We have gradually been setting up secondary glazing over the past couple of yrs fom Clearview. Have just mounted to a tricky bay window and very pleased with the end result. Acquired 2 units for our entrance bedrooms as we have been on a noisy major road. Installed them yesterday https://josephz100pgw8.iyublog.com/26149110/everything-about-noise-reduction-windows-in-soho