UK Home Insulation Calculator

Calculate potential energy savings from insulation improvements and check ECO4 grant eligibility

Insulation Savings Calculator

Quantify energy savings and costs for different insulation measures

Property Type

Property Age

Floor Area (m²)

Total floor area

Wall Type

Pre-1930 usually solid, post-1930 usually cavity

Loft Insulation

Wall Insulation

Floor Insulation

Window Glazing

Annual Heating Bill (£)

UK average: £1,200

Heating Fuel

Average Temperature (°C)

Typical: 18-21°C

Receiving Qualifying Benefits

Low Income Household (under £31,000)

Proper insulation can reduce heating bills by up to 45%. The ECO4 scheme offers free insulation for eligible households.