JWG Building Restoration has provided sealant replacement services for many years, so we know the ins and outs of all the requirements needed to get the job done efficiently. There are three main methods of sealant application. Each has its own advantages depending on the size of your installation project, and how much time is needed to spend sealing. Whether using a penetrating or topical material, you have to carefully consider the specifications of your project before determining which method will work best.