Cleaner
A cleaner is a type of industrial or domestic worker who cleans homes or commercial premises for payment. Cleaners may specialise in cleaning particular things or places, such as window cleaners. They may clean offices at night or houses during the workday.
Skilled labor identifies job that call for secondary education, specialized training or a learned skill-set. These can be either blue-collar or white-collar jobs with varied amounts of training or education that is tied to income level or status.
The term ‘semi-skilled labor’ describes jobs that have a few basic requirements, which means not just anyone off the street can apply for them. These jobs call for some skill since they’re have some degree of complexity. However, they do not call for highly-specialized abilities.