I had 23 triple pane windows installed in March 2008. Installation was excellent. My electric and gas usage has been reduced by 48%. I recently was having a problem with a window and called TN Thermal. They came out and fixed the problem 2 days later and I live 115 miles away. Finally a company that stands behind their warranty. If you are going to replace your windows use TN Thermal!
Pros: SERVICE
Cons: None
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