Replacement Horizontal Sliding Windows

Horizontal Sliding Windows

Horizontal sliding windows slide left or right, depending on your preference.

Drawing of a sliding window diagram

Types Of Horizontal Sliding Windows

There are several types of horizontal sliding windows.

  • Aluminum Horizontal Sliding Windows
  • Vinyl Horizontal Sliding Windows
  • Wood Horizontal Sliding Windows

Milgard Horizontal Sliding Windows

Aluminum Series

Milgard Aluminum Windows in living room

Aluminum is often used for contemporary homes because of the thin sightlines. However, aluminum windows are also seen on mid-century modern homes.

The Milgard Aluminum Series Features:

  • Sleek
  • Strong
  • Come with Milgard SunCoat Low E-glass – glass windows have a microscopically thin coating that is transparent and reflects heat
  • Aluminum that is thermally improved – provides less heat/cold transfer, so there’s better insulation
  • Full Lifetime Warranty

The Aluminum Series Colors

  • Bronze Anodized (black)
  • Clear Anodized
  • Bronze Anodized
Interior & Exterior Color Options
Window frame colors for Milgard aluminum windows

Aluminum Series Glass Types

Sliding Window Obscure Glass

  • Aquatex
  • Clear 42
  • Cross Reed
  • Delta Frost
  • Frosted Glue Chip
  • Clue chip
  • Matelux
  • Narrow Reed
  • P516
  • Rain
Types of tinted glass for Milgard Aluminum Windows

Sliding Window Tinted Glass Types

  • Azurelite
  • Cardinal Low-E
  • Evergreen
  • Solar Bronze
  • Solar Gray
Types of tinted glass for Milgard Aluminum Windows

Essence Series

Milgard Essence series vinyl windows in living room

The Milgard Essence Series combines the beauty of wood and the durability of fiberglass. If your home interior requires wood to finish off the look, then the Essence Series is an excellent option.

Wood windows are known to look great and insulate well, but lack exterior durability. Exposure to the elements wares down the wood and its appearance fades. The Essence Series gives you all of the benefits by giving you the look of wood and the weather resistant strength of fiberglass.

Clad Wood Windows - A living room filled with furniture and a large window - Window

Solid Wood Window Interior Types

  • Douglas Fir
  • Natural Pine
  • Primed Pine
  • Primed Wood – paint it your favorite color

Exterior Frame Colors

Milgard offers 16 colors for fiberglass windows in Seattle.

milgard fiberglass 16 exterior window colors

Style Line Series

Style Line Windows close up white

Milgard created the Style Line Series to offer homeowners a way to make their home look more expansive. They also made it with high quality and affordable vinyl for great durability, aesthetic, and pricing.

Style Line Exterior Vinyl Window Colors

There are eight premium vinyl colors to choose from.

premium vinyl window frame colors

There are three standard colors.

Colors of frames for Vinyl windows

Trinsic Series

Milgard Trinsic Series windows in dining room

Trinsic was built to accommodate contemporary home styles, and homes with beautiful views. The windows are so low profile that homeowners and guests barely notice the window as the new expanded view captivates them.

Trinsic windows are

  • Vinyl
  • Narrow
  • Energy efficient

You get a sleek style, durability, and the maximum outside view.

Trinsic Exterior Vinyl Frame Colors

Milgard vinyl windows come in eleven exterior frame colors – three standard, and 8 premium. These are the same colors as the Style Line Series above.

Tuscany Series

Milgard Trinsic Series windows in dining room

The Tuscany Series is our premium vinyl window offering. With Tuscany you get can the look of a traditional wood window with the benefits of vinyl. The frame is vinyl, and wide enough that it mimics the look of wood frames.

Tuscany Series windows come in the eleven colors previously mentioned.

Quiet Line Series

Quiet Line Series was created for those homeowners who want as little outside noise as possible. It has exceptional noise protection, so they’re great for high traffic areas like airports, highways, or downtown areas.

The windows are triple glazed and utilize the perfect amount of space to reduce sound. For homes in very busy/loud areas, we have laminated glass and heavier glazing options.

Milgard Quietline Horizontal sliding window

Ultra Series

Milgard Ultra series window in living room

Ultra Series is our premium fiberglass window. It’s built to resist swelling, rotting, and warping. It’s the choice for long-lasting windows.

Andersen Horizontal Sliding Windows

Andersen 100 Series Gliding Window

100 Series

The Andersen 100 series is the most economical and eco-friendly offering of sliding windows. It’s made with the composite material Fibrex.

Fibrex is an alternative to vinyl windows that is:

  • 2x as strong as vinyl
  • Does better in extreme temperatures
  • Uses reclaimed wood and reclaimed thermoplastic polymer
  • Reduce VOC emissions
  • Won’t rot, decay, have fungal growth, flake, blister, peel, pit, or corrode
Andersen E Series Gliding Window


The Andersen E-Series is the most customizable and least economical option. Unlike the other series options, the E-Series is made of wood and protected by aluminum exterior. You can choose custom colors, interior woods, and stains.

Benefits of Horizontal Sliding Windows

Sliding a window sideways is often easier than lifting a window to open it. Windows that open vertically can also close quickly, and either scare or injure people unprepared for it.

Horizontal Sliding Wall FAQs

What are horizontal sliding walls?

Horizontally sliding walls are sections of glass elements that act as a wall when extended/shut. When the glass elements are pushed into a “parking area” then the wall is opened. The individual glass panels completely disappear. The horizontally sliding walls are therefore ideal as partition walls or commercial fronts.

How much do horizontal sliding walls cost?

The cost of horizontal sliding walls are made on a per square foot basis. The cost per square foot is $25 to $100. A typical wall is $1000 to $3000, not including installation.

Horizontal vs Folding Glass Walls

Horizontal sliding walls disappear when opened. Other Sliding glass walls fold and are visible when open.

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