Preparing for an Insert Window Replacement
Your old windows can be replaced with Andersen insert windows if:
- There is no rot in the window frame.
- Your window frame is square.
- You want to replace a worn window with a new window of the same size in the existing frame without disrupting the trim.
How are the old windows removed?
The basic steps include:
- Remove the window stops.
- Remove the lower window sash.
- Remove the upper window sash.
See Window and Door Removal Reference for written instructions on how to remove the existing window. There are different removal procedures based on how the existing window was installed.
For additional help, watch the YouTube video below for an example of how to install a tilt-wash double-hung insert window.
Installation Instructions and Options
Installation Instructions
Full Frame Window Installation
Installation Options
Products Available with an Insert Option:
View all Andersen® replacement window solutions.
- Durable wood interior protected by a weather-resistant Perma‑Shield® exterior.
- Two operating sashes provide flexible ventilation and easy cleaning.
- Available in a wide range of sizes, colors, grilles and glass options.
This timeless window is a best-seller for historic renovations. It offers a traditional wood interior while featuring our innovative Fibrex® material, so you get a historic look that never looks "old.”
- 50 standard colors, 9 wood species, 11 stains.
- Wood protected by aluminum exterior.
- Standard sizes up to 4' wide and 7'6" high. Custom sizes available.
The smart alternative to vinyl
100 Series
Our 100 Series product line is engineered with Fibrex® composite material for durability, sustainability and energy-efficiency. It's twice as strong as vinyl and provides low-maintenance exteriors with clean corners for a refined look.
