Unified Home Remodeling

Expert Window Comparison: Pella Impervia Series vs. Andersen 100 Series

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Choosing the right windows is a critical decision for any homeowner. It affects not just how your home looks but also its comfort, energy efficiency, and value. This guide compares two popular composite window brands: Pella Impervia and Andersen 100.

You’ve likely heard of these names if you’re in the market for new windows. Pella Impervia is known for its durability, while the Andersen 100 series is acclaimed for its style and affordability. But when it comes to making a choice, which one is right for your home? We’ll break down the key differences in construction, design, energy efficiency, and cost, giving you the straightforward facts you need to make an informed decision.

Window Brand Overview: Pella Impervia vs Andersen 100 Series

Pella Impervia

Pella Impervia is a line known for its robust fiberglass material. This brand has built a reputation around durability and strength, qualities essential in the fluctuating Long Island weather. The Impervia series is particularly noted for its resistance to warping, rotting, and fading, making it a long-lasting choice for homeowners.

Key Features:

  • Made from Duracast® fiberglass composite, known for withstanding extreme temperatures.
  • Variety of styles and finishes to match different home aesthetics.
  • Energy-efficient options are available to help reduce heating and cooling costs.

Andersen 100 

Andersen 100, on the other hand, is a series celebrated for its blend of style and sustainability. Crafted from Fibrex® composite material, these windows offer the strength and insulation of wood with the low maintenance of vinyl. Andersen 100 is a choice for those looking for both aesthetics and environmental consciousness.

Key Features:

  • Fibrex® material combines the strength of wood with the low maintenance of vinyl.
  • Wide range of color and style options, catering to diverse architectural styles.
  • Energy-efficient designs to help keep your home comfortable year-round.

Material and Construction

Replacement windows require quality materials and construction, especially in New York, where the climate is unpredictable and harsh. Here’s how Pella Impervia and Andersen 100 windows stack up in these areas.

Pella Impervia Windows:

  • Material: Pella Impervia windows are constructed using Duracast®, a patented fiberglass composite. This material is known for its superior strength and durability. It’s resistant to warping, swelling, and rotting, even in extreme weather conditions.
  • Construction Quality: The windows are engineered to withstand high temperatures and harsh conditions, making them an ideal choice for variable climates. The fiberglass material also offers excellent thermal efficiency, helping to keep homes warm in winter and cool in summer.

Andersen 100 Windows:

  • Material: Andersen 100 windows are made from Fibrex®, a composite material that blends wood fiber with thermoplastic polymer. This combination results in windows that are twice as strong as vinyl and resist fading, chipping, and peeling.
  • Construction Quality: The use of Fibrex® means these windows are twice as strong as vinyl and virtually maintenance-free. They are also designed to withstand temperature fluctuations. Andersen 100 windows also come with superior sealing, enhancing energy efficiency.

How Do They Compare?

  • Durability: Pella Impervia and Andersen 100 are designed to withstand harsh conditions, but the fiberglass used in Pella Impervia may offer slightly better resistance to extreme temperature changes.
  • Energy Efficiency: Both brands offer energy-efficient options, but the thermal efficiency of Pella’s fiberglass and Andersen’s Fibrex® material might vary slightly depending on the specific product line and installation.
  • Maintenance: Both are low maintenance; however, the Fibrex® material in Andersen 100 can be slightly more resistant to fading and chipping.

Pella vs Anderson in Design and Aesthetics

The appearance of your windows is just as important as their functional attributes. Here’s how Pella Impervia and Andersen 100 measure up in terms of design and aesthetics.

Pella Impervia:

  • Design Variety: Pella Impervia offers a range of styles, including double-hung, single-hung, casement, and sliding windows. This variety ensures homeowners can find options that match their architectural needs.
  • Aesthetic Appeal: These windows come in various colors and finishes, allowing customization to suit individual tastes and home styles. The clean, crisp lines of Pella Impervia windows lend a modern aesthetic to homes.
  • Customization: Pella provides various hardware and grille options for further personalization, enhancing each home’s unique character.

Andersen 100:

  • Design Variety: The Andersen 100 series also offers a wide selection of window types, including casement, awning, gliding, and picture windows, catering to different functional and design preferences.
  • Aesthetic Appeal: Andersen stands out with its range of rich, fade-resistant colors and finishes. The Fibrex® material allows for deep, consistent colors that maintain vibrancy over time.
  • Customization: Andersen offers more extensive color options than Pella and various hardware and grille choices, giving homeowners greater flexibility in matching their windows to their home’s style.


  • Style Options: Both brands offer a variety of window styles, but Andersen 100 might have a slight edge in terms of the depth and richness of color options.
  • Modern vs. Traditional Appeal: Pella Impervia tends to lean towards a more contemporary look, whereas Andersen 100 balances modern and traditional aesthetics, making it versatile for a wide range of Long Island homes.
  • Customization: Both brands provide good customization options, but Andersen’s broader color palette could be a deciding factor for those seeking specific aesthetic matches.

Pella and Anderson Window Customization and Size Options

Tailoring windows to fit your home’s unique style and dimensions is a key consideration. Let’s compare the customization and size options available with Pella Impervia and Andersen 100 to help you determine which better suits your home’s needs.

Pella Impervia:

  • Customization: Pella Impervia offers a variety of customizable options. Homeowners can choose from window styles, including awning, casement, single-hung, and sliding windows.
  • Size Options: Pella provides a range of standard sizes but also offers the flexibility to accommodate custom sizes for unique window openings.
  • Color and Finish: The color options are somewhat limited but include several choices that fit most modern home designs. The finishes are designed to complement a contemporary aesthetic.

Andersen 100:

  • Customization: Andersen 100 windows stand out in their customization capabilities. They offer a wider range of styles including casement, awning, gliding, picture, and specialty windows.
  • Size Options: Andersen is well-known for its wide array of size options, catering to both standard and non-standard window openings, making it an ideal choice for homes with unique architectural features.
  • Color and Finish: Andersen provides an extensive palette of colors, allowing greater flexibility in matching the windows to your home’s exterior and interior design.

Which Window Option is The Best?:

  • Flexibility in Customization: Andersen 100 offers more styles and colors, giving homeowners a broader range to choose from.
  • Accommodating Unique Designs: While both brands cater to standard and custom sizes, Andersen’s extensive size range makes it a go-to for homes with unique window shapes and sizes.
  • Aesthetic Options: If you’re looking for specific colors or finishes, Andersen 100 might provide more choices to align with your home’s design.

Window Installation and Maintenance

For any window replacement project around Long Island, two key factors are often at the forefront: how easily the windows can be installed and what kind of maintenance they will require over time. In this section, we compare Pella Impervia and Andersen 100 regarding their installation processes and ongoing maintenance needs, giving you a clear picture of what to expect with each option.

Pella Impervia:

  • Installation: Pella Impervia windows require professional installation to ensure optimal performance. With its expertise in Pella products, Unified Home Remodeling can provide a seamless installation process.
  • Maintenance: These windows are low-maintenance, thanks to the durability of the fiberglass material. They resist wear and tear and do not require frequent painting or staining.
  • Cleaning and Upkeep: Routine cleaning with standard household cleaners is usually sufficient to keep Pella Impervia windows looking as good as new.

Andersen 100:

  • Installation: Like Pella, Andersen 100 windows also need professional installation. Correct fitting is key to maximizing their energy efficiency and operational functionality.
  • Maintenance: Andersen’s Fibrex® material is also low-maintenance. It’s less prone to fading and chipping, reducing the need for regular touch-ups.
  • Cleaning and Upkeep: These windows are easy to clean and maintain, requiring only occasional cleaning with simple cleaning solutions.


  • Ease of Installation: Both brands require professional installation, a service that Unified Home Remodeling can provide, ensuring that the windows are installed correctly and efficiently.
  • Maintenance Requirements: Both Pella Impervia and Andersen 100 offer the benefit of low maintenance, which is a significant advantage for busy homeowners.
  • Long-term Durability: With both options designed for durability and ease of maintenance, the choice may come down to personal preference in material and style.

Price Comparison and Value

Cost is a significant factor in any home improvement decision. 

  • Initial Cost: Andersen 100 tends to be more cost-effective initially, especially for standard options, while Pella Impervia might command a higher price, particularly with custom features.
  • Long-Term Value: Both brands provide windows that are likely to enhance the value of your home and offer long-term savings on energy bills. The choice may depend on your budget, design preferences, and specific needs.
  • Quality vs. Cost: Both Pella Impervia and Andersen 100 ultimately offer good quality for their respective price points. The decision should factor in the immediate financial impact and the potential long-term benefits.

Choosing between Pella Impervia and Andersen 100 for your Long Island home involves considering various factors, including material and construction quality, design and aesthetics, energy efficiency, customization options, installation and maintenance requirements, price, and overall value.

In the end, it comes down to your needs, preferences, and budget. Pella Impervia and Andersen 100 both have their advantages, whether you want durability and a contemporary design or a cost-effective solution.

Window Installers You Can Trust

At Unified Home Remodeling, we understand the importance of finding the right windows to enhance the beauty and comfort of your home and offer long-term functionality and value. We are here to guide you through the process, ensuring you make the best choice for your house. Contact us today for expert advice and quality window installation services.

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