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Double Hung & Single Hung Insert Windows

Restore your drafty and non-working windows with our frame-in-frame window system. Pocket insert replacement windows are designed to fit your existing frame pocket and are a complete window. As part of our Revitalize window replacement program, pocket insert windows are quick to install, fully tested products and energy efficient.

Revitalize Series

Investing In Improvement - 2013 Redesign


Timeline offers a vast array of options and accessories to make every product an opportunity to fit your signature style.

See the options available for this product


Traditional Double Hung Windows

This arrangement is an ageless window type that offers some unique advantages. Sash tilt in for easy cleaning, ventilation is improved by opening the top and bottom sash equally and classic historical appeal is achieved when using Lincoln double hungs.

Our traditional window is equipped with advanced energy saving features. For example, Lincoln double hung checkrails incorporate the use of interlocks, weatherstrip and high-quality sash locks for a precision fit.



Double Hung pocket insert window.  
  1. 3-1/4” Jamb - Fits snugly into your opening after worn-out sash and balances are removed.
  2. All Vinyl Low-maintenance Construction - Three standard colors.
  3. Fully Assembled - Units are packaged with installation hardware, sill expander and include color-matched screens.
  4. Heavy Duty Hardware - Hardware performs year after year.
  5. Tilt-in Sash - Sash tilt to the interior for easier cleaning.


  • Color Matched Sash Lock Finishes - Match your interior décor with a standard or auto sash lock.
  • Inverted Block & Tackle Balance - Sash weight is compensated for and makes windows easy to operate and remove.
  • Interlock with Weatherstrip - Double protection against air infiltration with multiple weatherstrips and interlocking sash.
  • Continuity of Design - Replacement units look just like our full-frame replacements and new construction double hung.
  • Mulling Options - Units can be mulled in two and three-wide configurations.
  • Studio Picture Windows - Large stationary openings can be made energy efficient.