How much does a skylight cost? For the materials, expect to pay a low of about $250 for a 2-foot-square double-dome plastic skylight and up to $1,500 for larger, standard-sized roof windows with all of the options. When it comes to custom skylights, the sky is the limit.
Because there are so many variables, the only way to get a clear idea of price is to figure out what you want and call dealers. Installation costs are equally difficult to peg because they’re dependent upon the type of job. Installation starts at about $400 and can run up to several thousand dollars.
To locate skylight dealers, look in the telephone directory or on the Internet for “Skylights” or “Windows.”
