Hello DIYers,
I'm really interested in fiberglass windows but the whole window universe reminds me of buying a mattress - smarmy sales folks telling half truths at obscene markups. And I'm a sales guy!

I've read the Marvin sites, talked to different sales folks and still don't understand the difference between their Integrity and Infinity. It just seems like Marvin is marketing the same product under two different distributor networks. Please correct me if I'm wrong.

As far as pricing - I'm looking at 8 40"x60" windows (there about), all fiberglass/ultrex, with grilles (two vertical bars) in the upper section only. Some online forums I've seen after a "Marvin Infinity (or Integrity) cost" are saying $500-800/window installed. One quote on the Infinity's we received as $1400+ per window. What's a fair estimate or is there somewhere I can buy and install myself? I've done my own replacement installs before.

Thank you all for any info and help in advance.

 

I believe that you can buy directly from Marvin but there are no refunds or exchanges. If you buy it, you own it. With any of those companies, they use subcontractors for the installs. They aren't employees. I never liked that idea.

 

Well, after a few calls to Marvin I got a knowledgeable, friendly and helpful person. So for anyone else searching for the difference between Integrity and Infinity, here you go.

Infinity - only sold through limited retailers and can only be sold at an installed price. You cannot just buy the window. The window sash is beefier and meant to be more architectural and the step down from the aluminum clad. Sold only as a replacement window.

Integrity - can be bought direct at a dealer. Meant to be a competitor to vinyl. Sold as full frame or replacement.

Both - they are made from the same material and can be specced with nearly the same options.

Here's a diagram showing the two where you can see the sash differences.

 

So, order what you want through the correct source. Do your own installation if you can.