job. Check the seals, draught-strip the frames and use heavy curtains.
From your EPC certificate from 2014
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
Assumed from your home's age and type
Floor
A small shareSome heat goes down through the floor, especially if there are gaps.
What to do: Seal gaps between skirting boards and the floor. If you have a suspended floor, ask about insulating it from below.
From your EPC certificate from 2014
Cold spots
A small shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
Roof
A small shareHeat rises, so a thinly insulated loft loses a lot of it.
What to do: A top-up to 270mm is usually a simple job.
From your EPC certificate from 2014
What we had to assume
- Draughts and air: Assumed from your home's age and type
- Cold spots: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.
Pick a link above to see which improvement it would open.
Walls already insulated
Walls, roof, windows and floor all say nothing needs doing. The report holds a wall and a loft recommendation anyway, and neither is linked, because the row says it isn't needed. Draughts still link.
Where your heat goes
Your walls are likely the main way heat leaves your home.
Based on facts about your walls, roof and windows. Your home's exact shape and how draughty it is are still assumed.
Walls
The biggest shareYour walls look insulated. They still lose heat because there's a lot of wall.
What to do: Nothing to do here first, unless a check shows the insulation is missing.
From your answers
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
Assumed from your home's age and type
Cold spots
A fair shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
Windows
A fair shareYour windows are already well glazed.
What to do: Nothing to do here first.
From your answers
Floor
A small shareYour floor looks insulated.
What to do: Nothing to do here first.
From your EPC certificate
Roof
A small shareYour loft looks well insulated, so the roof loses less than it could.
What to do: No top-up needed, unless the insulation has been moved or squashed.
From your EPC certificate
What we had to assume
- Draughts and air: Assumed from your home's age and type
- Cold spots: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.
Pick a link above to see which improvement it would open.
Mid-floor flat
A home above and below: no roof or floor row, and the heat shared with the neighbours above and below is not counted as a way heat leaves. The unknown-floor-level warning is reworded.
Where your heat goes
Your walls are likely the main way heat leaves your home.
Based on facts about your walls, roof and windows. Your home's exact shape and how draughty it is are still assumed.
Walls
The biggest shareYour walls aren't standard brick, so the usual cavity fill won't work.
What to do: Ask a retrofit assessor what insulation suits this type of wall.
From our reading of your photos
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
Assumed from your home's age and type
Windows
A fair shareEven good windows lose more heat than an insulated wall.
What to do: Usually not the first job. Check the seals, draught-strip the frames and use heavy curtains.
From your EPC certificate
Cold spots
A small shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
Walls shared with neighbours
Very littleAir moving inside a shared wall can carry heat away.
What to do: Ask whoever checks your walls whether the shared wall can be sealed or filled too.
Assumed from your home's age and type
Doors
Very littleDoors lose heat through gaps as much as through the door itself.
What to do: Fit draught strips and a letterbox brush.
Assumed from your home's age and type
What we had to assume
- We don't know which floor your flat is on, so we assumed homes above and below.
- Draughts and air: Assumed from your home's age and type
- Cold spots: Assumed from your home's age and type
- Walls shared with neighbours: Assumed from your home's age and type
- Doors: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.
Pick a link above to see which improvement it would open.
Loading
Shimmer in the shape of the card. The shimmer stops under reduced motion.
Where your heat goes
Loading where your heat goesNo floor area
What the query returns until the survey or a certificate gives a floor area.
Where your heat goes
We can't work this out yet, because we don't have your home's floor area.
Add your home's detailsCould not be worked out
Any other reason leaves out the floor-area sentence, which would not be true. The link stays.
Where your heat goes
We can't work this out for your home yet.
Add your home's detailsClassic variant
The classic dashboard palette. The classic page passes no handler, so the improvement line is plain text. Its first bar is the teal; the rest are neutral.
Where your heat goes
Your walls are likely the main way heat leaves your home.
Based on facts about your walls, roof and windows. Your home's exact shape and how draughty it is are still assumed.
Walls
The biggest shareIf your cavity walls are empty, they let a lot of heat straight through.
What to do: Get the cavity checked. An installer can look inside with a small camera, and fill it if it's empty.
In your report: Cavity wall insulation, £500 - £1,500, saves £160 per year
From your EPC certificate from 2014
Windows
A fair shareEven good windows lose more heat than an insulated wall.
What to do: Usually not the first job. Check the seals, draught-strip the frames and use heavy curtains.
From your EPC certificate from 2014
Draughts and air
A fair shareWarm air escapes through gaps, and cold air comes in.
What to do: Seal gaps around pipes, skirting boards and the loft hatch. Keep vents and extractor fans working, because your home still needs fresh air.
In your report: Draught proofing, £100 - £300
Assumed from your home's age and type
Floor
A small shareSome heat goes down through the floor, especially if there are gaps.
What to do: Seal gaps between skirting boards and the floor. If you have a suspended floor, ask about insulating it from below.
From your EPC certificate from 2014
Cold spots
A small shareHeat escapes where walls, floors and windows meet.
What to do: Not a job on its own. Ask your installer to treat these while they're insulating.
Assumed from your home's age and type
Roof
A small shareHeat rises, so a thinly insulated loft loses a lot of it.
What to do: A top-up to 270mm is usually a simple job.
In your report: Increase loft insulation to 270 mm, £300 - £600, saves £70 per year
From your EPC certificate from 2014
What we had to assume
- Draughts and air: Assumed from your home's age and type
- Cold spots: Assumed from your home's age and type
A rough picture from our model, not a measurement. It's for deciding what to look at first.
The technical figures are in your downloadable report.