British family looking for extra pair of hands

Hello, kids are 3,4, and 6 years old. They go to school, we just need extra pair of hand helping in the kitchen, cooking basic food, cleaning and doing the clothes ironing. on the odd occasion babysit when the kids are sleep from (8pm) we may go out as a couple for dinner and leave the housekeeper/nanny with the baby camera monitor incase they wake up. days off are flexible because of my profession.