Renewal by Andersen Polar Block Sales: The Clear Choice for Your Home

Homeowners trust our replacement windows and doors to significantly lower the energy needed for heating and cooling in Iowa and Illinois. Additionally, every Fibrex frame we manufacture uses 40% reclaimed wood, promoting sustainable building practices.

Unmatched Quality and Craftsmanship

Durability

Every new window product undergoes rigorous testing before its market debut, and then each individual unit is put through a final quality assurance battery prior to being brought to your Illinois or Iowa home for installation.

Professional Service

As dedicated window and door specialists, our professional installation team in the Central Illinois, Greater Des Moines and Quad Cities region is second to none. This commitment is why our comprehensive limited warranty safeguards not only the product and the glass but also the professional installation service.

Year-Round Comfort

We engineer energy efficiency into the core of our window replacement method. Our proprietary Fibrex® frames provide excellent insulation, our advanced Low-E4 glass minimizes heat transfer in all seasons, and our precise, professional installation guarantees a weather-tight fit.

Why Fibrex® is Superior

Why Fibrex® is Superior

Unlike many competitors who are limited to offering fiberglass or vinyl, Renewal by Andersen created Fibrex®, an exclusive composite material that consistently outperforms traditional options. This unique blend takes the incredible stability and structural strength of wood and marries it with the maintenance-free advantages of vinyl. Fibrex® is measurably two times stronger than vinyl and offers 700 times better insulation than aluminum.

The innate strength of Fibrex® allows our designers to create sleeker, narrower frames, maximizing your glass area for larger, more beautiful views. Plus, its heat-defying properties mean you can choose deep, dark exterior colors like black, navy, or brown without concern for warping.

Fibrex is Superior
Fibrex is StrongFibrex will not crack
Fibrex is thickerFibrex is heat resistantFibrex is scratch resistant
  1. See Renewal by Andersen® Products and Installation Transferable Limited Warranty for details.
  2. When Renewal by Andersen® products were tested against five leading competitors’ painted vinyl window products.

Material Benefits

Fibrex

Vinyl

Wood

Insulating Properties

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Low Maintenance

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Resistance to decay

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Installation included

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Structural Rigidity

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Durable

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Our Polar Block Sales-Backed Limited Warranty

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    Fully Transferable to the Next Owner
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    20-Year Coverage on Fibrex® Material and Glass
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    2-Year Coverage on Installation by Our Team
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    10-Year Coverage on Component Hardware
RBA Warranty Coverage

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Dedicated Support

Assistance for Your Product

Do you have questions regarding the function or maintenance of your replacement windows or doors? The Renewal by Andersen Polar Block Sales team is ready to talk. We can call you at your convenience or reply via email.

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Warranty & Claims Help

Backed by one of the strongest limited warranties in the entire industry, we ensure comprehensive support should any issues arise. Please reach out directly to our Polar Block Sales team for any claims or questions about your coverage.

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