I did this cheap & easy with raw netting & velcro, and I've been very pleased with it. It works fine if you don't go through the doors much. Cost well under $100. 1. I bought raw mosquito netting (from mosquitocurtains.com). 2. Cut it to fit across both doors, allowing extra width to fold edges under for neat appearance, & of course some overlap onto the door frame where the velcro would be. 3. Attached 1" velcro patches, 3 across the top and about 4 down each side. (I stapled one side of the velcro onto the curtains with an ordinary stapler - 2 staples on each. Super quick. Nailed their mates to the door frame (eek!) with 3 small nails. Doorframe, curtains & velcro are all white, and it looks surprisingly neat and nice. (I could even white-out the nail heads!) Still, in winter I'll probably take it down, leaving just a few inconspicuous little velcro patches.

I am a grandma and tried to install myself since the $ was the same to buy x 2. My brother helped and we got it up. I have had to replace the closer as it stuck and I had to take it off to close the door. The lock never came out on the door either. My closer (which I was soo excited I could put on myself) now is also bent when I was attempting to take the dam lock off and the top lil thing that goes in and out when you shut the door was locking. what?? I had to go around the house and keep forcing that thing down w a screwdriver. I thought I may attempt DIY's but I told a friend I just CANNOT complete this storm door nightmare.. I have a nail where I am using a twistie to keep it closed in the meantime. I guess I also need the Lock Replacement. argh

Provia makes the best fiberglass and steel doors available. Andersen is not even close in quality. Go with Provia if you want a door that is air tight and will never need to be replaced again.

A series doors - the frames are fiberglass-clad wood and the door panels are LVL wood coated, and, it would appear from the literature, not fiberglass-clad, but directly finished with Flexacron. The A series windows are Fibrex (composite) frames with a wood-interior and fiberglass sash exteriors with a wood interior. The picture windows are fiberglass for both frame and sash. I would hesitate to call them clad, as it they are not full-dimensional wood wrapped with a form-fitting fiberglass "skin" like aluminum-clad windows are. The exterior fiberglass/fibrex components are quite distinct from the wood structural/aesthetic components and no part of the wood sits outside of the exterior sheathing of the wall. The E-series has more customization - you can specify the stile and rail sizes to get either a more contemporary or traditional appearance. You can have paneling added. There are many more colors available. You can get a flush-sill, venting sidelights and shades between the glass. A series does not offer these things. The A-series definitely has a more "traditional" appearance.