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Window Replacements

Restore Your Andersen Windows—No Full Replacement Needed

A smarter, faster way to upgrade your home’s windows—without ripping them out.

If your home has Andersen® Narroline® windows (1968–2013), you’re not alone. We’ve worked on a number of homes in your neighborhood with the same issue: aging windows that are drafty, hard to clean, or starting to fail.

We’re Cornerstone Remodeling—your licensed local Andersen® distributor and installer—and we offer a fast, cost-effective solution:

The Andersen Sash Conversion Kit.

No Full Tear-Out Required

Keep your original window frames and interior trim. No drywall or exterior trim work.

Energy-Efficient Glass

High-performance Low-E4® glass is up to 58% more efficient in summer and 45% more efficient in winter compared to standard dual-pane glass.

Real Wood Construction

Get the longevity and quality of real wood. Customizable with finishes, grill patterns, glass options, and hardware styles.

Easy Cleaning

Tilt-wash sash design makes maintenance simple, from inside your home.

Long-Term Durability

Unlike vinyl, these authentic wood windows are built to last for decades.

Quick Installation

Most windows are installed in just one day—with no messy construction.

Local Experts. Trusted Results.

We live and work in this community, and we’ve helped dozens of homeowners just like you upgrade their windows without sacrificing style, comfort, or structure.

How Do I Know If I Have Narroline Windows?

If your Andersen® windows were installed between 1968 and 2013 and have wood interiors with a narrow vertical strip in the middle, you likely do. Look for:

  • Two sash, both slide up and down
  • Thin nylon cords in side jamb
  • Andersen logo in lower corner of the glass
  • Recessed sash lift 

What Comes With The Conversion Kit?

• Tilt-wash windows to allow you to clean both sides of the glass from inside your home

• New upper and lower sash, balancers, jamb liners, lock and keeper

• Compressible jamb liner to provide a reliable seal between sash and frame

• Customizable styles with choice of finishes, grilles, exterior trim, art glass or patterned glass

Ready to Upgrade?

Schedule an assessment today or call us at 410-336-7011 for more
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Read more about conversion kits and options on Andersen's website

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