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.

Im assuming you are in the nyc area? Tri state window factory make an ok window i guess but its definitely not up there with the elite windows such as okna, soft lite, or sunrise. Okna Windows are definitely a better window and is on a differenet level than Tri State Windows which is only a mid range type window. Being that the pricing is close, i would hands down choose the okna. The pricing seems good as well. Okna make a very well designed window with some great engineering. A very good looking window. I also agree with Todd, if you want triple pane, argon is a much more economical choice opposed to krypton.

The Okna 600 is a better window and I agree, its nicer looking than castle. I have nothing against castle windows, their window is ok but just not up there with okna or some of the other higher end windows. Castle can be pushy with their sales tactics and tend to put too much emphasis on their warranty. A good window and a good installer is the best warranty you could get in my opinion. Most windows are a limited lifetime warranty which is good and even better if its transferrable. A labor warranty of 2 years or more is fine. If the installer is good, a 5 minute labor warranty is plenty.

Depending on all of the details it could be unreasonbly low, but certainly not high even in the most basic form. If that is offered by an established and reputable company, I'd jump on that before the price goes up again. More often than not I see that window (and other top performers) over $1k per window these days for perspective.