It's a major undertaking to install a skylight. If it's a traditional skylight, then yes, the installation process might stretch over multiple days. With Solatube, installation takes only a couple of hours. That’s because Solatube devices require no changes to be made on framing, and there are no major ceiling or wall repairs required inside. Rather than contend with rafters and joists, Solatube devices cleverly fit between such components, with their patented fastening system, adjustable-length tubes, and angle adapters all making for a fast and painless remodeling project. And Solatube Premier Dealers are factory-trained in installation.