AEG built-in frost-free fridge freezers are fully integrated, fridge-over-freezer models that sit behind a cupboard door so they match the rest of your kitchen. Both the fridge and the freezer defrost automatically, so ice doesn't build up and you never need to empty the freezer to clear frost. They suit a new kitchen fit, or replacing an older integrated appliance with one that is easier to look after.

The biggest difference between models is how the space is shared. Most give priority to the fridge, with about 182 to 207 litres of fridge space above a 62-litre freezer. That works well if you buy fresh food often and freeze only a little. If you batch cook or buy frozen food in bulk, a 50/50 layout gives you 88 litres of freezer and 154 litres of fridge. Energy ratings range from C to E, so compare running costs as well as capacity. All of them are quiet, at 34 to 35 dB.

Before you buy, check how the door is fixed. Most use a sliding hinge, where your cupboard door is fitted on rails and glides with the appliance door as it opens. A fixed-hinge option mounts the cupboard door directly onto the appliance door. Your housing and door need to suit the hinge type. Controls range from electronic buttons with an LED temperature indicator to touch controls with a digital display. Start with the fridge-to-freezer split you need, then pick the hinge type your kitchen takes. For more options, see all AEG built-in fridge freezers or the full AEG product range.