Yes, reputable manufacturers typically provide warranties for their roof windows and skylights, and many installers also offer a labor warranty, although labor warranties often don’t last as long as the manufacturer’s warranty. A warranty from a skylight manufacturer is helpful in the event of leaks or other damage down the road on this type of home feature. The length of time and the terms of the warranty may vary, so it's important to review the details before making a purchase.

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.

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.

Roof windows and skylights can be installed on various roof materials, but skylights are usually the only option that you have if you have a flat roof or a roof with a slope under 15 degrees. In these cases, roof windows have too high of a risk of leaking to be suitable options. The specific installation requirements may vary, so it's important to hire a window replacement contractor. Certain types of roofs may not be ideal if they limit the size of the window or if they pose an issue with rainwater collecting around the area.