Click each part of the house to see how much heat escapes from there in a typical UK home. Toggle between uninsulated and fully retrofitted to see the difference.
Click any region of the house — or any of the six cards around it — to see exactly how much heat escapes there and what fixes it.
ECO HOME UK installs every measure shown above — contact us today to find out what’s suitable for your home.
Book a free retrofit assessment →Heat loss percentages are based on Energy Saving Trust and BRE research for a typical uninsulated UK home. Real figures vary depending on house age, construction and occupancy.
Uninsulated home (baseline):
Fully retrofitted home (after measures): Total absolute heat demand drops by 50–70%. The percentages above shift too — once walls and loft are insulated, air leakage and windows become the dominant remaining losses, which is why airtightness and triple glazing become higher-priority later in the retrofit sequence.
Sources: Energy Saving Trust home insulation research, BRE SAP methodology, AECB retrofit guidance.