I had my son tutored for 2 years with Gill Hall [up-a-level.co.uk
], 07736400658 (my son is the very left in the picture) and we were very happy with the result. He managed to get an offer from a grammar school and most importantly our first choice school Dulwich College, where we accepted a place. Tutoring was once a week for 2 full hours for a very reasonable price, according to what I have heard from other families. He enjoyed the sessions even though it was extra work and was very happy when he noticed his progress. I can certainly recommend her.
Best wishes and good luck to your son!