I don't know about Sanford Hills but I've had Anderson and also Pella Windows. You can't go wrong with either Anderson OR Pella. I absolutely loved them both.
You get some weather in Maine so energy efficiency is important. I had a full house of Pella windows in Lake Tahoe and the energy efficiency was amazing during the cold winters. My Anderson windows were in my home 20 years ago in Sacramento but I did have one Anderson Art Glass in Lake Tahoe and it was also efficient.
I had safety latches on my Pella windows. I don't know about Anderson on the safety latches.
Pros --Anderson/Pella you can choose standard or custom window sizes, several glazing/glass package options and extras like exterior cladding, several grille styles and screen types and many interior/exterior color and hardware options. Pella offers several types of wood materials while Anderson's choices are very limited (I suppose this could be a Con). They can be used for new construction or replacement. Well made products. Very energy efficient. I recently read that Pella has Insynctive window sensors that integrate with smart home security systems and Anderson has Wireless VeriLock security sensors. I wish they would have had that when I bought them. Pella--Option for built-in blinds or shades (Loved this feature!). Both Pell/Anderson have roll-up/down screens which is a nice feature if you want to be able to use the screen in the summer to keep the bugs out but in the winter want to clarify your views. Anderson-- also has an Art Glass series (stained glass that you choose your own custom colors) I used on one of my kitchen windows that brought light into the kitchen without revealing the view of our neighbor. Nice!
Cons-- both are expensive but well worth the luxurious beauty. Except for the limited wood choices, I can't think of any cons for Anderson. Loved the Pella windows with shades inside but one con would be that for some reason, some of the windows I had to unlock and open in order to lower or raise the shades which was inconvenient. Pella was a pain to wash because there were basically two windows with mini blinds inside. I believe Anderson windows have tilt hinges for washing...or at least some of the windows do.
I HIGHLY recommend having a Pella or Anderson installer or you will have a difficult time with the warranty if you should have any issues down the road. This is an informative article which also compares Pella/Andersen to alternative lines at the end of the article. . https://www.roofingcalc.com/pella-vs-andersen-windows-cost/
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