Childminder (nanny) to mind two girls in our home

We are looking for a childminder (nanny) to look after our two daughters aged 18 months and 6 years old in our own home from mid February. Our eldest daughter is at school (walking distance from our house). We need someone to mind our children 3 days per week (Tuesday to Thursday) from 9am to 5pm /5.30pm (approximately 25 hours per week) We are living in Laurel Lodge.