07:10PM | 11/10/13
We have replaced 4 rotted vinyl clad frames in our house built in 1990, 3 more need immediate action and all will eventually need replacement. The "frame kits" were milled by Marvin because they knew there was a problem but we were out of warranty period. Now they no longer mill the frame kits so we are looking at replacing the entire windows when the sashes are quite satisfactory. Very frustrating! What have others put in for full replacement windows? Any recent word of class action?


11:34AM | 11/13/13
We also built our home in 1994 and are still living in the home with these poorly manufactured MW windows and are at a point of having to replace at least four of the windows. I know our windows were manufactured by MW I was involved with the contractor , building proses and was here the day the windows were delivered and installed.
Very dissatisfied.


08:34PM | 12/15/13
I built my house in 2002 I installed mw windows that I purchesed at Lowes. I paid over 18,000 for them and now they are rotten.


08:57AM | 12/16/13
Rotting is usually caused by condensation on the inside surface of the window. Read posts for all different brands and read technical literature and you'll discover this condensation is not the fault of the window construction, but other factors within the home. If the rotting is on the outside, it can be due to gaps in caulking, cracks in paint that let moisture in, etc.

Homes are insulated very well nowadays which is a double-edged sword. Air tight homes retain moisture, which ends up causing condensation on windows.

If you have blinds or curtains pulled, the air in the room won't circulate and condensation -- even ice -- will form. This will happen no matter what brand of windows you have.

Showering and cooking while not running external exhaust fans can exacerbate the problem.

Condensation can happen more frequently in bedrooms if you sleep with doors closed, since you exhale water vapor when you breathe.

Andersen Windows has a really great video that helps explain condensation, why it happens, and how to prevent it


08:13AM | 01/01/14
Member Since: 01/01/14
1 lifetime posts
We build our dream home 14 years ago my wife and I researched windows for our home and picked MW Jefferson windows .That was a mistake we have 40 windows in our home and everyone has rot problems. We also contacted the MW rep he came out to look and he wasted his time and mine

Sign me up



12:23PM | 03/12/14
Our house was built in 1996 and we are having the same issues as everyone else on this board! Our problem now is the mold growing on the rotting wood is causing health problems for our daughter. Along with medical bills, replacing the windows in our house was not in the plan. Talking to a Pella rep today to get something long lasting and safe!


07:27PM | 03/12/14
I just came across this site today we built our home in 1994 and I worked for a float glass plant that supplied the glass to mw and numerous other companies. I, just like everyone else on here did my research I even visited 4 of the plants that make the diff windows and we picked mw just like everyone else on here did we actually had some torrential rains this year and I noticed a couple wet spots on our ceiling inside our home. When we went outside and looked at our dormers to see if there was a crack or something not sealed around them I noticed the vinyl looked loose and when I tried to push the vinyl back up against the bottom of window the whole bottom half of the window fell off... So far we have checked 6 of the 18 windows the quotes we received from 9 diff contractors just to replace (6) windows has been anywhere from $2500-3200 and that just a third of the windows so heck yea sign us up if theres a class action we just don't have that kind of money to throw around as I'm sure you don't either and point is we shouldn't have to pay we've already paid one time for a product we thought was quality...


07:35PM | 03/12/14
Member Since: 03/12/14
1 lifetime posts
I didn't realize I needed to sign up to leave my email address I sure meant to I didn't want to be anonymous I'm the one that worked for float glass plant...


12:28AM | 03/13/14
I am having the same problem with my M&W windows.Initially I thought it was only one window but I've found out since that time that there are about6 of my windows that are literally dry rotting and the glass panes are slipping.I built my home in 2000 and just last year called M&W and spoke to a supervisor who was very nasty and rude!He told me my windows were no longer under warranty.He was supposed to call me back and never did.Now I know the problem is worse than I initially thought.What can I do.Now I'm pre paring my house to sell it and am confronted with this Expensive mess.How can I get help?
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