I have three square recessed lights in my breezeway that I would like to replace with round ones if possible. The breezeway ceiling is tongue and groove boards and I do not hve access to the area above the holes.The sizes of the hole for two of the lights is 10" by 10" and the other is 11" x 11". How do I go about patching these holes to put in round recessed lights? I do not want to replace them with new square recessed lights since inside my house I have all round recessed lights. Sorry if this is the wrong forum, but I felt it was more appropriate in the electrical forum.