The time it takes to deep clean a house depends on the size of the house and if you're doing the deep cleaning of the house yourself or if you have some help.
For me and my 1,500 square foot house I can deep clean the house myself in about 2 days if I work hard at it or it may take 4 to 5 days if I'm being more lazy and only cleaning the house a little at a time.
I only really deep clean my house faster when I have company coming over but I mostly keep my house clean anyway by doing a little cleaning here and there and wiping up any spills or food etc off counters, floors etc everyday right when it happens.
If you keep most of your house clean all the time then you will be able to deep clean the house yourself in a few days to as little as 1 day.