Has your summer sizzled a little too much because of a broken AC? Have you been meaning to patch up your roof while the weather's nice, but don't know where to start? Don't sweat it! Alvin and Lawrence Ubell, our Gurus of How-To, return just in time to chat with listeners about summertime home repairs and projects!

Jonathan Capehart guest hosted this segment of "The Leonard Lopate Show."