Spoke with Lajan at their office and learned what they carried and why, spent quite a bit of time going through all the information on doors and storm doors, and after a long exchange of emails with Lajan, who has the patience of Job, it was decided to split the job into two parts i.e., replace both storm doors and after interior work is complete replacing the back door. John came out and confirmed the frames would accept standard doors so that the insulated glass DYC doors could be used. And he was a veritiable encyclopedia, providing detailed insight into standards, construction, framing, door type, hardware, thresholds, you name it. Learned more in that one visit than in week upon week of online research, these folks absolutely know their stuff! With that knowledge imparted it was back online with a greater understanding and then into another email exchange that got us to a workable quote. Printed, signed, and faxed back, we set up a date for the work. John was on time and set to work quickly. Got the doors installed perfectly with the added ability to open them more than ninety degrees by a clever placement of the opener anchoring bracked on the doorframe. When I say the door were installed perfectly it's not hyperbole, they open and close correctly, latch with no play or need of assistance, square and plumb, dead centered, and properly attached, very impressive. Exceptionally professional in every aspect. All this over a couple of storm doors? Yep, if you want it done right the first time.