It is always a good idea to prepare well for English language as UK home office visa application requires all overseas international students to have at least band five in IELTS or equivalent, there are many free and paid resources to prepare for this exams you may try this link to find some ideas or books English language books and study material for UK Visa
How to apply UK student visa,An easy step by step guidelines, information for overseas students those looking to study abroad as international student in U.K, Germany, Ireland, Learn and prepare your self before going to speak a consultant or apply direct by your self .