We do modules for Joomla CMS. You can see all our modules at Module Demo Link. Still if you need, any custom type module, then we can do it for you. It generally takes 24 hour to 48 hours to complete one module. Time depends on the features you need on your module.
You have to just show us the effect/style/application link or describe us how and which features you need for your module. Then we take care about the rest of the development process. Before delivering, we will show you the demo, if you need any changes, then we do so.