There is a reason your sills rotted. Check the tops of each window to see if there is a window flashing over the top casing. Such a flashing is an aluminum cover folded into an L shape ...

There is a reason your sills rotted. Check the tops of each window to see if there is a window flashing over the top casing. Such a flashing is an aluminum cover folded into an L shape ...

It’s all about getting the window sill back to tip-top shape. “That's number one for sure,” Matt adds. “Fix any imperfections to make it look nice and brand new.” Depending on your ...