Good for you. We are from Canada. We are currently paying $37 an hour for twice a month house cleaning. Costs about $4-500 a month. I think you could have a really good business out of it.
Labour has always been expensive in the UK & it has become even more expensive since Brexit & Covid. A call out charge is around £60 & the cost of whatever work goes on top. Hence people get charged for £100 often for nothing. Cleaning ladies normally charge £15 to £20 an hour but if you are doing it as a company, you will need to make sure that VAT is included as you will need to do your VAT return. For an average size house with a deep clean, you can probably charge anything from £200 to £350. You can also add in your capital cost into the company as set up cost like your computer & cleaning material or machine for tax deduction.