Skylight installation is a relatively complicated process that may very well require a certain level of skill that most people just don't have. There are a lot of tools and materials that will be needed to effectively complete any skylight installation project, and it can take quite some time to do it as well. The amount of time it will take for you to install new roof skylights into your home will vary according to the amount of skylights you need to install, as well as how fast you are capable of working. Most people really cannot be bothered with doing the job themselves, and prefer to simply rely on the experience and skills of professionals. There are numerous companies out there and probably operating in your region as well who will gladly take on the task of installing roof skylights for you. Most companies will also offer the skylights themselves, and will additionally take care of everything related to the effective installation of these skylights. This will take the load off of your hands and make things a lot easier for you. If you insist on doing it yourself, you should be prepared to read up on the topic first.