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Slider 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 Slider Windows

The sliders' main characteristic is its ability to slide easily on a vinyl track. Long-lasting brass rollers make even the largest sizes glide well. Timeline sliders are the perfect utility window because the blend well with a twin casement from afar and are and exceptional value.

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



Triple Slider Windows

Timeline's energy efficient triple slider is built to fill large openings and can be installed where windows that project outward are just not practical.  Triple sliders operate from each end for excellent ventilation and utilize a studio center to capture your view.

Sliders offer simple operation because they slide on brass rollers and are extremely durable because they have fewer moving parts. Triple sliders also reduce your energy consumption by featuring fully weather-stripped sash with interlocking checkrails.


Slider 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. Lift Out Sash - Sash lift to the interior for easier cleaning.


  • Color Matched Sash Lock Finishes - Match your interior décor with a standard or auto sash lock.
  • Brass Rollers – Carriers allow for adjustment and makes windows glide easily.
  • 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 sliders.
  • Studio Picture Windows - Large stationary openings can be made energy efficient.