How To Do Stucco Trim Around Windows

How To Do Stucco Trim Around Windows: The Ultimate Guide

Stucco is a popular siding material that is utilized on many homes. A smooth or textured finish can be achieved with stucco, both of which can be painted to complement the exterior of your home. While stucco is an excellent choice for siding, it can also be utilized as a trim around windows.

Stucco trim around windows can enhance your home’s curb appeal. It is a wonderful addition that completes a more polished look to any exterior. To help you through this project, we have put together a complete step-by-step guide on how to do stucco trim around windows.

What is Stucco?

Stucco is a traditional coating that resembles plaster and can be found on homes throughout the United States. It is made out of sand, cement, water, and lime or other additives. Stucco can also be created using pre-mixed bags of stucco that is readily available on the market.

Stucco is highly durable and can withstand extreme temperatures and even natural disasters. It is also energy efficient since it creates an insulating layer that reduces the heat transfer into and outside of your home.

How To Do Stucco Trim Around Windows

Here are the six steps to installing stucco trim around windows:

1. Preparation:

To start, you will need to prepare your work area. Begin by wiping clean the window trim, then create a suitable work surface. You may use canvas or plastic on the floors and lay down tape and paper to protect the window glass and adjacent walls.

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2. Measure and cut:

Measure out the length and height of the window, then cut out the metal lath to suit the measurement. Use tin snips to cut the metal lath into smaller pieces that can easily be maneuvered around the window.

3. Attach the metal lath:

Using screws and washers, attach the metal lath to the windowsill and surrounding trim. Please ensure to install it flush against the window frame to establish a smooth stucco finish.

4. Apply stucco:

Prepare the stucco mix by following the manufacturer’s instructions. Once prepared, use a hawk and trowel to apply the stucco to the metal lath. Ensure that the stucco mixture is smooth and evenly applied to the metal wire lath.

5. Level and smooth:

Use a screed board to level the stucco, and then smooth it with a finishing trowel. Ensure that the stucco mixture is evenly distributed to the metal wire lath under the window trim.

6. Finish:

Once the stucco is dry, remove the tape and paper from the windows. Caulk the stucco edges and finish with a coat of paint.


Q. Can stucco be applied on existing siding?
A. Yes, stucco can be applied over most types of existing siding. It’s important to ensure that the existing siding is clean, dry, and free of any debris.

Q. Do I need to use a metal lath for stucco trim around windows?
A. Yes, it’s essential to utilize a metal lath when installing stucco trim around windows. This will ensure that the stucco remains attached to the window and doesn’t crack or break.

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Q. What is the stucco curing time?
A. Stucco curing time will depend on various factors, such as the weather, humidity, and thickness of the stucco. Typically, it takes about 28 days for stucco to fully cure.

Q. How long does stucco last?
A. Stucco is a durable and long-lasting material that can last for up to 50 years with proper maintenance.


Stucco trim around windows is a great way to complement your home’s exterior and create a polished look. This guide has provided you with all the necessary steps required to install stucco trim around your windows. With proper maintenance, stucco is a long-lasting material that can withstand the test of time and enhance the look of your home for years to come.

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