I've recently started using Handy.com and have been really impressed so far. You can schedule a cleaner on repeat, eg: same day every week/fortnight. However, it's really easy to change the day if you give them 24 hours notice. Responsible prices and super flexible. I also like that you can add extras week on week, like cupboard interiors, deep clean of fridge.
I have a referral code for £10 off your first clean: [handy.com