Hi,
Please provide your existing site link and your current site is develop in which framework?
You want from scratch or already have?
We are working in Codeigniter , Zend ,Cake PHP, Smarty, Laravel , Ajax, Jquery, Magneto,opencart, Wordpress, Yii framework, PHP/MySQL, Mobile APPS (Android and IOS) etc.
Please open the chat so we will discuss more about the project .
Thanks