How many hours cleaning for a big house

[MessyHouseMe]

My home is admittedly a cluttered state at times and I don't have a lot of time. I called out a deep cleaning company for a quote and they said 1000 for a full deep clean which I declined.

A cleaner has said 4hrs a week would do it. This is 3 bedrooms, 3 bathrooms and a large kitchen/lounge. She seems to be thorough, polite and needs the work. Is this roughly how many hours you'd expect a job like this to take? I'm used to scrimping with cleaners but now I think id rather get it done properly.

We've got quite a big house (5 bed) - we have 3 hours every other week for a deep clean of some areas.
Cleaner will do kitchen, downstairs bathroom, ensuite bathroom, hoover and mop all of downstairs, hoover of landing and master bedroom in that time. I do the other bedrooms and generally keep on top of things in between.
Depending on the exact size, 4 hours weekly might be enough once on top things.

Had a cleaner start last week and her first day was 5hrs. I don’t have clutter but key areas needed deep cleaning and she took her time over the rooms and made an enormous difference. We have 4 bedrooms, two receptions, kitchen , utility , large hall and staircase. My house gets very dusty too - we have her once a week and I am expecting her do to 3-4 hrs every Friday. Best thing I have done in years

Thank you @rogueone - it seems like a lot (60 pounds each week for 4hrs) but i do think she made a big difference to my place and even the children were a bit in awe of how tidy it was. Im hoping this will continue.