Unfortunately the good vinyl windows are sold through dealers which isnt a bad thing. You cant go directly to bmw to buy a car, you need to go through a dealer.

the best vinylwindows are Okna, Soft Lite, Sunrise, and Kensington.

Manufacturers that will sell directly to homeowners are going to be very, very limited. Most will sell either via distribution or a dealer network. It sounds like the distribution channel might be more along the lines of what you are looking for, although some dealers/installation companies will sell DIY as well.

Where are you located? That will dictate what may be available.

Thanks! I'm located about an hour west of Chicago.

What are your intentions as far as installing? DIY, or are you planning to source the windows and hire someone to install?

As far as the windows available, in the Chicago market you will have every major high end vinyl unit available (Okna, Softlite, Sunrise, etc), however it will be a matter of finding a source that will sell direct as you have already experienced. Richards Building supply (if there is one near you) carries some softlite products. We have Polaris distribution up 94 here in Milwaukee as well.

Thanks! I plan on installing them myself.

Soft-Lite Pro should be available through an ABC supply.

Marvin. However I got their fiberglass windows quite a few years ago. Solid, heavy and love them. Prefer them to vinyl as they are solid and heavier.

"What are the best vinyl window manufacturers"

Again, VINYL...................

Forget all this Mumbo jumbo about performance this, warranty that. Put the window on a scale. Heavy = better. Period. That's how you know it's gud

That's why I order all my windows with tempered glass