Yes, you can install skylights on an existing roof, and it’s a common service that many homeowners opt for, especially on older homes built when skylights weren’t as prevalent. The installation process will be a bit more involved, and the design and planning process will take longer, meaning you’ll pay more to install a skylight on an existing roof than you would in new construction. The process involves cutting a hole in the roof, moving rafters, if necessary, and installing and sealing around the skylight.

A skylight's ability to withstand hail depends on factors like material quality and thickness. Impact-resistant options, such as tempered or laminated glass, fare better against hail compared to standard glass. Proper installation and regular maintenance also contribute to their resilience. While smaller hailstones may not pose a significant threat, larger ones can cause damage. Consider skylight protection methods like covers or screens in hail-prone areas to enhance durability and minimize potential harm.

In most cases, installing skylights will add value to your home, making them a worthwhile investment for many homeowners. Buyers are often attracted to the aesthetic appeal of skylights, as they make rooms feel brighter, airier, and more spacious by introducing natural light without compromising privacy. Beyond aesthetics, skylights can offer monetary benefits by potentially reducing energy bills. Additionally, models that can be opened provide extra ventilation, which is particularly useful in hotter climates for allowing accumulated hot air to escape from the ceiling. However, the return on investment depends on several factors. To maximize value, it's crucial that the skylights are installed by an experienced professional to avoid risks like water damage, which can deter savvy buyers. Regular maintenance and cleaning are also important. Furthermore, choosing the right frame and glazing materials for your specific climate will enhance their performance and appeal. While skylights are generally seen as an asset, homeowners should also consider the initial cost, which averages around $1,500 for installation.

While it is possible to install a skylight as a DIY project, it is not recommended. Skylights are the most likely type of window to leak due to their position on the roof. Even minor mistakes during installation can lead to significant water damage and high repair costs. Additionally, working on a roof is dangerous, especially when maneuvering heavy, bulky windows. Due to the required roof modifications and the need for proper sealing and structural safety, hiring a professional skylight installer is strongly advised to avoid costly long-term issues.