A friend of mine came round and was appalled at the amount of ice that had built up in the freezer section of my fridge.  Before I could stop him, he had taken a large kitchen knife and had started to chip away at it.  Yes, you’re ahead of me, after only a couple of large hacks with the knife, he had punctured some sort of section that had gas in it.
That was in the days when fridges used chlorofluorocarbons (better known as CFCs).  It was later phased out because they discovered it was making a whole in the ozone layer.  Anyway, “I’m glad that happened” he said.  “You needed a new fridge anyway”.

These days an enormous amount of money can be lost when your freezer or fridge breaks down.  Food is inedible, wine goes warm and you can’t even make yourself a cup of tea because the milk’s gone off.  So, it’s imperative to get a dedicated manufacturer engineer on the scene as fast as possible.  Rest assured you don’t have to buy a brand new item!  If the processor or fan has become noisy, the thermostat or temperature gauge is not “on point” or there’s that high build up of ice, the problems can be rectified.

My advice is to go online and find a company that offers fridge repairs with a “no fix no fee”policy, fast attendance service, with a good, reliable quote upfront.  Their website will detail the brands of appliance they repair and, indeed one of the best firms will probably be partners with the UK’s top kitchen appliance brands.  That’s going to give you complete peace of mind.