Arch windows costs can be higher since they often come as a custom window installation with a specialty style. A normal sized arched window replacement will cost between $325 to $875 per window.

Are curved windows expensive?

Basic level arched windows can cost anywhere between $200 and $350 depending on size and window brand. ... This price refers to just the window. To add installation, the price goes up $125, on average. If there is need for frame replacement, including the sills, jambs, and stops, it could jump as much as $250.

How do you modernize an arched window?