Hi there! I have a garden on 3 tiers the they all measure about the same, 20 x 25ft, the first is just lawn so it only needs mowing, the second the same as the first, the third it is over grown with weeds and brambles, their is grass underneath the weeds all i want doing is weeding and regular maintenance of my garden, and how often should it be done to keep up with it? As i am a woman i do not want to be over charged so if anyone can help in giving me the average price and what would be included in it so i have a starting block when getting quotes?