While clearing through the jungle of back garden I found what I think is the original cast iron roof lights from the rear of our house, one window still remains in the roof but we've found two patched up windows in the loft space, we were going to reinstate them when we're re-roofing the house next month and I'm wondering how difficult it would be to reinstate the original roof windows that we found in the garden. If it would be possible who or what would be the best way of getting them reglazed and the cast iron well cleaned up? I imagine they've sat in the overgrowth for well over 50 years.