DunRite Compares The Two Most Popular High-End Windows
Shopping for premium replacement windows often comes down to a choice between two standout products: the Andersen 100 Series and the Pella Impervia. Both are durable, energy-efficient, and backed by strong warranties.
Their differences in material, style, and price can definitely help homeowners decide which one fits best.
Let’s break it down.
Different Materials & Distinctive Styles
These two products are fairly similar in terms of how long you can expect them to last, and their energy efficiency. However, they are dramatically different in the materials used for the frame, which in turn, gives each one its own unique style.
The Andersen 100 Series is made of a proprietary composite that combines reclaimed wood fiber and a thermoplastic polymer called Fibrex®. It’s an improvement over vinyl, since it’s stronger and lasts longer, it handles extreme heat temperatures up to 150 degrees without sagging or warping, and the finish never needs painting or refinishing. The caveat? It’s a thick frame, with an average width of three inches per side, leaving less viewable glass area. It’s a distinctive look that not all homeowners prefer.
In contrast, Pella Impervia windows are made with a fiberglass frame that’s the strongest in the industry, making it perfect for large sized openings. It has an attractive modern look, with a thin frame that gives it a maximum glass viewing area. It’s a window with a tidy, clean appearance that’s ideal for a modern appearance. Originally designed for commercial buildings, the Impervia line is suitable for any climate, ranging from -40 degrees to 180 degrees. They come in a wider array of colors than the 100 Series.
DunRite Owner Sal Sucato speaks highly of Pella’s quality and customer service, and likes the clean mitered corners of the Impervia product.
Unlike vinyl windows, both products can be customized to have a different color on the frame interior versus the exterior. White interiors with a black or neutral exterior are a popular choice. Both can be expected to last 40 years or more.
When comparing the style, the different appearance of the Andersen’s 100 Series and Pella’s Impervia windows can be a motivating factor why a homeowner might choose one or the other.
Price can also be a factor, since the Andersen 100 Series costs less than Pella Impervia.
Both are excellent products with a robust warranty, and highly recommended.
Excellent Energy Efficiency
Now on to one of the most important features that every Sonoran Desert homeowner wants to know: energy efficiency.
If we compare a base product that’s similar across both brands, say a sliding glass window with Low-E3 glass, the NFRC ratings are very similar. Using data provided to authorized dealers when ordering product, the Andersen 100 Series comes in at a 0.29 U-Factor, which rates the amount of heat lost, and the Pella Impervia has a slight improvement at 0.27. The SHGC for both products is exactly the same at 0.21, which is a metric measuring the window’s solar heat gain.
These products are both excellent in terms of overall energy efficiency, which can be improved even further with available upgrades.
Introducing the new Andersen 100 Series Flush Fin
New this year, Andersen added a flush fin option to the 100 Series—designed specifically for stucco homes so common in Phoenix.
The flush fin slides over the original aluminum frame, covering it with a flange that blends seamlessly into the stucco. This makes installation easier and cleaner, while eliminating the need for major stucco patching.
It’s similar to the stucco fins offered by vinyl brands like Anlin and Milgard, and to Renewal by Andersen, but it’s brand new to the Fibrex line.
Best of all, it’s manufactured locally in Andersen’s Goodyear, AZ facility. As an Andersen Authorized Dealer, DunRite is fully trained in the installation process. Homeowners also enjoy multiple layers of protection: Andersen’s two-year dealer installation guarantee, DunRite’s lifetime installation guarantee, and the manufacturer’s warranty.
Choosing the Right Window
Both Andersen 100 Series and Pella Impervia deliver excellent durability, style, and energy efficiency. The best choice depends on your design preferences, the size of your openings, and your budget.
- Prefer sleek, modern frames with maximum glass? Pella Impervia is hard to beat.
- Want a durable upgrade from vinyl at a lower price point? Andersen 100 Series may be the right fit.
Either way, you’ll be investing in a high-quality product that will protect and beautify your home for decades.
Next Steps
Ready to compare in person? Schedule a free in-home estimate with DunRite Windows & Doors today. Our team can walk you through options, pricing and promotions to help you find the perfect fit.
You can also explore more tips in our free eBook before making your decision. Just reach out if you have questions, we’re here for you!
Published September 11, 2023
