Yes in my opinion Windsor is that bad with Sierra Pacific right next to it at the exact same level. While you do not care for it of that bunch the Wood Ultrex Integrity would be my choice hands down. Admittedly I do not know much about the Milgard Essence so that may be a decent choice as well if others chime in on the product.

+1. I think the more proven track record is the Marvin Integrity and that substrate.

Hello hoscar1 -

Negative reviews can be found for every company and wise shoppers should of course be skeptical and do their research. Since many have not heard of us before, we would like to provide a little background on Windsor...

Windsor is sold exclusively through select distributors and has been in business since 1946. Our parent company, Woodgrain Millwork, is a family-owned business and the largest manufacturer of mouldings and interior doors in the United States (www.woodgrain.com). Because of our relationship with Woodgrain, we are able to offer one of the best values in the industry. Our windows and doors offer many of the same features as our higher priced competitors, and they are tested to the same standards and meet the same certifications and Energy Star guidelines.

Windsor products have been installed in some of the most magnificent homes throughout North America, including the Bighorn Ski Chalet at Revelstoke, BC, which was named the best ski chalet in the world in 2014 (http://www.cbc.ca/news/canada/british-columbia/revelstoke-s-bighorn-ski-chalet-named-best-in-the-world-1.2854138).

But, please don't take it from us. We invite you to contact any of our distributors to learn more. Their contact information is available on our website at http://www.windsorwindows.com/DealerLocator.page

Or, check out these independent, unsolicited comment links on Houzz:

[https://www.houzz.com/discussions/very-nice-how-have-the-windsor-windows-performed-thx-dsvw-vd~3291574?n=1[(https://www.houzz.com/discussions/very-nice-how-have-the-windsor-windows-performed-thx-dsvw-vd~3291574?n=1)

[https://www.houzz.com/discussions/who-makes-these-windows-dsvw-vd~413338?n=5[(https://www.houzz.com/discussions/who-makes-these-windows-dsvw-vd~413338?n=5)

[https://www.houzz.com/discussions/help-with-windows-for-ocean-view-home-what-brand-are-these-dsvw-vd~367354?n=2[(https://www.houzz.com/discussions/help-with-windows-for-ocean-view-home-what-brand-are-these-dsvw-vd~367354?n=2)

[https://www.houzz.com/discussions/very-nice-how-have-the-windsor-windows-performed-thx-dsvw-vd~3291568?n=1[(https://www.houzz.com/discussions/very-nice-how-have-the-windsor-windows-performed-thx-dsvw-vd~3291568?n=1)

[https://www.houzz.com/discussions/where-did-you-get-those-windsor-windows-from-dsvw-vd~800015?n=1[(https://www.houzz.com/discussions/where-did-you-get-those-windsor-windows-from-dsvw-vd~800015?n=1)

[https://www.houzz.com/discussions/where-did-you-get-those-windows-dsvw-vd~177370?n=4[(https://www.houzz.com/discussions/where-did-you-get-those-windows-dsvw-vd~177370?n=4)

In the end, you must decide what is best for you and your budget. Best of luck on your home!

I'm not sure if you've already made your decision with your windows, but here is my 2 cents. I just had the Pinnacle series (extruded aluminum clad windows) casement windows installed in my house. It does NOT perform any better than my 30 yr old original window. The owner of contractor company came out to look at the install and agreed that there is air leaking in thru the sash and the sill. A technician from Windsor Window agreed as well. Then a regional sales manager came out to look at it, and he basically played dumb and said he's not feeling any air leaking. The sales manager basically came to say they are not going to help in any way. Each window costed me $1100 (just the window not including labor), and the quality of product delivered is not worth $1100. There are scratches all over, and some of those are pretty deep that they are going to show even after painting. If there is anyone evaluating Windsor Window, based on my experience I strongly recommend you stay AWAY from Windsor windows because they are not worth the money. Luckily, I only replaced my bedroom windows upstairs. I will NOT use Windsor Windows again for first floor and my future home.