Discussion Board Forum for Vinyl Windows

So I went to check out the NFRC website under under Okna 800 they have about 30 variations listed by a CPD number. What's that?

Well that price was for the 500 series. Another 80 for 800. Not sure on laminated glass.

$170 was based on a 10 window purchase at $440 per Okna 500, plus $30 for grids and $100 overall disposal fee. It does not include interior trim or repairing the sill or jam, another $75 if that is needed. Also, let me through a comparison with Gorrell into the mix. They seem reputable and solid win...

Any thoughts on real differences between these?

What's a good price to install per window, including Metal Finish removal and exterior trim capping-whatever those are? I was told about $170 per window.

And what's the real benefit of argon vs krypton gas?

I'm also in the DC region and considering the Okna. Who gave you that quote? I got one from Windows on Washington for $3520 or 440 ea for the Okna 500 alone, uninstalled, for 8 windows. What's the difference? Anyone heard of Enviro-Star 800 windows? Or is that the same? How is sound protection - I'm...