There is a possibility if you already have a skylight in your home that it may need replacement for any number of reasons including the fact that the glass is cracked or that it leaks. Arranging for skylight replacement is not difficult but you should also consider this as an opportunity to explore the latest options in skylights. One of the current features is to get double glass panels for the skylight in order to increase its strength and insulation. Doing this may also result in a reduction of your energy bills. These days, it is also possible to get replacement skylights that do not use glass but use plastic or acrylic instead. Acrylic is a good alternative as it can be purchased in a variety of shades and it is resistant to ultraviolet light. Even plastic panels for the replacement are a viable option and if you live in an area that is prone to extreme weather conditions, then this may be the more economical choice. Having to replace your skylight also gives you the opportunity to consider changing the shape of the structure albeit within the same frame. It is possible to create domed or even angled skylights easily to sit on your existing skylight frame. Once you have determined these issues, always consider glazing for better thermal efficiency and insulation for external noise.