There are many, many companies online, local and international that you can choose to buy a frameless shower door. You can choose to pay someone else to come in and install it for you or you can buy a kit that can be shipped to you with all the supplies that are needed.
Frameless shower doors, of course do not have any aluminum frames that helps support them. Instead, all of the handles and hinges are attached through the glass itself. Therefore the type of glass that is used is much heavy and thick. The glass is also placed through a tempering process which gives it the look of high fashion and helps it to be a lot more durable. Because of the thick, heavy glass and the tempering process that it goes through it is not easily broken. However, since there is always that possibility, you can feel safe knowing that the temper process will cause it to break into very small, tiny pieces, which helps reduce the risk of injury.
A lot of people choose this type of shower door because it gives off the feeling that the room is bigger or more spacious than it is. It also helps protect the floor from water, which helps keep your bathroom dry and clean. You can get glass doors with designs, cloudy or completely see through, depending on your preference. Finally, this type of shower is easier to clean and does not get the mold build up that other bathroom showers tend to have. One good tip to remember when keeping it clean is to always try to wipe it down after each and every use to help prevent soap film from building up.
If you choose to install it yourself, make sure that you take any measurements after any tile or marble has been installed. This type of shower door is custom made, therefore, correct measurements for installation is extremely important.