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6550 Sliding Windows

A contemporary design with solid performance, the 6550 Slider offers an open view and a wide selection of customizable features.

Exclusively Sold at The Home Depot®

How To Buy
CONVENIENT OPERATION

Both sash easily glide open horizontally for fresh air.

ENHANCED INSULATION

Glass units are set ¾ inch into the sash, providing optimal insulation and interior comfort.

BUILT TO LAST

Fusion-welded construction creates a one-piece frame and sash for reliable strength and durability.

CUSTOM MADE

Custom built to the exact size and specifications of your home to ensure proper installation and performance.

6550 Sliding Window

  • 1. FLEXIBLE WINDOW STYLE

    Sliding windows are available in 2- or 3-lite configurations. The end vent slider window has three lites with operable end vents, making it perfect for replacing picture windows to gain ventilation.

  • 2. SMOOTH OPERATION

    Corrosion-resistant* rollers and anti-bowing roller track provide a lifetime of convenient operation.

  • 3. DURABLE CONSTRUCTION

    Fusion-welded construction provides unmatched durability, strength and performance.

  • 4. EFFICIENT INSULATION

    Multi-chambered vinyl profiles increase strength and thermal efficiency. Advanced weather stripping creates a strong barrier against air and water infiltration.

  • 5. PROTECTION FROM THE ELEMENTS

    Interlocking meeting stiles create a tight seal against air and rain infiltration.

  • 6. EASY TO CLEAN

    Lift-out sash can be removed to assist in maintenance.

  • 7. FUNCTIONAL DESIGN

    Contoured pull stiles are easy to access and molded into the sash for dependable performance over time.

  • 8. SUPERIOR SAFETY & SECURITY

    Dual, low-profile, color-matched cam locks secure the window tightly against the elements. Air Lok™ can be engaged to limit the amount a window can be opened for safer ventilation.


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ENERGY STAR® WINDOWS

Simonton offers optional region-specific ENERGY STAR glass packages designed to deliver optimal energy performance and comfort in any climate.

AAMA GOLD CERTIFICATION

The AAMA Gold Label on Simonton-built windows and doors verifies our products are manufactured to the industry-leading AAMA Gold Certification Program. This quality assurance testing delivers durable, weather-resistant and energy-efficient products for your home.

DISC: * Corrosion-resistant refers to use in normal weather conditions without excess salt and debris in the atmosphere.

Glass Options

Glass packages impact your heating and cooling costs, as well as your home’s comfort . Customize your windows for desired performance and to meet ENERGY STAR® guidelines in any region.

ProSolar® Low-E Glass
  • For Moderate, Four-season Climates

    Standard on all windows and doors, ProSolar® Low-E Glass helps keep warm air in during the winter months. In summer, it helps deflect external heat and retains cooled air.

  • For Warm Climates

    Optional ProSolar® Shade Low-E Glass offers optimal solar control, helping meet interior cooling needs. A triple silver layer further improves insulation and comfort.

  • For Hot, Sunny Climates

    Optional ProSolar® Shade Plus Low-E Glass offers exceptional solar control, blocking up to 98% of UV rays for increased fade protection and glare control. Its self-cleaning exterior uses sunlight to repel dirt, keeping glass cleaner.

  • For Colder Climates

    Choose ProSolar® Sun Low-E Glass to let the sun’s warming rays in while blocking heat loss to help homes stay warm and reduce heating costs.

  • Superior Insulation

    PLUS4 is an interior-surface Low-E option paired with our ProSolar glass packages. It reflects heat back into your home for a warmer interior and added comfort in colder climates.


Gas Fill
Standard

Argon gas (six times denser than air) is sealed between the glass panes to increase insulation and reduce energy loss.

Optional

Upgrade to Krypton gas (twelve times denser than air) for maximum thermal efficiency.

Glass Upgrades
  • Triple-pane Glass

    Three panes of double-strength glass create two separate air spaces for exceptional thermal performance and interior comfort.

  • Sound & Security Glass

    Laminated glass consists of a durable interlayer sealed between two layers of glass that resists forced entry, significantly diminishes unwanted sound and deflects up to 99% of damaging ultraviolet (UV) rays that can cause interior fading.

  • Safety Glass

    Heat-strengthened tempered glass is stronger than regular glass and safely breaks down into pebbles if broken. Tempered glass is often a building code requirement for use in bathrooms and windows near the floor

  • Privacy Glass

    Obscure glass has a textured pattern to maximize privacy while allowing ample natural light into your home.

  • Tinted Glass

    Bronze or gray tinted glass helps control solar heat gain and reduce glare and visibility into your home.


Gas Fill
Standard

Argon gas (six times denser than air) is sealed between the glass panes to increase insulation and reduce energy loss.

Optional

Upgrade to Krypton gas (twelve times denser than air) for maximum thermal efficiency.

Spacer Systems

Glass panes are separated by a spacer system, which helps seal in functional gas and create an airtight sea.

Standard

The Supercept™ spacer system utilizes a stainless-steel alloy that offers increased durability and thermal efficiency

Optional

The non-metallic foam Super Spacer® is non-conductive and virtually eliminates temperature transfer

6550 Design Options

Vinyl Interior & Exterior Colors
Laminate Interior Colors
* Woodgrain Laminate Interior with White/Tan Vinyl or a Custom Exterior Color. Black Laminate Interior with Black Laminate Exterior. White Laminate Interior with Driftwood or Tan Vinyl Exterior.
Laminate Exterior Colors
* Black laminate exterior with black laminate or white vinyl interior. Bronze laminate exterior with bronze laminate or white vinyl interior.

Cam Locks

The cam lock pulls your window sash together to keep it locked, secure and weather resistant. Cam locks are found on double hung and sliding windows.

Nesting Crank Handle

Casement and awning windows feature a convenient nesting handle that folds neatly away into the base and a multi-point locking lever that secures the window.

Color-matched Crank Handle & Lock Finishes
Premium Crank Handle & Lock Finishes

Simonton 6550 windows feature an energy-efficient 7/8′′ insulating glass unit with double-strength ProSolar® Low-E Glass, Argon gas and the Supercept® spacer system. Additional glass options enhance acoustics, security, privacy and fade protection.

  • ENERGY STAR® Certified

    Simonton offers optional region-specific glass packages that meet ENERGY STAR guidelines for optimal energy performance and comfort in any climate.

  • Triple-pane Glass

    Three panes of double-strength glass create two separate air spaces for optimal thermal performance and interior comfort.

  • Privacy Glass

    Obscure glass has a textured pattern to maximize privacy while allowing ample natural light into your home.

  • Tinted Glass

    Bronze or gray tinted glass helps control solar heat gain and reduce glare and visibility into your home.

  • ENERGY STAR Most-Efficient

    Select 6550 window styles with triple-pane glass are recognized as Most Efficient by ENERGY STAR in 2025, identifying the best-performing ENERGY STAR windows available.

  • Sound & Security Glass

    Laminated glass consists of a durable interlayer sea led between two layers of glass that withstands forced entry, greatly reduces unwanted sound and deflects up to 99% of damaging ultraviolet (UV) rays that can cause interior fading.

  • Coastal Impact Protection

    Offering 24/7 impact protection and durable weather resistance, 6550 windows with SafePoint® impact-resistant laminated glass deliver Missile C level certification for homes in inland coastal areas.

  • Safety Glass

    Heat-strengthened tempered glass is stronger than regular glass and safely breaks down into pebbles if broken. Tempered glass is often a building code requirement for use in bathrooms and windows near the floor.

Choose architecturally inspired grille profiles and patterns to highlight your home’scharacter. Grilles are placed between the glass to create a smooth, easy-to-clean surface onthe inside and outside of your home.

Simonton 6550 operable windows include an extruded screen frame with matching finishes and fiberglass screen mesh designed to allow fresh air in and help keep insects out.

Double Hung & Sliding Window Screens

Double hung and slider windows feature a durable extruded screen frame with a concealed spring system for easy removal. The standard half screen can be upgraded to full screen on select windows. Choose aluminum screen mesh for increased durability.

Casement & Awning Window Screens

Hinged windows have a full extruded screen frame with fiberglass screen mesh placed on the window’s interior.

How To Buy

Simonton windows and doors are sold through our large network of trusted contractors, retail stores and distributor locations.

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