Made of space-age composite materials, Starmark windows give homeowners a whole new class of windows to explore.
We’ve put our Starmark windows up against Andersen Renewal windows to see how they do. Here’s what we’ve found.
- Andersen Renewal windows are made from Fibrex, a patented material made of approximately 40% wood fiber and 60% vinyl (thermoplastic polymer). While Fibrex does insulate much better than aluminum, it’s not quite as good an insulator as 100% virgin cellular vinyl.
- Starmark windows are made of 100% virgin cellular vinyl. Cellular vinyl is combined with an agent to create a close-cell foam structure. This unique structure traps micro-pockets of air inside the window frames, enhancing the thermal performance of the windows. Since there are no wood components in the windows, they perform perfectly even in high-moisture conditions.
- Andersen Renewal windows have a U-factor of .29. This number rates the heat loss of a window assembly and lets consumers make unbiased comparisons about how windows will perform. The rating method was developed by the National Fenestration Rating Council (NFRC), and Energy Star uses U-factors to recommend energy-efficient windows for particular climates. According to nationally recognized standards, high-performance double-pane windows can have U-factors of 30 or lower, so Andersen Renewal windows fit within that range—just barely.
- Starmark windows have a U-factor of .19, which is a much better energy-efficiency rating than Andersen’s Renewal windows. Our Starmark windows take advantage of a multitude of energy-efficient features to receive such an excellent U-factor rating. These features include innovative UV glass coating, glass spacers, and our cellular vinyl material. A lower U-factor rating translates directly to energy savings for you.
- Andersen offers a 20-2-10 Limited Warranty on their Renewal windows. This translates to a limited 20-year limited warranty on the insulating glass, a 2-year limited warranty on installation, and a 10-year limited warranty on the windows’ non-glass components, such as locks, lifts, hinges, and handles. While this warranty does offer homeowners a measure of protection, it doesn’t ensure a lifetime of assurance against defects.
- Starmark windows come with a Lifetime Warranty, good for as long as you live in your home. Under our Lifetime Warranty, we cover our windows, their moving parts, the fiberglass window screens, and the insulated glass units. If you discover problems with your Starmark windows at any time, just call us and we’ll fix the problem. You don’t have to count back to your installation, hoping it hasn’t been more than two years. You don’t have to feel that you’re on your own. We back up our windows and our workmanship with the best warranty in the industry.
- Andresen windows have a fine reputation, and you’ll pay for their extensive advertising and reputation. Andersen Renewal windows are good quality windows, no question, but they’re not better than our Starmark windows.
- Starmark windows are about half the price of Andersen Renewal windows. We have developed business practices that keep our costs low, and we pass those savings on to our customers. We challenge you to find a better product at a lower price. We’re proud to offer such cutting-edge, quality windows at such an affordable price.