CUSTOM-BUILT VINYL WINDOWS

Replacement Windows for Every Home

Modern vinyl replacement windows from Window Nation won't melt or crack - and they're among the most energy-efficient windows you can buy.

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What are Replacement Windows?

Replacement windows are new window units installed into your existing openings to improve comfort, efficiency, and curb appeal. Window Nation’s modern vinyl replacement windows are built to resist warping, melting, and cracking, and they’re designed to deliver strong energy performance which helps to reduce heat loss in winter and heat gain in summer. If you’re comparing window materials, vinyl is a popular choice because it offers durable performance with low maintenance, while still providing an efficient frame system for everyday living.

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Our Window Replacement Styles

Double Hung Windows about Double Hung Windows

Our most popular style of replacement window, custom made using robotics to ensure the best fit.

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Sliding Windows about Sliding Windows

Convenient, classic, and fully customizable to your home.

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Casement Windows about Casement Windows

Also known as crank-out windows, replacement casement windows offer a flexible style that's great for anywhere you're reaching to open a window, such as over the kitchen sink.

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Bay Windows about Bay Windows

Turn your windows into a statement with energy-efficient bay windows.

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Bow Windows about Bow Windows

Similar to bay windows but more curved than angular, these make a statement.

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Garden Windows about Garden Windows

The perfect option for a kitchen garden or miniature greenhouse in your home.

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Specialty Windows about Specialty Windows

Custom window shapes developed for your home, from half-circle to triangle and more.

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Why Window Nation

Lifetime Warranty

Windows so good, we proudly back them with a lifetime, transferable warranty.

Easy to Afford

With easy payment plans, available low interest rates, and easy terms, we fit your budget.

Expert Installation

Only professional installers - many with over 15 years' window installation experience.

Nationally Trusted

Our company installed over 3 million windows nationwide - trusted by over 150,000 homeowners.

At Window Nation, we know replacement windows. We’re proud to offer homeowners high-quality custom window replacements to meet their home improvement needs. Each of our vinyl windows are available in a variety of styles to give your home a much-needed curb appeal boost. Choose between double hung, sliding, casement, bay, and bow windows to compliment your home. No matter the style you choose, you can feel comfortable knowing your new replacement windows will be custom-built specifically for you.

You’ll enjoy more than just a curb appeal boost when replacing windows: each of our window replacements are built with premium window technology features such as energy efficiency enhancements to help you save money and reduce costs on your energy bills. Choose between double pane and triple pane windows, each available with a Low-E coating and Argon gas between the panes for maximum energy efficiency.

When it comes to replacing your windows, it’s important to remember that new windows aren’t just for your living room or bedroom: we’re proud to offer windows for any room in your home at an affordable cost.

We offer basement windows to keep your basement comfortable and energy-efficient. When choosing your windows, don’t forget about the exterior window shutters and screens. We're proud to partner with FlexScreen, a top-of-the-line window screen designed for easy use. FlexScreens are optional on select windows from Window Nation.

As a company we pride ourselves on our attention to detail from measurement to installation, ensuring your windows will be the perfect fit for your home. After your windows are installed, they will be protected by a lifetime warranty and a dedicated customer service team.

*Available only in certain markets

a window replacement expert using a specialized tool on a vinyl window frame

When is it Time for Replacement Windows?

Here are a few common signs homeowners notice — especially as windows age or weather conditions take a toll.

Drafts or uneven indoor temperatures that make rooms feel colder in winter or hotter in summer.
Visible wear like cracked, warped, or foggy window panes.
Condensation between panes (often a sign the seal has failed).
Difficulty opening or closing windows, or sticking hardware.
Higher energy bills that don’t match your usual usage.
Rot or damage around the frame, especially after storms or heavy moisture exposure.
Outdated style or curb appeal — when you want a fresh look and better performance.

If you’re seeing one or more of these issues, a professional window assessment can help confirm whether replacement is the right next step for your home.

Schedule My Free Assessment

A Window Nation expert carrying a replacement window.

Our Windows Come with a Lifetime Promise

At Window Nation, every window we install is backed by our Lifetime Warranty, which covering parts and materials for as long as you own your home. Plus, it’s fully transferable, adding long-term value if you ever decide to sell. That’s quality you can count on, from day one to decades down the line.

Explore Our Lifetime Warranty

Professional Installation for Every Window Replacement

The Window Nation team handles every step of your window replacement, from precise measurement to a thorough cleanup after installation. Our trained professionals will schedule your project, arrive on time, and install your custom replacement windows correctly the first time so you can enjoy improved comfort and energy efficiency with minimal disruption to your day.

View Our Process

a window nation installer properly installing a replacement window

Signs of Improper Window Installation

Even with high-quality vinyl replacement windows, the results depend on proper installation. Here are some common signs of poor window installation to watch for so you can address issues early and protect your comfort and energy savings.

Air leaks around the frame that create drafts or uneven room temperatures.
Water intrusion, such as damp drywall, staining, or moisture around the window after rain.
Gaps or misalignment where the window doesn’t sit flush in the opening.
Difficulty operating the window, including sticking, rubbing, or uneven opening/closing..
Visible caulk or flashing problems, including cracking, missing sections, or improper coverage.
Excessive noise during wind or storms, suggesting poor sealing or fit.

Window Energy Efficiency and Materials

Energy-efficient replacement windows can help reduce heat transfer, limit drafts, and maintain more consistent indoor temperatures throughout the year. Window Nation’s Energy Star premium vinyl windows are available with features such as double- or triple-pane glass, Low-E glass coatings, insulated frames, and Argon gas between the panes. Together, these components help keep outdoor heat out during the summer and heated air inside during the winter.

Window performance also depends on proper measurement, fit, and installation. Window Nation custom-builds each replacement window for the home’s existing openings and professionally seals and insulates around the frame. This combination of energy-efficient window technology and expert installation can improve indoor comfort, reduce strain on heating and cooling systems, and help homeowners avoid energy loss caused by old, damaged, or poorly sealed windows.

Explore Energy Efficient Options

Glass options for your home window replacement
We offer several styles of highly energy-efficient window replacement glass, including triple pane, super spacer to reduce heat loss in your home, and Low-E glass designed to block solar glare. A Solarban coating, which blocks virtually all UV rays so furniture won't fade in the sun, is available for all windows. Our technicians will talk you through the process and recommend a glass package that will protect your home and withstand the climate.
From left to right: Extreme Low-E, Ultra Triple Pane, Ultimate Triple Pane, Solarban 70XL, Super spacer, Laminated Glass
Replacement Window Add-ons
Window Nation offers several superior quality add-ons to help you customize your replacement windows.

Learn more about window add-ons including:
Flexscreen NEAT Glass
TripleSilverLoE® Glass

Frequently asked questions

Are local window replacement services from Window Nation warrantied?

Yes, all Window Nation replacements come with a limited lifetime warranty, and our local teams ensure your windows are installed to your exact specifications.
Can I finance my window replacement?

Absolutely. Window Nation offers flexible financing options for customers in every region we serve. Our technicians will help you find a payment plan that works for you.
Does Window Nation offer financing or seasonal promotions for kitchen window replacement?

Absolutely. You can get flexible financing plans and limited-time offers available year-round to help fit your budget.
How do I get a price or quote for a replacement door?

Because Window Nation’s doors are custom-made, the company does not publish standard prices. You can schedule a free consultation where a specialist will measure your opening, discuss your options, and provide a detailed estimate.
How long does it take to replace a double hung window?

Professionals can install most double hung windows in under an hour per window. Larger jobs or homes with unique structures may take a bit longer, but our experienced technicians work quickly and cleanly to ensure minimal disruption.
What is the best window material: vinyl, wood, or fiberglass?

For most homeowners, premium vinyl is the best all-around window material because it offers an excellent balance of energy efficiency, durability, low maintenance, customization, and value. Unlike wood, vinyl does not need to be painted or stained, and it resists common moisture-related issues such as warping and rot. Window Nation’s custom vinyl windows are made with high-quality virgin vinyl and can include features such as Low-E glass, Argon gas, and double- or triple-pane glass for year-round comfort.
How do you measure replacement windows for a proper fit?

Professional window measurement involves measuring the width, height, depth, squareness, and condition of each window opening. We will explain how measurements are verified before the windows are ordered to help prevent gaps, air leaks, water intrusion, and operating problems.
How much does window replacement cost?

While the cost of replacement windows varies by size, style, glass options, and energy features, our team can review your project details and share clear pricing so you can choose what fits your budget.
How will you protect my home during window installation?

A Window Nation installer will explain how floors, furniture, landscaping, siding, and exterior surfaces will be protected throughout the project. Ask about dust control, removal of old windows, debris disposal, daily cleanup, and the final inspection process.
Should I use a full-frame or an insert replacement?

One of the biggest decisions in a window replacement project is whether to use a full-frame replacement or an insert replacement. A full-frame window replacement removes the existing window down to the opening, allowing your installer to inspect and repair the surrounding structure and update the window frame for a more complete refresh. We recommend this option as it is often ideal when you’re dealing with older frames, drafts, or visible wear.
Which window features improve energy efficiency?

Energy-efficient replacement windows may include double-pane or triple-pane glass, Low-E coatings, insulated frames, warm-edge spacers, and Argon or Krypton gas between the panes. Ask the contractor to explain which features are appropriate for your climate, home, and energy-saving goals rather than simply recommending the most expensive option.
Who will install my replacement windows?

At Window Nation your windows will be installed by company employees, not subcontractors. Our installers have experience with a variety of window types, understand local building requirements, and follow the manufacturer’s installation specifications.