Seattle Horizontal Sliding Windows

If you’re struggling with inefficient horizontal sliding windows that stick or slide slowly, Lake Washington Windows and Doors has the solution. Call us today for window installation services in the Greater Seattle area. Our customers love the high-quality replacement windows we provide from the top industry-leading manufacturers.

Horizontal Sliding Windows Defined

Horizontal sliding windows, sometimes called gliding windows, are a type of sash window similar to single or double-hung windows. Rather than opening vertically, sliding windows open horizontally by sliding the sash from left to right or vice versa. Single horizontal sliding windows have one stationary sash and one operable sash, while double horizontal sliding windows have one stationary sash and two operable sashes. 

Drawing of a sliding window diagram

We’ve Carefully Chosen The Best Manufacturers For Your Seattle Sliding Windows

Let us use our experience and industry knowledge to your benefit. With over 30 years in the window industry, time has allowed us to determine the horizontal sliding manufacturers who deliver the best blend of quality, price, and VALUE for you. Our chosen manufacturer partners create value in four essential areas:

  1. Consistency of quality and service over the years
  2. Level of warranty support to you
  3. Industry longevity
  4. Product innovation

Our valued manufacturer partners for horizontal sliding windows are:

Best Applications

  • Excellent choice for rooms facing walkways, porches, and patios

  • Great for bedrooms and spaces with egress requirements. 

  • For those who find hand-crank windows more difficult than sliding windows

  • Great source of natural light and ventilation

  • Excellent low maintenance and easy-to-clean window style

  • For those looking for a low-cost operable window style

  • Provide excellent security with lever and track locking systems

Top Horizontal Sliding Windows Compared

Milgard Ultra Series Milgard Tuscany Series Milgard Trinsic Series Andersen E-Series
Frame Material Fiberglass Vinyl Vinyl  Aluminum Clad Wood
Strength Excellent Excellent Very Good Excellent
Durability Excellent Very Good Very Good Very Good
Large Size & Custom Designs Excellent Very Good Good Excellent
Energy Efficiency Excellent Excellent Excellent Excellent
% Glass to Frame Excellent Very Good Excellent Very Good
Curb Appeal Excellent Excellent Excellent Very Good
Exterior Colors 6 7 7 50
Warranty Excellent Excellent Excellent Very Good
Price $$$$ $$$ $$ $$$$ 

The Milgard Ultra Series fiberglass windows are top-of-the-line when it comes to window technology. Fiberglass is an eco-friendly window material that provides the highest energy-efficiency levels available. Fiberglass is made primarily of silica sand, an abundant natural resource. Glass is made primarily of sand. Thus the frame and glass expand and contract at roughly the same rate while remaining resistant to swelling, rotting, and warping, allowing for a longer lifespan.

Features and Benefits:

  • Extremely durable with an expected lifespan of nearly 80 years.

  • Strong frame material allows for large custom sizes

  • Paintable frames that homeowners can update to match current home color trends

  • Low expansion/contraction rate through 100-degree temperature changes means less glass and caulking failure over time

  •  An Energy Star package tailored to the Seattle region for optimal energy efficiency.

  •  Custom colors, hardware, and glass options to match any home design.

Milgard Ultra Series C650 Horizontal Sliding Windows 

Window Configurations Hardware Features Color Options Grid Options Glass Textures Tint Options Screen Options
Half-vent
Half-vent above
Half-vent below
Single-vent
Double-vent
Half-vent below with gable above
Half-vent below with 2-lites above
Half-vent above with 2-lites below
Double-vent below
Double-vent above with 3-lites below
Double-vent below with 3-lites above
Positive Action® Lock
Cam Lock (optional)
Sash Pull
Interior Colors
White (any exterior color)
Harmony (harmony exterior only
Bark (bark exterior only)
Black bean (black bean exterior only)

Exterior Colors
Frost
Harmony
Bark
Black bean

Interior Grids
Flat GBG Grid
Sculptured GBG Grid
3/4″ Vintage SDL
1-1/8″ Vintage SDL
1-1/8″ Craftsman SDL
1-1/8″ Legacy SDL

Exterior Grids
Flat GBG Grid
Sculptured GBG Grid
3/4″ Vintage SDL
1-1/8″ Vintage SDL
1-1/8″ Craftsman SDL
1-1/8″ Legacy SDL

Obscure Aquatex
Obscure Clear 42
Obscure Delta Frost
Obscure Frosted Glue Chip
Obscure Glue Chip
Obscure Matelux
Obscure Narrow Reed
Obscure P516
Obscure Rain
Cardinal Low-E
Solar Bronze
Solar Gray
Standard Mesh
PureView Mesh
Milgard Ultra Series C650 Fiberglass Horizontal Sliding Window Size Chart

Not all vinyl is created equal. Many vinyl window manufacturers cut corners on their vinyl components. When it comes to vinyl sliding windows, the Milgard Tuscany Series is a superior vinyl product line, offering the highest degree of structural strength, UV inhibitors, glass efficiency, and quality in the industry. These features, coupled with elegant sightlines that mimic the look of traditional wood windows, create a high-end custom look for your vinyl replacement window solution.

Features and Benefits:

  • Milgard has engineered its signature vinyl formula to withstand even the harshest weather conditions while requiring little to no maintenance over time.
  • Milgard is one of two vinyl window manufacturers in the US who make their own vinyl from vinyl powder to frame, controlling the quality of ingredients.
  • Tuscany frames have multiple interior walls for added strength and energy efficiency.
  • Built to be heat-stable in partnership with Energy Star to ensure they meet the thermal and solar requirements of the Seattle area.
  • Even sightlines and customization options create a natural and aesthetically pleasing effect in every room.

Milgard Tuscany Series V400 Vinyl Horizontal Sliding Windows

Window Configurations Combinations Hardware Features Color Options Grid Options Glass Textures Tint Options Screen Options
Picture
Round top
Quarter round
Half round
Arch top
Round top with picture
Arch top with picture
Gable (3-side, 4-side, 5-side)
Octagon
Full Round
Picture with single-hung on either side
Picture with casement on either side
Picture with awning below
Folding Nesting Operator
Sash locks

Interior Colors
White
Tan

 

 

Exterior Colors
White
Tan
Silver
Brown
Espresso
Bronze

Flat GBG Grid
Sculptured GBG Grid
Simulated Divided Lite Grid
2 1/4 ” Check Rail
Obscure Aquatex
Obscure Clear 42
Obscure Delta Frost
Obscure Frosted Glue Chip
Obscure Glue Chip
Obscure Matelux
Obscure Narrow Reed
Obscure P516
Obscure Rain
Cardinal Low-E
Solar Bronze
Solar Gray
Standard Mesh
PureView Mesh
Milgard Tuscany Series V400 Vinyl Horizontal Sliding Window Size Chart

If you’re a homeowner looking for a modern vinyl sliding window, look no further than the Milgard Trinsic V300 Series. Milgard has designed the Trinsic Series frames and hardware to disappear from view while maximizing available glass surface area. The results are sleek, contemporary windows capable of modernizing any home.

Features and Benefits:

  • Milgard’s signature vinyl formula is engineered to withstand even the harshest weather conditions while requiring little to no maintenance.

  • A contemporary look created by utilizing thin frames and low-profile hardware.

  • Customizable design options, including new black interior and exterior frames.

  • Engineered with Milgard’s unique, high-performing, energy-efficient vinyl formula

Milgard Trinsic Series V300 Vinyl Horizontal Sliding Windows

Window Configurations Hardware Features Color Options Grid Options Glass Textures Tint Options Screen Options
Half-vent
Half-vent above
Half-vent below
Single-vent
Double-vent
Half-vent below with gable above
Half-vent below with 2-lites above
Half-vent above with 2-lites below
Double-vent below
Double-vent above with 3-lites below
Double-vent below with 3-lites above
SmartTouchⓇ Locking Interior Colors

Interior Colors
White
Tan
Black (capstock)

Exterior Colors
White
Tan
Silver (painted)
Brown (painted)
Espresso (painted)
Bronze (painted)
Black (capstock)

Flat GBG Grid
Sculptured GBG Grid
Simulated Divided Lite Grid
2.25″ Check Rail
Obscure Aquatex
Obscure Clear 42
Obscure Delta Frost
Obscure Frosted Glue Chip
Obscure Glue Chip
Obscure Matelux
Obscure Narrow Reed
Obscure P516
Obscure Rain
Cardinal Low-E
Solar Bronze
Solar Gray
Standard Mesh
PureView Mesh
Milgard Trinsic Series V300 Vinyl Horizontal Sliding Window Size Chart

Anderson E-Series clad-wood windows are a luxurious and timeless option for homeowners looking to add character and warmth to their home. These windows are made with high-quality wood with various customizable options, including multiple wood species and finishes. Each wood product is clad to resist the elements and provide a low-maintenance exterior that never needs painting. Where Andersen leads the industry is the variety of ways their wood is protected. The E-Series Windows are energy-efficient, sturdy, and durable, making them a reliable choice for homeowners looking to add a classic and high-end touch to their home. 

Features and Benefits: 

  • An extensive array of design finishes and color options.

  • Traditional hardware colors and designs for that old-world charm.

  • Factory-finished and customizable options are available upon request.

  • Energy Star certified and independently tested to meet strict efficiency standards.

  • Insulated framing provides vastly superior performance than standard wood replacement windows.

Andersen E-Series Wood-Clad Horizontal-Sliding Windows

Window Sizes Hardware Features Wood Species Finish Options Grid Options Glass Options

View Size Chart


Hardware Features
Sash Lock
Finger Pull

Hardware Finishes
White
Black
Polished Brass
Gold
Bronze

Interior Wood Species
Pine
Maple
Verticle Grain Doug. Fir
Oak
Mahogany
Alder
Mixed Grain Doug. Fir
Hickory
Cherry
White Oak
Walnut

Wood Finish
Unfinished
Stained

Exterior Paint Options
50+ Color Options

Interior Painted Pine
White
Birch Bark
Primed (for paint)
Black
Sandtone
Canvas
Prairie Grass
Terratone
Forest Green
Dove Grey
Dark Brone
Cocoa Bean
Red Rock
Anodized Silver

Prairie
Diamond
Colonial
Fractional
Victorian

Low-E4
SmartSun
Sun
Heat Lock Coating
PassiveSun
Triple-Pane
Clear Dual-Pane

Glass Spacers
Black
White
Stainless Steel

Top-Rated Window Replacement Services

At Lake Washington Windows and Doors, we offer the highest quality windows and unparalleled customer service, with over 800 5-star reviews. With each installation, our exclusive Leak Armor Installation provides superior protection around your window openings. When you choose us for your window installation project, you can be sure that you’re getting the best.

Financing Options with Convenient 10 Minute Approvals   

In addition to special offers and promotions, ask  our sales representative about our quick, digital financing application process.  From low-interest traditional loans to no down-no payment-no interest deferred financing plans,  we can help you fund your replacement window project so you can mobilize your cash for other investments.  We are a proud partner of GreenSky, one of the largest lenders for the home improvement industry.   See how much you can be pre-approved for.  

Every Window Includes a Limited Lifetime Warranty

The beauty of working with the top window manufacturers in the industry is the support you can expect before, during, and after installation. Both Milgard and Andersen offer limited lifetime warranties. However, the likelihood that you’ll need to take advantage of these warranties is low.

Milgard Lifetime Warranty Guarantee

Milgard’s award-winning windows and doors are built to last. However, if you ever encounter an unexpected problem, you can rest assured that their lifetime warranties cover your purchase.

Andersen Limited Lifetime Warranty Guarantee

Andersen prides itself on crafting durable, long-lasting products. That resilience allows them to offer some of the best warranties in the industry. They're even transferable should you sell your home. With Andersen’s exclusive Owner-to-Owner® limited warranties, you get peace of mind plus real added value.

Receive Our Patented Leak Armor Protection with Every Installation

We include our patented Leak Armor protection with every window we install. Developed through thousands of customer installations and years of experience, we utilize layers of flashing, pans, and sealants in a specific manner to provide commercial-grade sealing to residential homes.

Horizontal Sliding Window FAQs

Do horizontal sliding windows require additional framing?

Horizontal sliding windows do not require additional framing as they can fit within the existing window frames. If you’re unsure about the size of your frame, don’t worry about it! Our team can assess the space and help you find the right size window to fit your needs.

Are sliding windows safe?

When it comes to home security, most sliding windows are very secure. They often have multiple locking points and can be reinforced with the classic piece of wood in the sliding track. Depending on their placement, they can also be a safe choice for homeowners with small children if they cannot be easily reached.

How do I determine the size of the replacement window I need?

Don’t worry about the measurements! The first step in our replacement process is scheduling a convenient time for a window specialist to visit your home and complete a complimentary, no-sales-pressure consultation. During this time, we’ll inspect your home windows or doors and take measurements so you don’t have to.

How long does it take to install horizontal sliding windows?

The amount of time it takes to install horizontal sliding windows varies depending on the complexity and size of the project. However, we generally take 2-5 days to complete the installation.