Aluminum Window Trim: Installation, Replacement, and Wrapping

A gray house on a green lawn with white window trim is pictured.

Are you considering updating your window trim but need help figuring out how to get started?

If so, you’ve come to the perfect place. In this article, we’ll cover everything you need to know about aluminum window trim, including what it is, the different colors available and how to install it.

What Is an Aluminum Window Trim?

Aluminum window trim serves both a practical and aesthetic purpose in home design.

It frames windows to provide a clean, finished look while protecting the window’s edges from the elements. It is known for its durability, corrosion resistance and ease of maintenance, making it a preferred choice for homeowners and exterior designers.

Unlike traditional window trim materials, aluminum window trim offers a modern appeal with sleek lines and a smooth finish. It’s ideal for any design aesthetic or architectural style because it can enhance your design without overwhelming it.

Traditional Window Trim vs. Aluminum Window Trim Wrapping

Traditional window trim uses separate pieces to frame the window and requires periodic maintenance to ensure it lasts as long as possible. Sometimes, the trim is vulnerable to the elements, no matter how careful you are. To protect and elongate its life, you should opt for window trim wrapping.


Window trim wrapping involves covering the window trim and frame with a protective material like aluminum. Working with aluminum window trim gives you a much more durable and long-lasting solution than traditional window trim.

Alsco®’s Duratex™ Window Trim Solution

Alsco’s aluminum trim coil, Duratex, was created to match leading window manufacturers and is engineered to provide long-lasting protection with a low-maintenance finish.

Not only does its durable, reliable finish help maintain the exterior appearance of the house, but it also helps the home withstand even the harshest weather conditions. Plus, the finish’s superior scratch and mar resistance keep your home’s exterior looking brand new.


Colors Available for Window Trim

Choosing the right color for your aluminum window trim wrap can significantly impact your home’s overall look. Duratex matches leading window manufacturers like Andersen, Pella and Marvin. ,

This variety allows you to select trim that complements or contrasts with your home’s siding for a cohesive and striking exterior design aesthetic.


A bronze-colored rectangle is pictured.

Beyond the basic color choice, using different colors as accents can further personalize and enhance your home’s design. For instance, a darker trim color like Bronze can frame windows with a bold outline to make them stand out against lighter siding.

A beige-colored rectangle is pictured.

On the other end of the spectrum, softer tones like Almond or Tan complement each other for a more subtle and elegant appearance.

How to Install Aluminum Window Trim

A gray house with windows and white window trim

Installing aluminum window trim is a straightforward process that can dramatically improve your home’s exterior look and the durability of your windows.

Here’s a step-by-step guide to installing aluminum window trim:

Step 1: Gather All Tools and Supplies

Begin by gathering all the tools and materials you’ll need for the installation, including a tape measure, tin snips, a hammer, nails and sealant. Ensuring you have everything before you begin will make the installation process much more efficient.

Step 2: Measure Your Windows

Accuracy is key when measuring your windows. Measure each window’s height and width precisely to determine how much window trim you need.

This step ensures the trim fits perfectly to enhance the window’s appearance and protective qualities.

Step 3: Purchase Your Alsco Duratex Trim Coil

With your measurements in hand, visit our website or contact us — we will help you find a distributor in your area that carries the perfect aluminum window trim for your project. With our variety of colors and additional home exterior products, you’ll be sure to find the ideal match for your home’s design.

Step 4: Prep the Window for Installation

Clean the window frame, exposed wood and surrounding area to remove any debris that could complicate the installation. A clean surface ensures the new trim will adhere properly and provide a seamless finish.

Step 5: Cut the Aluminum Trim to Size

Using the measurements taken earlier, cut the aluminum trim to the required lengths using tin snips. Always double-check your measurements before cutting to ensure accuracy. Once this is finished, make sure to then bend the coil into shape on the brake press.

Step 6: Test Fit the Trim

Before applying any sealant, place the cut trim around the window to test the fit. This step will allow you time to make necessary adjustments before you begin the final installation.

Step 7: Wrap the Aluminum Trim

Once you’ve confirmed that everything is the right fit, it’s time to carefully wrap the aluminum trim around the existing frame.

Step 8: Finishing Touches

Inspect the new aluminum window trim for any gaps or uneven edges. Once you’ve done all the finishing touches, you’re good to go!

Update Your Window Trim With Alsco

Elevate your home’s aesthetic and protect it from the elements with Alsco’s aluminum trim coil. Whether you’re installing new trim or are on the hunt for an aluminum trim replacement, we offer high-quality, durable window trim solutions that can enhance and protect your home at the same time.

Contact us today to get started.