- Agree, install matters, but I’ve noticed differences too. Had both brands in my old place—Kolbe in the den, Andersen in the living room. Kolbe alway...

- Had the same concerns when I moved in—vinyl was already installed. - They’ve held up okay, but I do see a little flex on the west side where the s...

- Glass is heavy, but nothing beats it for light. - Polycarbonate scratches up way too fast for me—can’t see through it after a couple seasons. - ...

- Definitely use a good hairdryer—makes a huge difference. - Found it easier to start sealing from the top down, smoothing wrinkles as I go. - Also, c...