Bay & Bow Windows

30 or 45 Degree Bays and 3 to 5 Lite Bow Windows

Bay windows and bow windows provide a picture-perfect, three-dimensional space for a cozy window seat, breakfast nook or plant ledge to complement your home’s decor.

These windows are compatible with all series of Replacement RELIABILT windows. Learn more about RELIABILT Bay and Bow windows at

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  • Bow Window with Casements in Almond with Valance Grid
    Bow Window with Casements in Almond with Valance Grid

Standard Features and Available Styles

  • Bay windows may be positioned at 30 degree or 45 degree
  • Bow windows are positioned at 15 degree
  • All units come completely assembled and ready for installation
  • Choice of double-hung or casement windows to flank picture window
  • 1-in birch head and seat board come standard
Product Close-Up View
30 to 45 Degree Bay Windows
Product Close-Up View
3 to 5 Lite Bow Windows

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

1-1/8-Inch Simulated Divided Lite (SDL) Grid

Grid Patterns




Perimeter Prairie


Glass Options

  • 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

Additional Options

  • Oak head and seat board
  • Custom sizes on 1/8-in increments
  • Obscure, tempered and double strength glass available
  • Double hung, single hung and casement windows can be included in the bay/bow, for added functionality
  • Insulated seat board

RELIABILT Manufacturing Story

Our windows and sliding doors are recognized for their high-quality craftsmanship, innovative engineering and close attention to detail. Learn more about the process used to make them.

Low-E and Argon Gas

Learn how Low-E coatings on glass and argon gas filled between glass panes reduces energy usage and improves the year-round comfort of your home.


Looking for ENERGY STAR qualified products? Learn more about the climate zones and performance criteria used to identify ENERGY STAR compliant windows and doors.

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The RELIABILT Warranty

Every RELIABILT 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.

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RELIABILT Product Care

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

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Schedule a free, no-obligation in-home consultation with Lowe's to get RELIABILT windows and doors for your home today.