There are different WordPress service providers which may lead you to wonder what exactly it is that these service providers offer. You may ask whether they all offer the same service types and deliver in the same professional way or whether there are different services out there.
The answer is that, WordPress being a flexible script requires a lot to be done to it. Every online store owner would have a different requirement with regards to WordPress which means no two service providers may offer the same service type. You will find a WordPress service provider that does nothing other than helping you to install WordPress in its basic form on your webserver.
This is something that you could also do yourself if you follow certain instructions. But because not everyone is comfortable doing these things themselves, you will find it to be a better option to get things taken care of by professionals. Moreover, you will find a web development company actually offering to customize your version of WordPress installation in terms of themes and plugins to make yours unique to yourself. This is important for stores who love stuff to be unique to them. These store owners do not like their installations to look identical to many others.