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5.0 average rating
The windows look fantastic and I've noticed a real difference in temperature regulation inside the home. The sound buffering is a nice bonus too — much quieter inside now.
We compared Keller to a national window company. Keller's presentation included real samples and a lifetime transferable warranty, and the price came in about half. Installation took about six weeks and the results speak for themselves.
I didn't think our windows needed replacing until the crew was finished. Fog between the old panes was worse than I realized. Couldn't be happier with the upgrade.