Installation, maintenance and repair occupations can be found in virtually every sector of the economy. Many such positions combine all three tasks, though not always. For example, licensed and experienced applicants can obtain professional installation jobs at home supply or appliance stores. The plumbing, electrical, and heating and air conditioning industries are primary sources for full-time maintenance jobs. General maintenance and repair workers often find employment in building supervision or home handyman repair jobs. A high school diploma and appropriate specialist certification are typical requirements for basic installation, maintenance and repair jobs, though related experience and a knack for understanding how things work is often an acceptable substitute. One of the primary benefits of working at maintenance mechanic jobs is the diversity of tasks each day presents to you. These jobs can also lead to further specialization and/or a supervisory role. For those specializing in the maintenance and repair of industrial or precision equipment, a post-secondary degree may be a requirement of the trade.