Transfer OPENCART website from one Hosting company to a New hosting company

General information for the website: THE SITE IS ALREADY DESIGNED BUT NEEDS TO BE MOVED TO A DIFFERENT HOSTING COMPANY Description of every page/module: I have an opencart website with customised design and features and back office plugins hosted with one company. I wish to move the site to another hosting company so that the design and functionality and everything will remain the same. So to MOVE hosted file from HOSTING COMPANY A to HOSTING COMPANY B The content and functions in front and back end must remain the same. Description of requirements/features: When replying please make sure that it will function the same with no difference. Also important to let me know how long to complete this task. Thanks. Extra notes: