Deep cleaning means a thorough, intensive cleaning that goes beyond routine tasks, focusing on hard-to-reach areas and removing deeply embedded dirt, grime, and bacteria for a healthier, disinfected environment, often involving moving furniture and cleaning neglected spots like behind appliances, inside cabinets, and on top of fixtures. It’s a less frequent, time-consuming process that aims for a higher level of cleanliness than standard cleaning, tackling build-up to prevent germs and maintain efficiency.