So far we love our Marvin slider. As spring progresses we've found we can't open it as much - too many bugs! It needed some adjustment at the beginning. A rep came out and adjusted it no problem. Marvin has been fabulous! We have a set of two very tall French doors in another room. After they were installed last fall they were fine. Then we got a lot of rain. Slowly the bottom of one swelled and started hitting the bottom of the other and eventually we couldn't open the door. The Marvin person came, saw the problem, and ordered us a whole new set of doors about 1/8" narrower (these are very expensive doors). When he came back to install them (a few months later due mostly to us) the original doors were fine. He said he thought that might happen (companies use very green wood to make doors so they may take some time to get to their proper size). He left the new doors with us - so we have a spare in case something happens to the others. So far the same person has come back to do all the servicing. He's from Marvin itself. (The contractor also has the store that sold us the windows as a back-up but so far we haven't needed them). He's great - fixed a couple of other small problems. I really feel like they stand behind their products. We're having a lot of problems with our Miele appliances - their service is supposedly great but there's no comparison. Miele is a total pain, Marvin is a total pleasure.

We moved into our new house three years ago. After much research on windows, we went with Marvin Integrity for the whole house [LOTS of 6ft. double windows with transoms, six sets of Atrium (double) doors, full glass.] When the estimate came in, about $4k over budget, we decided to change the atrium doors to Therma Tru and we couldn't be happier with them. There are no drafts, they are holding up great! I would definitely go with Therma Tru to trim your cost. We love our Marvin windows too, make sure they are installed correctly ~ I think proper installation is the most important thing on them.

windowshopper- I don't know if the dealers will compete. I have about the same number of windows as you, 3 of them are arched casements, plus 7 sets of French doors (5 of them are stationary). I was told that Integrity didn't make the arched windows I needed & I would need to go with Marvin Ultimate for those. I consulted with 4 different dealers-everyone had a different price and no one was willing to compete. One of them deals pretty much just with Marvin & he was the highest of the bunch! When I tried to negotiate and let him know he was significantly higher than other dealers and frankly he was even higher than the quote I got from Pella (which was through the roof), his response was he may not be the least expensive, but I was paying for quality. Quality? No matter where I get the Integrity, it's the same window quality, right? My framer is installing, so installation quality doesn't enter into it. Then he tried to talk me into all Marvin Ultimate because using Ultimate for the 3 arched windows & Integrity for everything else just wouldn't look right. When I let him know there was no way I could afford all Ultimate, he again went on and on about quality & making room for them in the budget. Obviously, he had an agenda & it didn't match mine. With that being said, one dealer is working with the area Integrity rep to see what they can do about getting a better deal especially on the French doors. They came in about double the cost of Jeld-Wen Siteline, M&W Mira & M&W Freedom 800, and just above the Pella Architect price. The windows were all less expensive than the Siteline, Mira, and Pella. We shall see what they come up with! But absolutely nothing wrong with shopping around--if you don't ask for a better deal, you can't expect them to voluntarily offer you one. Let me know how things go & if you find a dealer with rock bottom Integrity & Ultimate pricing!

There is quite a bit of misinformation that you have been given Mr Jones, I'd definitely take some extra time to sort through it all and make sure that you have accurate facts. I'll go through some, all of which are easily verifiable: Manufacturer and material : All three are very reputable, with Andersen and Marvin having a longer history. That said, Okna has indeed been in business since the early 90's and is a top 100 manufacturer as well. The 3 materials have similar histories as well, as none have been used commonly in a residential window application for more than 20 yrs. All three have their merits, although all three do represent a small "niche" . Vinyl and wood are FAR more common. There is no clear winner here IMO. All are suitable with no decisive pros or cons, particularly considering that each individual product is designed and engineered to exploit the respective materials' inherent strengths, and mitigate its weaknesses. If there is one that I'd put slightly behind the others it would be the Renewal, as adding wood flour/sawdust to vinyl really doesn't add much. Appearance: This depends of course on what areas are examined, however the Marvin all ultrex integrity is by far the slimmest. The Renewal and Starmark are both somewhat bulky by comparison, although neither is very bulky compared to some other products. Despite the slim lines, the all ultrex Integrity is actually the least attractive based on the feedback that I hear. The wood/ultrex on the other hand is bulkier. This category is in the eye of the beholder. Each has its own strengths and weaknesses. Interior appearance: well stated. Some folks would prefer the rich, real wood interior (Integrity) with only a 10 year warranty, others would prefer the synthetic stainable with lifetime warranty and no maintenance (Starmark). Winner again depends on the individual and their needs/wants. Hardware: The Renewal and Starmark both have more attractive hardware options than the Integrity IMO. Both are all metal, both have multiple finishes available. Performance: Here's a big one. To accurately compare, it is necessary to look at apples to apples glass packages. At .25 for a standard double pane package, and .19 for triple pane argon, the Starmark runs away with the win here. With equivalent glass (surface 2 low e, argon fill), the the Renewal and Integrity are .29 or higher. You can switch to any other glass package across the board, and apples to apples the Starmark will be multiple points better. This can be verified via CPD number (certified products directory) at nfrc.org Air Infiltration: Another big one. The reps that you have spoken to are either flat out lying, or being highly manipulative. The only window of the 3 that sees that .05 AI number is the Starmark. The other two are in the teens at best, if not .2+. I would request a structural test data sheet for reference. If renewal or Marvin will provide it, make sure to compare the size of the window and configuration. It is highly likely that your rep(s) are using casement or picture window ratings to compare to the starmark double hung. The starmark is .01 as a casement. Patio doors: Since this was mentioned, the differences as stated for windows continue for patio doors. If the real wood interior is preferred at the expense of performance, then the Marvin or renewal options are better. The Starmark will be a much better performer, but without the real wood interior. Installation and durability: On durability, this is another area that would trend toward Starmark based on containing no organic parts that can rot, and also on the lifetime warranty. Renewal and Integrity are each 10 years (20 on glass). Installation itself will vary by dealer, and should be given proper weight. One cannot speculate on the quality of installation based only on material however. The only thing that could possibly be considered on that line of thinking would be availability to contractors I suppose. Integrity can be purchased by anyone, whereas Renewal and Starmark are exclusive products where dealers are regulated by the manufacturer. One important thing to note, is that comapanies that install Renewal windows are NOT owned by Andersen. They are a dealer that exclusively carries that line and meets Andersen requirements, however they are not actually part of Andersen. Price: This again will vary by dealer and area. Renewal has a reputation as having the highest price, using high pressure sales, and also of posting thinly veiled, inaccurate info where THEY talk poorly about competitors (not to say that is the case here, of course). That said, I'm sure that there are some great Renewal operations across the country, just as there great Starmark and Intergity dealers. Ultimately, these are three windows that are solid to excellent, and each have their own pros and cons. You are unlikely to go wrong with any of the three, it really depends on which options most closely aligns with your goals for the project. It sounds like that is the Renewal at this point, I'd only recommend getting the accurate performance information, and then perhaps that would (or not) impact your decision.