We don't use screws because our customers don't like them. We take the time to clad your windows the same way we would clad our own, period.
Their "system" consists of screwing pieces to the outside of the window elements. This picture exposes several flaws with this method. Notice that much of the existing painted wood areas remain exposed and will continue to deteriorate.
We are not on a production line, we don't have a "system". When we clad your windows there will not be any fasteners visible because your home should not look like a utility shed. We pay close attention to function and cosmetics to give your windows the look that you can be proud of. We like that and, most importantly, our customers like it that way.
Please see our FAQ page for more information.