I want to replace my old aluminum frame sliding glass door to my back yard. I like the look of french doors, but I don't know if they are as energy efficient as sliding glass doors. I want something that is not cold in the winter (like the current one) and has a little less sound transmission. Any other differences? Any input is appreciated. Thanks.

This is the question: Will I have to buy a new exterior door and storm door to correct the problem? I recently bought a new exterior steel door and new storm door--trying to weatherproof my nome---I had it installed-----now the problems I never had with the old door: when it rains it flows, not drips, flows in between the storm door and the new steel door, I can't open the door, rain will come in the house, the vinyl edging on the outside, is broken and pulled completely away from the door which the gaps are anywhere from 1/4 in to 1 inch, I have to lift the steel door to lock my door, sill is bowed and I can see a gap between house and sill, can see daylight between frame and new steel door and this was what I wanted to get away from!!! An all around bad job in my opinion!!! I can't do the work myself but I know bad work when I see it. Can't get anyone to remove doors and reset. One guy said I may have to reside my house to get it fixed!!!!! What are my options, please, before winter. Can't trust local people with the answers, I've tried. This was not cheap to replace to say the least---hate to think I have to pay double to correct problem!!!