There are all kinds of singing schools in UK . The truly reliable ones are the ones where they actually teach you how to sing by showing you physically. Watch out for the ones which rip you by giving you impossible to understand instructions which are chock a block with jargon. If they cannot demonstrate physically, then stay away. Most important of all you must realize that your voice is unique. It can be made to achieve undreamt of heights with proper training. So check out the credentials of the teachers before you trust your voice and dreams to anyone.
Adults and children can benefit from the guidance of a qualified, experienced professional. Students should consider both private and group instruction depending on their goals. Unless the singing coach of UK under whom you train is careful about teaching you correct singing techniques, you can do incalculable damage to your vocal chords. These techniques should never be the kind which goes against nature such those which require incorrect posture, breathing, phonation, throat and mouth position, registration shifts and/or vowel modification. Nature has a nasty way of getting its own back when you least expect it and the damages might show up as tonal defects like tremolo, a tendency to sing off-key, excessively nasal, sharp, foggy, hard or weak tone, or even a lack of flexibility.
It is vital to follow a correct diet which has less harmful reflux elements such as fewer acids, caffeine, spicy and greasy foods. Smoking is a very strict no-no if you want to promote a healthy voice. Gargling with warm water and salt after meals will help heal vocal folds. Taking long periods of rest without whispering will give the voice a necessary break when you have overstrained it for some reason. Trust only the teacher who is aware of the ways a singer can damage his/her voice. The best tip that any teacher of a singing course will give you is to learn to sing with your heart not just your voice.