Thanks all! Very much appreciate all your responses.

Will let my pal know!!

Again have to second Likeminders - have to say they have been amazing and so helpful however the short notice.... its so nice to find an amazing local business to support ...

We regularly use Likeminders, and I have always been pleased with the quality of the sitters they send out. We have had everything from maternity nurses to medical students and full time nannies.
I had a friend who came to London for work for 2 weeks, and they found a professional nanny to look after her 4 year old little girl. She was excellent.
I highly recommend!

Likeminders babysitting agency will almost certainly be able to sort you out - you can make a one off booking without being a member, you just pay a higher rate. They are all vetted and you get a profile for your sitter but obviously it's not a sitter known to you if it's a one off. Have used them at short notice and been very happy.

Hi all

My friend is visiting London with family including her two little ones end of March and she is looking for a reliable and recommended Babysitter for one evening whilst her husband and her go out for dinner.
They will be based in Notting Hill so not exactly local but I was hoping someone could recommend someone or an agency?

Thanks!!