I'd like to install a small (5000btu) window-unit air conditioner through a cinder block wall that is finished with stucco inside and out. Is this a do-it-yourself kind of job or should I hire someone to cut the hole? Will the hole require framing or support? How to affect a good weather seal - does it require flashing or will caulking be enough?
I am reasonably skilled at framing in wood, but this is my first work with a cinder block wall.
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