: Expect to pay $100 to $200 . This process removes moisture between panes but does not fully restore the window's original thermal resistance.

The phrase “window seal repair cost” wasn’t something Leo ever thought he’d type into a search bar. But at 2:17 AM, wrapped in a quilt on his couch, he watched a thin, curling fog bloom between the panes of his bedroom window. It looked like a ghost was breathing inside the glass.

If left unaddressed, a faulty window seal can lead to a range of problems, including:

This guide breaks down the costs of repairing window seals, helping you decide whether to tackle it yourself or hire a professional.

“It’s $480 now,” the dispatcher said. “Because we have to remove the entire frame to clean out the shattered glass from your DIY attempt.”