Seattle Vinyl Windows

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If it’s time to upgrade the windows in your Seattle home, consider the efficient, lasting, and affordable options available at Lake Washington Windows and Doors. We offer top-quality new or replacement windows from the most trusted local manufacturers in the industry. Once your new windows are installed, you’ll notice a remarkable transformation in your home’s appearance, comfort, and energy efficiency.

Why We Love Vinyl Windows

Material Vinyl Fiberglass
Cost $$ $$$
Durability Very Good Excellent
Maintenance Low Low
Energy Efficiency Very Good Excellent
Sound Insulation Very Good Excellent

 

Vinyl, composed of ethylene and chlorine, is the second most prevalent plastic polymer globally, known as polyvinyl chloride (PVC). This material forms the core of all vinyl window frames. However, not all vinyl windows are created equal. The quality heavily relies on the components included in the manufacturing formula.

Our vinyl windows incorporate more than just the basics. They feature specialized UV stabilizers that reflect harmful UV rays, preventing material degradation, and titanium dioxide ensures the windows are heat-stable and perform excellently under various conditions.

Top Benefits of Vinyl Replacement Windows

  • Energy efficiency: Vinyl windows are an excellent choice for those seeking to improve their home’s energy efficiency.
  • Cost-effectiveness: These windows provide the benefits of more expensive materials without the hefty price tag.
  • Longevity: Vinyl windows are not only durable but also boast a lifespan of 20 to 40 years, making them a fantastic long-term investment.
  • Low maintenance: With vinyl, upkeep is minimal as these windows are easy to clean and require little maintenance.
  • Versatility: Available in a wide range of styles and colors, vinyl windows can match any home decor.
  • Ease of use: Lightweight and user-friendly, vinyl windows ensure effortless operation.

Our Trusted Vinyl Window Provider

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We leverage over three decades of experience in the window industry to select vinyl window manufacturers who offer the optimal combination of quality, affordability, and value. Our chosen manufacturing partners excel in four key areas: consistent quality and service, comprehensive warranty support, proven industry longevity, and continuous product innovation. Trust us to bring you the best in vinyl window solutions.

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LW Del Mar Premium Vinyl Windows

The LW Del Mar Series is designed to excel. These premium vinyl windows are crafted for superior durability, featuring advanced UV protection to guard against sun damage and high-performance glass for exceptional energy efficiency. Combining cutting-edge technology with sleek, symmetrical sightlines, the LW Del Mar Series delivers a refined aesthetic and lasting performance, making it the perfect choice for any home.

Key Features and Benefits:

  • Superior energy efficiency: LW Del Mar Series windows feature advanced Comfort•Core™ foam insulation and high-performance glass packages, helping to reduce energy costs and maintain year-round comfort.
  • Durability and longevity: Built with premium vinyl and reinforced materials, LW Del Mar Series windows can withstand harsh weather conditions while maintaining structural integrity.
  • Noise reduction technology: Sound suppression features significantly minimize external noise, providing a quieter and more peaceful indoor environment.
  • Enhanced security: Robust locking systems and optional laminated security glass offer added protection and peace of mind.
  • Sleek, balanced design: Symmetrical frames and even sightlines create a polished, timeless look that enhances your home’s aesthetic appeal.

Glass Packages

Quality

Window Types

Design

Security

Energy Efficiency

Noise Reduction

Warranty

SunMatrix

Weather-Tight Seal

Single Slider

Even Sightlines

First Guard

Comfort•Core™

Sound Package

Limited Double Lifetime

Infinit-e

Smooth Operation

Single Hung

Maximum View

Sash Dead Bolt

Inner•Core™

   

SunShield

Heavy-Duty Screen

Picture

Ventilation Latch

Continuous Interlock

     

CoolShield

XTRU

Geometric

         

Luminance

Armor

           

QuadraTherm

             

 

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LW Del Mar Expanded Premium Vinyl Windows

The LW Del Mar Expanded series is for homeowners who value enhanced natural light, wider sightlines, and a sleek, modern aesthetic. Based on the trusted design of the original Del Mar line, this series offers outstanding thermal performance, sound insulation, and security, with a slimmer frame that increases the amount of visible glass. It’s a great fit for open floor plans, contemporary homes, or any space where connecting with the outdoors and boosting daylight is a priority.

Key Features and Benefits

  • Streamlined frame design: Thinner frame edges maximize glass area and minimize visual barriers, brightening your interiors and improving your outdoor views.
  • Same trusted performance as Del Mar: Equipped with Comfort•Core™ insulation, Inner•Core™ reinforcement, triple-fin weatherstripping, and sound-reducing glass, just like the original Del Mar windows.
  • Suits contemporary design: The sleek, low-profile frame complements transitional and modern styles, delivering a clean, updated look.
  • Versatile style choices: Offered in various styles and configurations – including single-hung, slider, picture windows, and custom shapes – to match your unique design needs.
  • Efficient and secure: Holds the same ENERGY STAR® ratings and supports optional multi-point locking systems for year-round comfort and protection.

Glass Packages

Quality

Window Types

Design

Security

Energy Efficiency

Noise Reduction

Warranty

SunMatrix

Weather-Tight Seal

Single Slider

Even Sightlines

First Guard

Comfort•Core™

Sound Package

Limited Double Lifetime

Infinit-e

Smooth Operation

Single Hung

Maximum View

Sash Dead Bolt

Inner•Core™

   

SunShield

Heavy-Duty Screen

Picture

Ventilation Latch

Continuous Interlock

     

CoolShield

XTRU

Geometric

         

Luminance

Armor

           

QuadraTherm

             

 

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LW Coronado Series Vinyl Windows

The LW Coronado Series offers versatility and exceptional performance, making it the perfect choice for homeowners seeking style and functionality. Available in various operating styles, LW Coronado Series windows are built with durable vinyl construction and advanced energy-efficient technology, delivering long-last performance, enhanced comfort, and reduced energy costs. 

Key Features and Benefits

  • Versatile operating styles: Available in double-hung, double-slider, casement, and awning options, LW Coronado Series windows offer flexibility to suit any room’s needs.

  • Enhanced ventilation: Designed for maximum airflow, LW Coronado Series windows improve indoor air quality and comfort while maintaining energy efficiency.

  • Durable vinyl construction: Crafted for long-lasting performance, these windows resist warping, fading, and wear, requiring minimal maintenance.

  • Energy-efficient technology: With high-performance glass options, LW Coronado Series windows help lower energy costs while keeping your home comfortable year-round.

Glass Packages

Window Types

Quality

Design

Security

Energy Efficiency

Noise Reduction

Warranty

SunMatrix

Double Slider

XTRU

 

Even Sightlines

First Guard

Energy Star Certified

Sound Package

Limited Double Lifetime

Infinit-e

Double Hung

Smooth Operation

Tilt-In Feature

Sash Dead Bolt

     

SunShield

Casement

Easy Clean Glass

Ventilation Latch

Continuous Interlock

     

CoolShield

Awning

Armor

         

Luminance

Bay & Bow

           

QuadraTherm

Garden

           

 

Premium Replacement Window Features for Northwest Homes

When it comes to replacement windows in the Pacific Northwest, quality and performance are essential. From constant rain to fluctuating temperatures, your windows must withstand the region’s unique climate challenges while delivering long-term energy savings, comfort, and security. The LW Del Mar Series from Lake Washington Windows and Doors is engineered specifically for Northwest homes, combining premium materials with innovative design. Below is a detailed overview of the standout features that distinguish our windows.

 
Engineered LW XTRU™ Vinyl Frame Our exclusive LW XTRU™ vinyl frame is infused with titanium dioxide for added strength, UV resistance, and thermal stability. It features fusion-welded corners that create an airtight seal, ensuring superior performance and longevity.
Foam-Insulated Architectural Frame The LW Del Mar Series models are designed with low-conductance Comfort Core™ foam insulation, inserted into specific dead air chambers within the frame to enhance thermal performance and energy efficiency.
Weather-Tight Performance Our antimicrobial triple-fin weatherstripping provides four layers of protection to block wind, moisture, dirt, and bacteria. This tight seal is key to maintaining comfort and indoor air quality during Seattle’s wettest months.
Heavy-Duty Screens with Antimicrobial Mesh LW’s Aluma-Force™ heavy-duty screen frames are constructed with thick extruded aluminum walls and infused with antimicrobial protection, coated with watershed technology to improve visibility, airflow, and insect resistance.
Optional Sound Package The LW Sound Package features varying glass thicknesses and argon gas layers, reducing unwanted noise by up to 50%. This feature minimizes sound wave bounce and vibration to keep your indoor spaces peaceful and quiet, even in urban or high-traffic areas.
Enhanced Security and Structural Reinforcement Every window is built with fiberglass reinforcement and interlocking rails to resist forced entry. Locking hardware is firmly anchored to the frame and reinforced with a rigid fiberglass inner core, ensuring our windows exceed industry standards for structural integrity and break-in resistance, providing you with greater peace of mind.
High-Performance Glass Options Del Mar Series windows come standard with LW Armor™, a peel-off film that keeps glass surfaces clean during transport and installation. Other key features include the 3-layer LW Infinit-e coating, PLUS Easy Clean Coating, the Platinum Elite Spacer, True Dual Seal, Moisture Stop, and Argon Gas insulation — all working together to provide unmatched energy efficiency and clarity.
Energy-efficient glass upgrade options For added performance beyond standard double-pane insulation, consider premium upgrades like LW SunMatrix, which blocks 99% of UV rays with a 4-layer Low-E coating, or LW QuadraTherm, which utilizes multi-layer heat retention technology for maximum insulation. LW SunShield features a blue-gray exterior tint that reduces glare and minimizes solar heat exposure, making it ideal for south- and west-facing windows.
Premium Glass Features & Upgrades LW SR50 Sound Reduction Glass comes standard with Del Mar windows and reduces outside noise by up to 50%. Optional upgrades include First Guard Laminated Security Glass, which meets ASTM F1233 standards for forced entry protection, and LW 4X Tempered Safety Glass, which is up to four times stronger than standard glass and shatters in small, break-safe pieces to reduce injury risk.
Exclusive Leak Armor™ Installation Every LW Series vinyl window installed by Lake Washington Windows and Doors features our patented Leak Armor™ installation method, specifically designed for the Pacific Northwest’s wet climate. It adds an extra layer of waterproofing protection around the window opening.  Flashing tape integration, multiple moisture barriers, and expert sealing techniques prevent water intrusion at the most vulnerable points.
Limited Double Lifetime Warranty Your investment is protected by one of the most comprehensive warranties in the industry. The LW Series comes with a limited double lifetime warranty that covers both the product and the installation, providing peace of mind for as long as you own your home. Even better, this warranty is fully transferable to the next homeowner, adding to the resale value and providing assurance for future buyers.

Vinyl Window Options for Every Window Style

Whether you need a traditional or contemporary style, Lake Washington Windows and Doors offers a vinyl replacement window that suits your needs. We proudly offer options in all eight of the primary home window styles:

Picture windows with transom

Picture Windows

Picture windows are fixed and don’t open, offering an unobstructed view of the outdoors and flooding your space with natural light. They enhance your home’s architectural aesthetic, serving as a striking focal point in design.

casement ultra c650 fiberglass

Casement Windows

Hinged at the side and opening outward, casement windows provide excellent ventilation. Operated with a crank or lever, casement windows also feature a tight seal for superb insulation.

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Single-Hung Windows

Single-hung windows feature a fixed top sash and a movable bottom sash that slides vertically, making them a cost-effective and popular choice. They offer a traditional appearance and are simpler to install than more complex window styles.

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Double-Hung Windows

Double-hung windows have two operable sashes, top and bottom, instead of only one operable bottom sash, providing better ventilation and an added level of safety for homeowners with small children.

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Awning Windows

Awning windows are hinged at the top and open outward from the bottom, shielding against rain while enhancing ventilation. Their unique design is perfect for adding airflow above doors or other windows.

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Sliding Windows

Designed to save space, sliding windows feature one sash that slides horizontally over another, making them ideal for areas with limited exterior space, such as walkways, patios, or along busy streets.

Modern Alcove Bay Windows

Bay and Bow Windows

Bay and bow windows project out from the wall to create a curved appearance that adds space, volume, and light to any room. They offer expansive views and are a dramatic centerpiece in large spaces such as living rooms, dining rooms, or master suites.

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Specialty Windows

Customized to fit unique spaces and design schemes, our specialty-shaped windows offer endless customization possibilities. These windows can be designed to fit virtually any dimension and shape, adding unique character and distinction to your home.

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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.

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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.

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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.  

warranty

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.

leak armor

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.

FAQs – Seattle Vinyl Windows

Do vinyl windows increase home value?

Absolutely. Due to the high performance and design options, vinyl windows generally increase the value of most homes, especially those with older, inefficient windows. 

How do vinyl windows compare to fiberglass windows?

When considering different materials for windows, vinyl represents a solid, cost-effective option, as it is a material that will provide a strong return on investment (ROI) for your new windows.

Fiberglass windows top the chart in terms of durability and energy efficiency, but they come at a higher price. Vinyl windows, on the other hand, provide commendable performance at a more accessible price point, making them ideal for value-conscious homeowners.

The choice between these materials often comes down to aesthetic preference. However, vinyl windows are the most economical for those looking to maximize value due to their lower material costs.

Should I replace all my windows at once?

While replacing all your windows at once is unnecessary, doing so can improve your home’s value and energy efficiency, lower your utility bills, and provide enhanced security. Additionally, we can offer a better price when ordering in quantity versus individual replacements. 

What makes vinyl such an energy-efficient window material?

Vinyl is an energy-efficient window material because it is an excellent insulator, manufactured to be impervious to weather, low-maintenance, and lightweight while still providing the insulation needed to reduce heat loss in winter and heat gain in summer, resulting in lower overall energy consumption.

How long do vinyl windows last in Seattle’s climate?

High-quality vinyl windows, such as the LW Series, are built to last 30 years or more, especially when installed using moisture-resistant methods like our Leak Armor system.

Do vinyl windows require any maintenance?

Vinyl windows are virtually maintenance-free. They don’t require painting, staining, or sealing and can be easily cleaned with mild soap and water.

Will vinyl windows warp or discolor over time?

 Our premium vinyl windows are made with titanium dioxide-infused material to prevent warping, chalking, and discoloration. This ensures long-term durability, even in the face of constant exposure to UV rays and moisture common in the Seattle area.

Can I customize the look of my vinyl windows?

Yes. Our LW Series vinyl windows come in a wide range of exterior colors, interior finishes, hardware upgrades, grid patterns, and obscure glass styles.

Are vinyl windows secure?

Absolutely. The LW Series includes reinforced fiberglass frames, secure cam locks, optional True Action auto-locking systems, and even stainless steel sash deadbolts on sliding windows. Combined, these features provide reliable protection against forced entry.