Certainteed Vinyl Windows / Viwinco / MI Windows
Certainteed, Viwinco & MI Windows Vinyl Windows, NON WARRANTY - Certainteed, Viwinco & MI Windows
I purchased about 20 of the Certainteed windows in 1992. The cover of the warranty stated very clear (LIFETIME WARRANTY, LIMITED NON-PRORATED) In 1992, the Certainteed windows were made by Viwinco in PA.in Certainteeds warranty it also states, they only warranty the vinyl lineals and not any part ...