How to Install an Arched Window Like a Pro

Installing an arched window can be a complex process, but with the right tools and knowledge, you can achieve professional-looking results.

Mason Jul 25, 2026
How To Install Arched Window Shades in Minutes
How To Install Arched Window Shades in Minutes

Installing an arched window can be a complex process, but with the right tools and knowledge, you can achieve professional-looking results.

How To Install Arched Window Shades in Minutes
How To Install Arched Window Shades in Minutes

Before starting the installation, it's essential to prepare the site and gather all necessary materials, including the arched window, a saw, a drill, a level, and a measuring tape.

a man holding up a large white ribbon in front of a window
a man holding up a large white ribbon in front of a window

Choosing the Right Arched Window

The first step in installing an arched window is to select the correct type and size of the window that suits your needs.

how to make arched window trim
how to make arched window trim

Consider factors such as the window's shape, size, and material to ensure it fits your home's architecture and style.

Selecting the Arched Window Style

a woman taking a photo with her cell phone
a woman taking a photo with her cell phone

Arched windows come in various styles, including elliptical, circular, and pointed arches.

Each style has its unique characteristics, and you should choose the one that complements your home's design and provides the desired functionality.

Measuring and Marking the Window Opening

a man standing in front of a window with the words learn how to trim this arched window step - by - step
a man standing in front of a window with the words learn how to trim this arched window step - by - step

Once you have selected the arched window, measure and mark the window opening to ensure accurate installation.

Use a measuring tape and a pencil to mark the location of the window's center and edges, taking into account any obstructions or irregularities in the wall.

Preparing the Site and Materials

Trim Out an Arched Window
Trim Out an Arched Window

Before installing the arched window, prepare the site by removing any old window or debris and cleaning the area around the window opening.

Next, gather all necessary materials, including the arched window, a saw, a drill, a level, and a measuring tape, to ensure you have everything you need for the installation process.

an arched window is taped to the side of a building
an arched window is taped to the side of a building
Windows
Windows
How To Install Arched Window Shades in Minutes
How To Install Arched Window Shades in Minutes
arched window part-7 modifying and painting
arched window part-7 modifying and painting
How To Do Arched Window Treatments
How To Do Arched Window Treatments
DIY Arched Window using Foam Board
DIY Arched Window using Foam Board
an open window with the blinds closed and hand pointing at something in front of it
an open window with the blinds closed and hand pointing at something in front of it
How to Decorate Arched Windows: A Guide to Curtains & Shades
How to Decorate Arched Windows: A Guide to Curtains & Shades
Bendable Solutions Casing Installation
Bendable Solutions Casing Installation

Cutting the Arched Window Frame

Using a saw, carefully cut the arched window frame to fit the marked window opening, taking into account any irregularities or obstructions.

Use a drill to create holes for the screws and a level to ensure the frame is properly aligned and level.

Installing the Arched Window Sash

Once the frame is cut and prepared, install the arched window sash, ensuring it fits snugly into the frame and is properly secured.

Use a drill to drive screws through the sash and into the frame, making sure they are securely tightened.

With the arched window installed, you can now enjoy the benefits of natural light and a unique architectural feature that enhances your home's style and functionality.

Remember to inspect the installation regularly to ensure the window remains secure and functional over time.

Visual guide

How To Install Arched Window Shades in Minutes
How To Install Arched Window Shades in Minutes
a man holding up a large white ribbon in front of a window
a man holding up a large white ribbon in front of a window
how to make arched window trim
how to make arched window trim
a woman taking a photo with her cell phone
a woman taking a photo with her cell phone
a man standing in front of a window with the words learn how to trim this arched window step - by - step
a man standing in front of a window with the words learn how to trim this arched window step - by - step
Trim Out an Arched Window
Trim Out an Arched Window
an arched window is taped to the side of a building
an arched window is taped to the side of a building
Windows
Windows

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