A noisy toilet can be exceptionally annoying especially during the night or if you just want some peace and quiet. There are a number of noises that can come from your toilet cistern that can indicate certain problems with your toilet cistern. A loud vibrating noise could mean that the flapper is not functioning properly. This may need to be adjusted or replaced.
A groaning noise may mean that there is a malfunctioning valve that controls the water refill. This may also require the replacement of the flapper or fill valve.
Whatever the noise it is always a good idea to look further into the problem. Contact a professional and expert plumbing company such as 24 Hour Plumber where the source of the problem will be repaired without fuss.