Energy Assessor Tools

Useful calculation tools for domestic energy assessors and retrofit assessors. Always double check your results.

EPC Data
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EPC Data

Find existing domestic energy assessments on a property.

EPC Data
Bay Window Calculator
Bay Window Calculator

Calculate the area and heat loss perimeter of different types of bay windows.

Bay Window Calculator
Window Data
Window Data

Record window data such as direction, window type, and more. Automatic calculations of window sizes. Requires Android or iOS for compass.

Window Data
Area, HLP and PWL Calculator
Area, HLP and PWL Calculator

Calculate the area, HLP and PWL of a property with calculations stored in the browser.

Area, HLP and PWL Calculator
CWI Calculator
CWI Calculator

Calculate Cavity Wall Insulation Area with this calculator.

CWI Calculator