Liebherr built in fridge freezers sit behind your own kitchen furniture doors. Most are fully integrated fridge-over-freezer models from the Pure, Plus and Prime series, made for tall housings, with fridge space from about 175 to 270 litres. For larger kitchens there are also big Monolith and Premium Plus models, and side-by-side pairings that put a full-height fridge next to a full-height freezer.

Nearly every model is NoFrost, so you never have to defrost the freezer by hand. You can browse these in Liebherr built in frost free fridge freezers. There are also a few Liebherr built in non frost free fridge freezers, including a SmartFrost model, which reduces ice build-up so you need to defrost less often. The split between fridge and freezer space varies too. 70/30 is the most common, 60/40 gives more freezer room, an 80/20 option suits households who mainly buy fresh food, and the side-by-side models offer 50/50.

Liebherr's fresh food features are worth comparing. BioFresh, found on some Plus, Prime and Monolith models, adds drawers with their own cooler, humidity-controlled climate to keep fruit, vegetables, meat and fish fresh for longer. EasyFresh, on other models, is a humidity-controlled crisper for loose fruit and veg. The Monolith fridge freezers with IceMaker and InfinitySpring make ice and dispense water inside the fridge, so they need a mains water connection. Connectivity differs as well. Some models connect to Liebherr's app out of the box, others need a smart device box bought separately, and some can have one added later. Noise levels range from a quiet 29 dB on some compact models to the high 30s on the largest.

Before choosing, check how your furniture door will be mounted. Fixed hinge (door-on-door) models attach the kitchen door directly to the appliance door for a sturdy fit, while sliding hinge models move the furniture door on runners. Measure your housing and settle on the hinge type and storage split. Then decide whether BioFresh drawers or an IceMaker are worth having. If you'd also like to compare freestanding designs, see the full range of Liebherr fridge freezers.