Thanks, windowsonwashington. And to the novice, I've done some further digging and I now feel dumb about the amount I was about to pay for windows. I did not realize the mark-up until I priced the Ultimate and Integrity product without the installation (Do this first if you can before you invite anyone into your house. I did not). On average, I was being charged $1700 per window for window and install of the Marvins (Integrity, Infinity and Clad) and about $1,050 per Inline window installed. This seems a lot given that only a few were full frame replacement. Worse, only one of the six quote did a decent job explaining the installation process. A word of advise to folks window shopping, be discipline, methodical, analytical and do not treat the process as something to get done immediately (though I understand why you would feel this way). If you do, you likely will be taken advantage of. Do yourself a favor and give yourself the time to work through the process. Also, there's lot of misinformation out there about the superiority and inferiority of one product vis a vis another. Caveat emptor certainly applies for a purchase this costly. Another thing, read the warranty before you sign. By doing this, I was able to rule out the Infinity product, much as I liked the aesthetic of the casement. I'm sure there's more to come.

corten, what are your priorities in choosing a window? I do like the Integrity option that WoW mentioned above, however I'd qualify that recommendation by saying that is IF you value a wood interior over high performance. Most wood and fiberglass windows (with the exception of some Canadian brands) are a bit lacking in performance, particularly air leakage. If the appearance of vinyl is acceptable to you, a premium vinyl product will likely offer the best thermal and structural performance that you can find, and do so at a lower price point comparatively. Below is an actual testimonial from a client of ours, I've only obscured the brand of the window that she chose so that this does not read like a commercial: "In replacing my windows, I first tried Marvin Infinity fiberglass double hung windows in one room. I hated them from the first night because the air infiltration was very high, the top pane would drop slightly letting more cold air in, and the fiberglass conducted the outside cold. I replaced the Marvins within a few months with the ****single hung windows, mainly because of the low air infiltration ratings, and because it was the only high quality single hung in the area with the .01% air infiltration rating. After living with the **** over the winter, I was pleased enough that I replaced the rest of the windows with **** single hung. I have been very pleased. Customer Service after installation also has been very good" Again, the Integrity and to some extent Infinity are good windows, just make sure that they fit your goals for the project, which to some degree is form over function... Just some food for thought.

Our window shopping saga continues.... We are now considering the Marvin Infinity line for our large sliding doors and kitchen replacement window. Does anyone have Marvin Infinity installed in their home? If so, particularly in the Southwest, how has it held up? Are the frames durable? Is the slider still working correctly? Thanks for any input!

Since we live in the Denver area we were looking at fiberglass because it is supposedly hail proof (we are tired of disrupting our lives for home/auto hail damage). We have Milgard vinyl in our current home (original builder grade from 2006) and they are junk...parts breaking, windows hard to operate, etc. so we wanted something in our new home that would that give use better longevity. Furthermore, it seems like fiberglass models give you more window and less frame which is appealing because we want as much light as possible. Finally, it seems like wood windows are a maintenance issue...fading We plan on getting bids from Milgard (hopefully their is a big difference from their builder grade product) and maybe Pella. We also have a 2nd Marvin Infinity dealer in town but their reviews are not that great. Other suggestions on a quality fiberglass option would be appreciated but it seems like there are fewer options.