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Replacement 101

Your guide to window and patio door replacement

When it comes to replacing your windows and patio doors, it's common to become overwhelmed by unanswered questions and the number of decisions that need to be made. Here, we break things down, so you can move confidently through the entire process.

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When should I replace my windows or patio doors?

Wear, tear, or failure to function

One of the most clear signs it's time for replacement is visible damage like cracked or rotting frames, peeling paint, or warped sashes. You also shouldn't have to struggle to open or close your windows. If you do, new windows could make all the difference.

Moisture issues

Excess moisture can lead to mold, mildew, and warping. While some condensation is normal, if you see water between glass panes, leaking, water stains, or wood rot, it may be time for replacement.

Drafts, chills, or high energy costs

If you're feeling a draft, need a blanket to sit by your windows, or your HVAC is working overtime, it could mean the seals around your windows are failing. An energy efficient replacement could keep you more comfortable while lowering energy bills.

Noise pollution

While many people on busy streets and neighborhoods have come to accept outdoor noise, the right replacement window could insulate your home from sound pollution.

Outdated style

This may be a matter of personal preference, but replacing outdated or mismatched windows could enhance your home's curb appeal and resale value.

UV damage

Outdated windows may allow damaging sun rays in, which can fade carpets, furniture, and even photos and art. Investing in new windows could protect against future damage.

New Build vs. Replacement

What are replacement windows?

Replacement windows differ from those installed in a new construction or complete remodel. New build windows are installed into spaces without a finished exterior (i.e., brick, stucco, siding). Replacement windows can be installed without exposing the unfinished wall surface. Depending on the condition of your existing frame or desired transformation, there are two ways to handle replacement installation.

A man installing an Infinity from Marvin window.
Insert replacement

If your current frames are in good condition and you want to maintain current window size and style, this may be the right option. The new windows are inserted directly into your existing frame for more efficient, less disruptive installation, which can minimize labor costs.

People installing Infinity from Marvin windows.
Full-frame replacement

This approach is used if you want to completely transform your home with a new style or larger window. Your consultant may also recommend this method if water or structural damage are a concern. While full-frame replacement has less impact on your exteriors than a new build, it does require removal and replacement of trim.

Choose the right material

Which options will address my needs?

Why Ultrex Fiberglass
Climate extremes

Innovative materials like Ultrex® fiberglass stand up to climates ranging from the extreme dry heat of desert areas to the harsh winters of the upper midwest.

Lasting investment

Because fiberglass is engineered to last a lifetime, windows built with this cutting-edge material are typically backed by a warranty and deliver better resale value.

Expansive views

An unexpected benefit of the right material is that your windows can be built with slimmer profiles. You get more expansive views even when replacing windows of the exact same size.

Minimal maintenance

Consider the quality of the material finish. Fiberglass materials with thicker finishes offer a smoother look and resist dents, chips, scratches, chalking, and fading.

A close up of a window letting light into the room with a chair and a pair of glasses on an end table.
Fibrex® is a registered trademark of Andersen Corporation.

Material innovation

The enduring strength of Ultrex fiberglass

8x

Ultrex is 8x stronger than vinyl

Built to last, Ultrex fiberglass delivers more expansive views and performance that stands up to the test of time.

3x

Ultrex is 3x stronger than Fibrex®

Made with 100% fiberglass, Ultrex is even stronger than the wood/vinyl composite used in other replacement windows.

The after results from an Infinity from Marvin window installation.

Get design inspiration

From ordinary to extraordinary

Explore the Gallery
An exterior view of an infinity window on a modern farmhouse.

Casement and Picture Windows Exterior color: Bronze

The exterior of a modern farmhouse with Infinity windows.

Casement and Picture Windows Exterior color: Bronze

These windows are great! They have changed not only the look inside my house, they also help with temperature control and noise reduction."

Tracy D., Montana

Homeowner

Connect with a consultant

Your dedicated replacement expert

With expertise specific to your area, your independent consultant will help you navigate local climates, codes, and regulations while walking you through every step of your window or patio door replacement. Find a consultant to get started.

A consultation for Infinity from Marvin windows.
Assess your current windows and doors

Your consultant will evaluate your current windows for moisture issues, water damage, rot, or structural concerns. They'll also note any energy efficiency or functional issues like sticking or failure to stay open.

Decide on an installation method

Depending on the condition of your existing windows and your dream design, they will determine if it's a complete redesign with a full-frame replacement or a simpler one-for-one insert replacement.

Select the right options

From window style to performance glass to hardware finishes, your consultant will walk you through all the options available to transform the way your windows look and operate.

Understand replacement costs

There is no one size fits all when it comes to window replacement. Your consultant will help you price out your replacement and understand how to budget for your project.

Take measurements

A technician will visit your home to measure openings, accounting for variances or imperfections. Measurements are sent to the factory where your windows and patio doors will be built to order.

Plan an installation timeline

Depending on the size and scope of your project, installation could take a few hours to days. Your consultant will give you a detailed timing estimate when you're ready to order your windows.

Customize Your Design

A lifetime of beauty, just as you imagine it

All WindowsAll Doors
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Infinity from Marvin window styles.
Window styles and shapes

Complement the beauty of your home or completely reimagine your design with a everything from awning windows for maximum airflow in tight spaces to special shapes that lend architectural interest.

View All Windows

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Infinity from Marvin door styles.
Patio door styles

Replace your existing door with an updated style or expand your indoor/outdoor spaces with transformational options like bi-fold and swinging french doors.


View All Doors

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Infinity window and doors exterior colors.
Window design options

Endless shape, style, hardware, and finish combinations are built to order. So, your replacement windows look and function just the way you want.

Learn More

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An Infinity windows design consultant points to windows during an appointment with a couple inside their home.
What happens during the replacement window installation process

Upgrading your windows enhances the look and comfort of your home, but the replacement window installation process can seem overwhelming.

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Diagram of how Low E glazing works during summer.
Benefits of using energy efficient windows

In today's environmentally conscious world, energy efficiency is a top priority for homeowners.

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Plan your install

Expert consultation from start to finish

Understand replacement costs

There is no one size fits all when it comes to window replacement. There are a number of decisions you'll make when designing your windows — and each one will likely impact your final costs. Your consultant will help you price out your replacement and understand how to budget for your project.

Hassle-free permits

With local replacement experience, your consultant will identify and pull any permits you need and ensure your new windows are installed to code.

Prep your home

You can help speed installation along by prepping the area around the windows. Remove curtains, blinds, and any other window treatment as well as furniture that may get in the way.

Window installation

Your installation team will arrive at their scheduled time and start by removing the old windows and cleaning the openings. They will then insert the new windows, level, and secure with screws or nails before sealing any gaps. View installation details.

Finishing touches and debris disposal

With the window in place, the installer will install trim, sills, moldings, and jambs for a polished look. After installation is complete, your local crew will clean up any mess and haul away your old windows.

Enjoy for a lifetime

Infinity from Marvin windows and patio doors are backed by an incredible warranty, ensuring you enjoy your home long after installation day. View warranty details.

After this whole entire adventure of buying this door, I’m so glad I bought it. I’m glad I’m part of the [Infinity] family, because that’s how they treated you. From start to finish. I’m so glad I purchased Infinity from Marvin."

Michael T.

Ohio Homeowner

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