SFW Construction is an expert at diagnosing and repairing leaking skylights. It is essential to understand that 95% of the time, it isn’t your skylight that is the problem. It is sporadic that a skylight has a blown seal or a defect in frame or assembly. In almost every case, there is an issue with the installation of the skylight. Primarily the flashing kit has been installed improperly, or the flashing is not correctly integrated into the roof underlayment (waterproof membrane).