Like most things about your home, if you have a skylight, it may need to be repaired or tended to from time to time. The issue with skylights is that they are an addition to the roof, so over time the flashing and the sealing products may break down. If the skylight is not repaired, this can lead to leaks when it rains and may allow for the air outside to get into the home, causing the home to not be nearly as energy efficient as it should be. Skylight repair usually involves replacing the flashing and caulking the area where the roof window meets the roof. In many cases, this can be done without the help of a professional so long as you have a bit of time and can purchase the right products and tools. Tending to these areas from time to time will ensure that there is never a leak and will also ensure that your home remains energy efficient.