the 400 is Okna's entry line. Window World (at least in my area uses other crap manufacturers) is someone I would not use in any model.

I‘d price out some of Okna’s higher lines.

Can they get you the Okna 500?

The Okna is better by a mile. Dont know too many pro’s who would ever recommend window world. What was the window world pricing?

All double hungs? any grids ?

What state are you in?

"Many" do not like the WW base window. They just like a low price and delude themselves into believing that a low cost window and low cost labor somehow = a good deal.

The Okna is much, much better, however as mentioned above, I'd strongly recommend stepping up at least one model to the Insultec/500 or higher.

Window Genius - I am in VA. No grids. Low E & Argon for $7554 for Okna & $7603 for WW. 11 windows.

I have 1977 windows - single pane. Hold out for Okna 500? Or upgrade now. And, yes, double hung/half screen.

Main advantages of 500 series Okna vs 400 series?

The okna 400 and window world were basically the same priice: $7600 fpr 11 basic double hungs? Thats crazy cheap for the okna 400 which is their budget series.

Great News! Called the Okna installer. The Okna quote is actually for the 500 series.. not the 400 series.

Even more reason to jump on the Okna window. Miles ahead quality wise of anything Window World.

Yep. Slam dunk.