Your BER explained

A BER helps you understand the energy efficiency of a home and provides a roadmap for improvement.

What the rating means

BER ratings range from A1 (best) to G (worst). The rating is based on standardised assumptions about occupancy and usage, allowing homes to be compared on a consistent basis.

What influences the result

• Insulation levels and construction type (walls/roof/floor)
• Windows and doors (U-values, glazing type)
• Airtightness and ventilation approach
• Heating system efficiency and controls
• Renewables (where applicable)

Advisory report

Your BER certificate is accompanied by an advisory report which outlines measures that could improve your rating.