Ensure you check for gaps, leakages, and condensation. This can be a sign it’s coming loose or wasn’t put in appropriately. Our bespoke secondary glazing units are approved for use in Grade I & II outlined properties and conservation areas. Even better, we offer Do it yourself secondary glazing kits https://dallashnquw.elbloglibre.com/26315602/slimline-secondary-glazing-soho-for-dummies