Thermal Industries

Thermal Industries patio doors at AES Windows and Doors

Superior Strength

Homeowners like you will no longer sacrifice strength and efficiency for the largest window in your home! The Legance Patio Door’s fully-welded construction, aluminum reinforcement and superior wedging interlock provide a tight seal between the sashes, keeping winter’s chill and summer’s heat at bay. In addition, the Legance’s™ Sliding Glass Door’s exclusive monorail track design allows for smooth, easy operation.


Security is definitely a priority in the design of the Legance™ Patio Door. Keyed, dual-point grappling hook locks are standard on all systems and can be upgraded to keyed, multi-point* locks with four locking points. In addition, a standard recessed security bolt is conveniently mounted on the trailing edge of the operating sash, keeping intruders away from precious family and possessions.

Legacy Patio Door Features

  • Fully-Welded Construction for rigid, long lasting performance
  • Monorail Track Design & Anti-Racking System allows door to glide smoothly
  • Grooved Aluminum Walking Plate provides an area to scrape off dirt and soil, keeping your home cleaner
  • Heavy duty hanging screen with Accu-Track Anti-Racking System
  • Recessed Security Bolt Acts as an extra lock or allows for secure, partial ventilation
  • Standard Dual-Point Grappling Hook Lock Increases security by drawing the sash tight to the frame
  • External Key Lock
  • 13/16″ Insulating Glass featuring Warm-Edge Technology
  • Superior Wedging Interlock Increased security and reduced weather infiltration
  • White Color
  • Tested to AAMA’s strict standards
  • NFRC tested


Legacy Patio Door Options

The Legance™ Sliding Glass Patio Door offers a wide range of options to add character to your patio door while complementing the décor of your home. Choose from two or three panel door styles, decorative grid accents and classic hardware options.

You can also opt for a stained-glass look in your Legance™ Sliding Glass Patio Door by selecting from the elegant glass patterns in the DreamGlas® Gallery Collection. For additional privacy and the ultimate in convenience, our inside-the-glass, tilting mini-blinds** are the perfect solution.

  • Features an 8-1/2” high color-coordinated reinforced kick panels for insulation
  • Elegant Brass Locking Door Handle
  • Elegant Brushed Nickel Locking Door Handle



  • ENERGY STAR qualified with Peak Performance™ Glass, a dual pane insulating glass package with Low-E, Argon Gas and Warm-Edge Technology
  • ENERGY STAR qualified with Super Peak Performance™ Glass, a triple pane insulating glass package with Low-E, Krypton Gas and Warm-Edge Technology
  • DreamGlas® Gallery Collection; Jewel Cut, Color and Caming
  • Decorative Grids in a variety of patterns and styles
  • *Tilt-Only, Inside-the-Glass, White Mini-Blinds
  • **(Available in 5’ and 6’-size patio doors only. NOT available with the following options: French-Style Door, Peak or Super Peak Performance Glass, Custom-Sizes)


  • Earthtone or Safari Brown Laminate Colors
  • Natural WoodGrain paintable/stainable interior synthetic laminate in Oak or Pine


  • 5’, 6’ and 8’ two-panel configurations
  • 9’ and 12’ three-panel configurations