They are all a pretty good window. I myself prefer installing and working with Pella. If you are looking at any Patio Doors Pella is by far the best, especially the sliders as the moving panel is on the outside and give a tighter seal in stormy weather than a moving panel on the inside which has a tendency to push away from the fixed panel in windy situations. As far as service goes I get far better service from my Pella distributor, but every distributor is a little different. The owner of the Pella Distributor here in New England is very focused on customer satisfaction, and while not totally perfect they do everything they can to keep the customer happy within reason.

I prefer the Pella also. I've had the blinds between the panes of glass on the sliding glass doors (in my previous home) for years. The great thing was they never got a speck of dust on the blinds, dogs and children did not bend them, they were so easy to operate. Also the door slid open so smoothly. I never encountered a smoother sliding door and it also had a self closing screen. I don't know what kind of slider is in the house that we bought but I can tell you it is like going from a Rolls Royce to a ???????

We are starting to look at putting new windows all around in the 22 year old home we bought and I'm pretty sure they're going to be Pella's!

Here again it matters what style of window unit you are looking for, casment, double hung, ect. The climate you live in. An overlooked part of a window is the hardware. If you like CSMT windows having a dual arm orperator is an advantage and that is not found in the Andersen or Pella. If you are using DH it doesn't matter. Having the outside door orperate and thus when the wind blows it blows it closed sounds great. Now if you live in a enviorment that has alot of bugs and you stay up late and there are a ton off critters all over the screen and you have to open the screen and let them in to close the door, not so good. Or if you live in a cold climate and the ice and snow build up on the track and it is hard to open door with out chipping the ice off daily, again not so good.

All three are good brands but keep in mind the product is only as good as the installation. Pella has some great options when it comes to pleated shades, triple pane glass and of course a vast array of exterior color options. I like Andersens TruScene screens and the HP4 "EZ" clean glass and Marvin has virtually any size available so between the 3 main players you mentioned, you really have to determine the features best suited for your lifestyle.

Have any of you heard of and tried Okna windows or Starmark by Okna. They are really energy efficient they have two windows that are first and second place for the Energy Star rating. Starmark beats Anderson and Pella easily.

@galefarm, if you're still in this forum, wouldy you share which Pella distributor in New England you used? Thank you.