Pella® Impervia® Windows

Fiberglass windows delivering unmatched strength, lasting durability and sleek, timeless style.48


Why Choose Pella Impervia Windows?

Lasting durability with beauty and energy efficiency.

Rot- and corrosion-free. Our durable fiberglass will never rot or corrode, is naturally resistant to water and bugs and virtually maintenance free.

No painting or refinishing. A tough powder-coat finish resists chipping, chalking and fading — so you never need to paint or refinish.

Tested to withstand harsh conditions. Pella’s proprietary, low-maintenance fiberglass is tested to withstand some of the harshest conditions, including extreme heat and sub-zero cold, damaging UV rays and seacoast environments.16

Design Your Own Pella Impervia Window

Select one of the available styles below to begin.

Shop Online

Explore select Pella windows, patio doors, entry doors, storm doors, and accessories on

Shop Now

Work with an Expert

Get advice from a Lowe’s project specialist with a free consultation. They will answer your questions, measure your windows and doors, discuss installation and financing options and provide you with a free quote.

Schedule a Consultation

Features and Options

Window Styles

  • Double-Hung

  • Single-Hung

  • Casement

  • Awning

  • Sliding Window

  • Picture


  • Black

  • Brown

  • White


  • White Interior with Brown Exterior

  • White Interior with Black Exterior


  • Fold-Away Crank

  • Cam-Action Lock

  • Easy-Slide Operator


  • White

  • Brown

  • Matte Black

  • Satin Nickel

Low-E Insulating Glass

  • Advanced Low-E Insulating Glass

  • AdvancedComfort Low-E Insulating Glass

  • NaturalSun Low-E with Argon

  • SunDefense™ Low-E Insulating Glass

  • Clear Low-E Insulating Glass (Standard)

Additional Glass Options

  • Tempered Glass

  • Laminated, Non-Impact Resistant Glass

  • Obscure Glass

  • Triple-Pane Glass (Available on Casement, Awning, & Picture Windows)

  • STC-Improved Sound Control Glass



With high-transparency screens from Pella, you can increase the amount of natural light and airflow in your home. InView screens allow in 14% more light are 8% more open than conventional fiberglass screens.5

Grille Patterns

  • Custom

  • Traditional

  • Prairie

  • Top Row

Grille Profiles

  • 3/4" Grilles-Between-the-Glass


Enjoy Satisfaction for Years to Come

Pella® fiberglass windows are backed by the Pella Limited Lifetime Warranty – one of the best warranties in the business. See written warranty for complete details.

Download Fiberglass Warranty

Pella is Passionate About Quality

Pella has a steadfast commitment to quality – going beyond what meets the eye.

Learn More and See Videos

Looking for Installation Guides?

Get answers to your installation questions in our comprehensive Pella window and door installation guides.

Installation Guides