I had a problem this spring where we had water enter our home through the foundation. After pulling down some drywall and insulation, I discovered that the steel frame for the basement window was rusting and had actually had become damaged due to moisture freezing problems (The bottom which is above grade is buckling on the inside and damage to the foundation wall has occurred here as well).
The foundation is a poured foundation. How hard is it to remove the steel frame and replace with a vinyl window/frame?
Here's what the damage looks like. Any help or thoughts would be appreciated.
All you need is a sawzall or a hacksaw and an hour of time to remove what you have. You'll also need to repair the concrete at the base of the window.
Depending on the opening you have, you might need to install a wood frame or the window might fit into the concrete RO.
Basement windows are pretty easy and somewhat forgiving, as it's not above grade and the visual is hidden somewhat. If you do more then one, the visual improves with practice.