Installing Joomla components is a very easy task. You can do this from the Joomla administrator's panel.

Use the Installers --> Components option. Upload the component's archive file using the Browse button. You can also check the installation instructions which should be included in the component package.

If you have problems installing Joomla components yourself, ask your host for assistance. SiteGround provides the best Joomla hosting and such requests are handled with ease.