I am writing to express my severe disappointment with the two windows i purchased and had installed by Premier window systems. i was unaware premier sub contracts their window installations. Since the installation , both window units have exhibited significant defects.Ron tried to tell me the window rot out because of our dogs sit on the seat of the window. I have had 4 other window companies at my house . They said The window needs to be appropriately set on a durable, moisture-resistant substrate. The use of either pressure-treated wood or a suitable high-density styrofoam insulation material is required to provide a stable, long-lasting sill support that prevents moisture transfer and material breakdown. Premier did not do that for this install. Ron did give me a quote to do this if they were to install a replacement window. read more