For the most part, people do their own housework and yardwork.
But, it is also not unheard of for middle income families to have someone come in to provide weekly cleaning service or lawncare and if you've got the money and the desire, live-in nanny/housekeepers are also available.
The only difference between here and back home, is that the live-in nanny/housekeeper is not obligated to work more than 40 hours a week unless he/she gets paid overtime because of the labour laws.