Series 40 double hung windows with colonial grids

Series 40 Windows for Replacement

Double Hung, 2 and 3-Lite Sliders and Picture Windows

What makes the Series 40 windows so special? Start with superior performance and reliability. Add durability, energy efficiency and nearly maintenance-free vinyl. Then top it all off with an elegant and innovative design.

Lansing Series 40 Brochure
Lansing Series 40 Product Video
Lansing Series 40 Product Video

Available Styles

Product Close-Up View
Series 40 Double Hung Window
Feature Sheet
Product Close-Up View
Series 40 Slider Window
Feature Sheet

Standard Features

  • Beveled exterior frame for brick-mould appearance
  • Reinforced, multi-cavity construction provides additional thermal performance and structural integrity
  • Fusion-welded sashes and frame add strength, boost thermal performance
  • Insulated glass panels with optimum thermal air space featuring warm-edge spacer system
  • Constant force coil balance system permits easy sash movement
  • Sloped sill reduces air infiltration and allows for easy water run-off
  • Half screen comes standard*
  • Positive-action cam lock enhances safety
  • Dual push button night latches provide optimum ventilation
  • Integrated, slim line lift rail allows you to easily operate sash
  • Interlocking sashes keep out drafts
  • Dual-fin weather stripping further reduces air infiltration
  • Rubber bulb seal helps block outside air
  • Transferable Limited Lifetime Warranty

Series 40 Slider Window Specific Features:

  • Tandem rollers ride easily along friction free glide channel
  • 3-1/4 inch jamb
  • Available in 2-lite and 3-lite configuration
  • 3SL available in 1/4-1/2-1/4 or 1/3-1/3-1/3 configurations
  • XO or OX 2-lite styles available
  • Half screen*

* Screens are not meant to restrain a child from falling through an open window.

Available Options

Vinyl Color Options



Painted Color Options


Brick Red



Dark Chocolate


Hunter Green



Note: Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Laminates and exterior painted options available on select products, if they are not shown above they are not available on this product. Interior and exterior laminates available on white window only. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.

Grid Types

5/8-Inch Flat Grid

3/4-Inch Flat Grid

5/8-Inch Contoured Grid

1-Inch Contoured Grid

Grid Patterns



Perimeter Prairie


  • Low-E Glass
  • Low-E Glass and argon gas for additional efficiency
  • Ultra Low-E Glass and argon gas
  • Obscure, tempered or double-strength glass
  • InsulKor™ multi-cavity foam-filled frame
  • Window Opening Control Device (WOCD) to prevent falling from a window (factory applied)
  • Factory mulling of twins, triples and architectural shapes
  • Charcoal aluminum mesh screen
  • Clear View Screen Mesh
  • Heavy Duty Screen Mesh
  • FlexScreen—the World’s most flexible screen
  • Lifetime Glass Breakage Warranty
  • Custom sizes available
Lansing Warranty Feature Image

The Lansing Warranty

Every Lansing window and patio door is backed by a limited lifetime warranty on vinyl, glass and all working parts. Each product is individually registered with a product identification number, making ordering replacement parts throughout the warranty period easy and efficient.

View Warranty & Support Details

Lansing Care and Maintenance Guide

Lansing Product Care

Lansing windows and doors are designed for easy care and maintenance. Click the button below to download Lansing’s window and door care and maintenance guide.

Download Guide