A domestic energy assessment evaluates the energy efficiency of a home, identifying ways to reduce energy consumption and lower costs. It typically involves examining insulation, heating systems, lighting, appliances, and overall energy usage. The assessment results in an Energy Performance Certificate (EPC), which gives the home a rating from A (most efficient) to G (least efficient).

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These assessments are useful for homeowners, landlords, and tenants looking to improve their property's energy efficiency and reduce environmental impact. They’re also often required when selling or renting a home in the UK.