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Pella® Impervia® Fiberglass Single-Hung Window


Pella Impervia single-hung windows feature a stationary top sash and a bottom sash that opens and closes for ventilation. Versatile design features and options help deliver a timeless style to any home. And with one of the best limited lifetime warranties, you can be sure your windows will perform for years to come.

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Impervia Single-Hung Window Features

Why Fiberglass?

  • Superior strength and durability with patented fiberglass material16
  • Withstands the most extreme temperatures
  • Long-lasting powder-coat finish, including Black
  • Sleek, slim profiles
  • Meets the rigorous performance requirements of a commercial building43

Performance Enhancements

  • Exceptional energy efficiency
  • Optional, energy efficient foam insulation
  • Outstanding resistance to air and water infiltration, wind and outside noise

50% off qualifying installations1,3or0% APR for 48 months2,3

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Inside Pella Impervia

Pella Impervia products with dual-pane glass offer energy-efficient options that will meet or exceed ENERGY STAR® requirements in all 50 states.1 Improve energy efficiency further with optional foam insulation.

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For the Pros

Pella Impervia Single-Hung Window Installation and Product Specs

Learn about Pella Impervia installation details and product specs when you browse through our curated collection of information just for building professionals.

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Options for Pella Impervia Single-Hung Windows

Choosing Your Window


Make a design statement with window combinations. Additional combinations are available. See your Pella sales representative for the complete offering.

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. Learn more about interior finishes.

white enduraclad paint window corner


Styling Your Window


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

white cam-action lock for impervia windows


Grille Patterns

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



Grille Profiles

Grilles-between-the-glass create the classic look of individual windowpanes. Learn more about grille profiles.

3/4" grilles between-the-glass

3/4" Grilles-Between-the-Glass

Window Enhancements

Integrated Security Sensors

Stay connected to your windows.

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

Protect what matters most. Monitor windows while at home or away with the Pella Insynctive App.40

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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

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Pella products are backed by some of the strongest warranties in the business.

Learn more about Pella warranties

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