Change size of the basement windows
I have three basement windows like the ones in the pictures. They are all 30" wide and 14" high. As you can see, they are all above the ground (80" & 130" respectively). With such small windows, the basement doesn't get good ventilation and natural light. My question is whether it is easy to cut down part of the wall under the windows and replace them with the bigger ones like 30" by 48". Do I need a permit and how much will it cost do each one. My basement is finished.