Before you buy...
1) Buy new, buy efficient
Even if your freezer has all the space you need, you might still consider replacing it, especially if it's over 12 years old, as it would probably be rated G for energy now. Freezers are one of the most energy-guzzling appliances to run because they're on all the time. The difference in running costs between an A and A++ energy-rated model is twice as much and could be as much as £20 per year according to the Energy Saving Trust.
2) Clever technology
Look for freezer features such as frost-free, which keeps ice crystals at bay so you never have to bother defrosting, ot low frost, which means you have to do it less often. If you want to freeze food faster, sealing in more of the flavour and nutrients, look for fast-freeze models that boost power. There are several models that have an audible alarm or warning light that tells you when the door isn't shut properly, while some come with the latest clever storage systems with specialist compartments for pizzas, ice creams and ice cubes.
Try the AEG American-style Side by Side Fridge Freezer, £1,519; for similar, Bhs
Ready to buy? Click on to flick through our pick of the best freezers
Photograph by David Parmiter