How can I seal a below-grade window permanently?
Jeff, you didn't say what material the windows were in. poured concrete foundation wall, framed wall?? Is there siding around the windows? A concrete wall could be filled with bricks and mortar. If it is a framed wall, build a framed box, shiething, then some flashing, lots of silicon caulk and match the siding. A picture would be a great help on this one.