Pella Impervia Composite Slider Window

Pella Impervia Composite Slider Window

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  • In-home consultation
  • Dedicated project manager
  • Removal & disposal
  • Lifetime warranty
  • 20 year workmanship guarantee
  • Financing available

About the Pella Impervia Composite Slider Window

Slider windows are great for areas where you want lots of ventilation and light. Slider windows typically come in 2 or 3 lite configurations, which means they are two or three windows, but it’s all one sturdy unit.

The Pella Impervia Series fiberglass composite slider window delivers the quality look of a painted wood window, superior durability, low maintenance, and incredible energy efficiency.

The Impervia line windows are made from Pella’s patented Duracast fiberglass composite. These aerospace-grade materials are strong, durable, and withstand extreme conditions easily. The highly stable material won't expand, warp or sag in summer heat, or shrink and turn brittle in harsh winter conditions.

Details and Attributes

Pella Impervia sliding windows feature a low-maintenance, factory-applied powder-coat paint finish in White, Tan, Morning Sky Gray, Brown or Black. The paint finish resists chalking and fading, even in dark colors.

Energy-efficiency is paramount. Pella Impervia sliding windows are available in a number of insulating glass options, including SunDefense, Obscure, Tempered, among others. The glass is pumped with argon gas. Pella's Low-E glass options reduce the transmission of solar heat gain and ultraviolet light while allowing the transmission of visible light.

These windows are available with a range of hardware options and finishes like surface-mounted sash locks and nylon roller housings.

Sliding Window Advantages

Here are some aspects that make sliding windows so popular:

Unobstructed Views. Much larger than double hungs, sliding windows horizontal windows provide a more natural look at the outside world. The larger size creates more light and better ventilation.

Low Maintenance. With less parts and pieces, there’s less cleaning or dusting necessary. Less potential issues. Properly installed sliders should last for many years without giving you any problems.

Easy Operation. Slider windows are opened with the push of a finger. There’s less internal mechanisms to hinder the process, and you’ll love how simple it is to let air and light into the room.

Pella Impervia Fiberglass Sliding Window Price

The cost of each window or door can vary significantly based on many factors, such as your choice of size, frame material, glass type, finish options, etc. Our standard installed window comes installed from $896.

Pella Sliding Window FAQs

What’s the difference between Pella Impervia vs. Pella 350 Series?

Pella Impervia is made of Duracast fiberglass composite material, while Pella 350 is made of traditional vinyl.

In what room does a sliding window look best?

Anywhere you want a simple function window that also needs airflow. Sliding window are great in the bathroom or kitchen where a smaller window is needed.

Does this window come with a warranty?

Pella products are backed by some of the best warranties in the business. Ask your Renoviso project manager about the product’s exactly warranty.


The Pella Impervia Composite Double Hung Window offers a variety of options to meet your needs. We automatically include the ENERGY STAR® qualified glazing upgrade with AdvancedComfort Low-E glass and Argon gas. Other features include:

  • Comes in 2 or 3 lite configurations
  • Made from Duracast material, Pella’s five-layer engineered fiberglass composite, which withstands extreme heat and cold
  • Extra durable tandem nylon rollers for smooth, easy operation
  • Includes half or full fiberglass screens or optional high transparency screens that allow more air and natural light to flow into your home
  • Comes with color matched cam-action lock, also available in bright brass, satin nickel, and oil-rubbed bronze
  • Features durable, low maintenance power-coat finish for look of painted wood. Available in white, tan, morning sky grey, brown or black with optional dual-color frame of white interior and colored exterior
  • Available in a variety of patterns with 3/4” contour GBG (grids between the glass) grids.
  • Lifetime limited non-transferrable manufacturers warranty on unit and mechanical parts with a 20-year transferable warranty for the insulated glass
U-factor indicates how well a product prevents heat from escaping.

The lower the number, the better. To meet Energy Star requirements, windows must have a u-factor at or below 0.27.

U factor


Thermal performance is a rating on a scale of 4 of the overall energy performance of the product.

Thermal Performance


Visible transmittance refers to how much visible light comes through the product.

The higher the number, the more light is transmitted. VT values typically range from 0.30 to 0.70.

Visible Transmittance


Solar heat gain coefficient measures how well a product blocks heat caused by sunlight.

The lower the number, the more it will help reduce the use of air conditioning and energy use. In cold climates, a higher SHGC is desirable to collect heat from sunlight. SHGC typically ranges from 0.25 to 0.80.

Solar Heat Gain Coefficient