When it comes to installing vinyl fences you have two options, doing it yourself, or hiring a contractor or a landscaper to do it for you.
If you have zero experience in fence installation and you have a higher budget then I would recommend you have someone else install the fence for you.
In this case you should look to hire a landscaper rather than a contractor.
The contractor will try to sell you additional products (much more so if he's/she's from the same company you bought the fence from).
He or she will also not care or not be concerned with where the fence will go.
They will simply ask you where you want it installed and that's where they will put it.
With a landscaper it is different.
First of all they don't have inventory of any additional parts so they won't try to sell anything to you.
Secondly they are experts at landscaping so they will have an idea of how to make your fence as functional and as beautiful as possible.
Plus they can help (if you need it) with additional work like putting in bushes, shrubs, and flowers around the fence to make it pretty.
The landscaper will also be better at customer service because the nature of their job is to have long-term customers so they act that way.
The contractor will simply install the fence and be on his or her way.
If you decide to do the installation of the vinyl fence yourself then you should consider investing in "DIY" book you can find at the library or local bookstore.