Your certification is valid for five years. Recertification after five years is as simple as passing an online, open book recertification exam, filling out the recertification form, and paying the fee.
If you are currently certified as a VSI Certified Installer and need to recertify, you do not need to register. Just log in via the button below using the username and password from your recertification correspondence. The five year recertification fee is $99.