• Made from patented Duracast® fiberglass composite.
  • Withstands extreme heat and cold.
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Fiberglass Sliding Window

Pella® Impervia®

45% off qualifying installations1,3
0% APR for 48 months2,3
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Replacing, remodeling or building a new home? Pella offers a variety of sizes to fit most any project. Choose from a wide range of standard sizes or we can build products to fit your specifications.

Built to order in 1/4" increments for a precise fit.

Need help figuring out the size you need? Contact Pella

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.

Pella® Impervia® Fiberglass Sliding Window Product Details

Energy Performance

Pella products offer the energy-efficient options that will meet or exceed ENERGY STAR® guidelines in all 50 states.1
Pella’s InsulShield® energy-saving technology can make a major difference in your home’s comfort and energy use.


The best-performing windows and doors are only as good as their installation.

Window Combinations

Join a window together with other windows to add character to your home's design. Additional combinations are available. See your Pella sales representative for the complete offering.

Options for Pella® Impervia® Sliding Window *

Interior Finishes

Pella Impervia® fiberglass products have a long-lasting factory powder-coat finish in your choice of five colors plus dual-color frame options. More Details »

Interior Color - White

White fiberglass window material

Interior Color - Tan

Tan fiberglass window material

Interior Color - Morning Sky

Morning Sky Gray fiberglass window material

Interior Color - Brown

Brown fiberglass window material

Interior Color - Black

Black fiberglass window material

Exterior Finishes

Pella Impervia® fiberglass products have a long-lasting factory powder-coat finish in your choice of five colors plus dual-color frame options. More Details »





Morning Sky Gray

Morning Sky Gray





Universal Security Sensors

Stay connected to your windows.

Preserve beauty, add comfort and enhance home security with optional Pella Insynctive® technology.

Protect what matters most. Monitor windows with time-tested wireless technology while at home or away with the Pella Insynctive App®.40 Learn more.

Grille Patterns

Grilles give the appearance of individual window panes. Pella offers many grille patterns to help enhance your home’s architectural style.

Grille Pattern - Prairie


Grille Pattern - Traditional


Grille Pattern - Top Row

Top Row

Grille Pattern - custom

Grille Pattern - None

Grille Profiles

Grilles-between-the-glass create the classic look of individual windowpanes. More Details »

3/4" GBG

3/4" GBG



Pella's cam-action-locks are available in today's most popular finishes.

Cam-Action Lock

Satin Nickel

Cam-Action Lock


Cam-Action Lock


Cam-Action Lock

Morning Sky Gray

Cam-Action Lock


Cam-Action Lock

Matte Black

Cam-Action Lock

Bright Brass

Cam-Action Lock

Oil-Rubbed Bronze



Conventional Fiberglass Screens

Pella's high-transparency screens are made of a finer screen fabric than conventional screens for a clear view that allows more air and natural light to flow into your home.

Pella InView™ screens let in 14% more light and are 8% more open for improved airflow compared to conventional fiberglass screens. 5

Glass Options

Pella's InsulShield® glass collection offers our most innovative and energy-saving choices for your climate. More Details »

Low-E Insulating Glass with Argon7


Best Use:
Most Climates

Low-E Insulating Glass with Argon7

Advanced Comfort Icon

Best Use:
Northern U.S. climates

Low-E Insulating Glass with Argon7

Sun defense icon

Best Use:
Hot, sunny climates

Low-E Insulating Glass with Argon7

Natural Sun Icon

Best Use:
Extremely cold climates

Also available for Pella® Impervia® Sliding Windows

Fiberglass Sliding Window Customer Ratings & Reviews

5 star: 4 star: 3 star: 2 star: 1 star:

Average Customer Rating in the past 12 months*

4.35 /5 based on 818 ratings

Showing Most Recent Reviews (last 6 months)

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*Due to individual digital monitor limitations, colors may vary from those shown. To confirm your color choices, contact your local Pella sales representative or visit your local Pella Window and Door Showroom.

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