Several factors determine cost. The two primary factors are the project size and the installation’s difficulty. 

The size of the project: Both the size and number of windows will determine the overall cost of your window film installation. 

The difficulty of the installation: The height of the windows from the ground and the need for ladders or lifts are essential considerations. The window and frame’s condition, whether new or old, also plays a role. Removing old window film can add to the complexity and cost of the installation. Additionally, if any of the windows are old, oddly shaped, or have small French panels, they will require special attention and more time for installation. These factors can affect the overall cost of the project.