Unfortunately from my end there is no way to tell from here as water intrusion can be and is a very tricky thing. It may be coming in from there or I would also be concerned that it appears there is not a drip cap and the siding does not look the in the greatest condition above it. You would probably be best off looking for a reputable handyman or small GC who does siding and windows to take a look at it.

We have also been doing extensive research thanks in large part to this site and some of the insightful posters. We saw all the usual suspects including andersen and pella. We were shown the Okna 600 and liked the window more than andersen believe it or not. We have a total of 10 double hungs with no grids. We are doing a ” basic replacement ” and we were quoted $7600 for all 10 windows including installation ( Okna 600 deluxe ). We actually signed a contract last week and think we were given a competitive price although we didnt base our decision soley on price. We should have our windows installed in late February based on all the supplier issues everyone is facing. We are also having a front door installed by the same company and we chose a fiberglass entry door by HMI Doors based on their recommendation. Its a craftsman style door with no side lites and we are paying $3400 including installation. Needless to say, we are excited and can’t wait for our new windows and door.

Fred, If you have figured out what you want, Amazon is good. If not there, try Blaine Window as well.

Try these guys, you may need to call but they are the discontinued window part pros.