Seattle Single-Hung Windows
Are you struggling with sticking, inefficient single-hung windows? If so, Lake Washington Windows and Doors has the solution for you. Call us today, and we’ll swap your home windows in Seattle with high-quality replacement windows from industry-leading manufacturers.
Single-Hung Windows Defined
Single-hung windows are one of the most common window types homeowners use worldwide. They are rectangular and have two sashes: a fixed upper sash and a lower operable sash that slides vertically to provide ventilation. Single-hung windows are highly functional, secure, and energy-efficient, providing more natural light.

We’ve Carefully Chosen the Top Window Manufacturers For You
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 best single-hung window replacement manufacturers that provide a great blend of quality, price, and VALUE. Our chosen manufacturing partners create value in four essential areas:
- Consistency of quality and service over the years
- Level of warranty support to you
- Industry longevity
- Product innovation.
Our valued manufacturer partners for single-hung windows are:
Best Applications
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Great for any room of the house, especially on upper floors, with a diverse range of shapes, trims, and finishes
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An economic window style with lower installation costs compared to other window types
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For those looking to maximize energy efficiency while maintaining functionality
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Perfect for easy-to-reach locations
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Great for saving square footage in small spaces while providing natural light and ventilation
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For those who desire added security with locking systems that won’t break or fail easily
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LW Series Premium Vinyl Single-Hung Windows
The LW Series features a symmetrical design, balanced sightlines, and exclusive upgraded features. These windows are crafted to deliver outstanding energy efficiency and year-round comfort, helping to reduce energy costs while offering effortless operation and superior noise reduction. LW Series windows are built with advanced engineering and premium materials, combining exceptional performance with elegant design to enhance any home.
Features and Benefits:
- Equipped with high-performance glass and Comfort•Core™ foam-filled frames, these windows help maintain a comfortable indoor environment year-round, reducing energy costs.
- The standard Sound Package reduces outside noise by up to 50% compared to typical dual-pane windows, creating a quieter indoor environment.
- Constructed with premium vinyl materials, LW Series single-hung windows ensure long-lasting performance with minimal maintenance.
- The bottom sash tilts inwards, allowing for convenient cleaning from inside your home.
- Optional laminated security glass provides greater protection from home invasions, adding critical response time and deterring break-ins.
Window Types | Energy Efficiency | Glass Packages | Noise Reduction | Design | Quality | Security | Warranty |
Single Slider | Comfort•Core™ | SunMatrix | Sound Package | Even Sightlines | Weather-Tight Seal | First Guard | Limited Double Lifetime |
Single Hung | Inner•Core™ | Infinit-e | Maximum View | Smooth Operation | Sash Dead Bolt | ||
Picture | SunShield | Ventilation Latch | Heavy-Duty Screen | Continuous Interlock | |||
Geometric | CoolShield | XTRU | |||||
Luminance | Armor | ||||||
QuadraTherm |
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. 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:
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Extremely durable with an expected lifespan of nearly 80 years.
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Strong frame material allows for large custom sizes
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Paintable frames that homeowners can update to match current home color trends
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Low expansion/contraction rate through 100-degree temperature changes means less glass and caulking failure over time
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An Energy Star package tailored to the Seattle region for optimal energy efficiency.
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Custom colors, hardware, and glass options to match any home design.
Configurations | Hardware Features | Color Options | Grid Options | Glass Textures | Tint Options | Screen Options |
Single-Hung | Positive Action® Lock | Interior Colors | Interior Grids | Obscure Aquatex | Cardinal Low-E | Standard Mesh |
Double single-hung | Cam Lock (optional) | White (any exterior color) | Flat GBG Grid | Obscure Clear 42 | Solar Bronze | PureView Mesh |
Gable top single-hung | Sash Pull | Harmony (harmony exterior only | Sculptured GBG Grid | Obscure Delta Frost | Solar Gray | |
Double single-hung with center lite | Bark (bark exterior only) | 3/4″ Vintage SDL | Obscure Frosted Glue Chip | |||
Triple single-hung | Black bean (black bean exterior only) | 1-1/8″ Vintage SDL | Obscure Glue Chip | |||
Exterior Colors | 1-1/8″ Craftsman SDL | Obscure Matelux | ||||
Frost | 1-1/8″ Legacy SDL | Obscure Narrow Reed | ||||
Harmony | Exterior Grids | Obscure P516 | ||||
Bark | Flat GBG Grid | Obscure Rain | ||||
Black bean | Sculptured GBG Grid | |||||
3/4″ Vintage SDL | ||||||
1-1/8″ Vintage SDL | ||||||
1-1/8″ Craftsman SDL | ||||||
1-1/8″ Legacy SDL |
COMMERCIAL-GRADE Installation
Leak Armor Lifetime Installation Guarantee
When it comes to preserving the lifespan of your new windows and doors, installation matters. Thousands of window and door installations have honed our replacement process to perfection. For each project, our team follows a streamlined 3-step process to ensure you experience minimal delays and inconvenience before enjoying the benefits of your new window or door.
Top-Rated Window & Door 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 & Door 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. Milfard offers a limited lifetime warranty. However, the likelihood that you’ll need to take advantage of the 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.
Every Installation Includes Leak Armor Commercial-Grade Protection
Our exclusive Leak Armor protection is included with every window we install. Developed through thousands of customer installations and years of experience, we utilize multiple layers of flashing, pans, and sealants in a specific manner to provide commercial-grade sealing to residential homes.
Single-Hung Window FAQs
What is the difference between Double-Hung and Single-Hung windows?
The primary difference between single-hung and double-hung windows is the operable sashes. While both the top sash and bottom sash of a double-hung window are operable, single-hung windows only have one operable lower sash.
Are single-hung windows cheaper than sliding or double-hung windows?
Single-hung windows are typically much cheaper than both sliding and double-hung windows. Single-hung windows can save homeowners up to 20% per window compared to double-hung prices, which adds up when considering the number of windows a home requires.
Is there a difference between single-hung windows and single-sash windows?
While the terms are often used interchangeably when referring to single-hung windows, it’s essential to know that there is a difference between them.
Single-hung windows feature two sashes (a top sash and a bottom sash) that are superiorly connected, whereas single-sash windows feature a single sash that slides up and down. Additionally, single-hung windows often feature tilt-in sashes, making cleaning the window from inside your home easier.
Should I choose single-hung or casement windows?
Ultimately, the decision of which type of window to choose depends on your preference, budget, and lifestyle needs. Single-hung windows are economical because they feature a simple design and easy operation. Whereas casement windows provide excellent ventilation and easy cleaning due to their hinged design, they are typically more expensive.