Windows
The Only Two Window Numbers That Matter in Connecticut
U-factor and SHGC decide whether a replacement window suits our climate. Connecticut needs 0.22 or lower and 0.17 or higher, and one of those is a minimum.
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Replacement windows in Connecticut: ENERGY STAR Northern zone numbers, what installation method actually matters, and where the money goes.
U-factor and SHGC decide whether a replacement window suits our climate. Connecticut needs 0.22 or lower and 0.17 or higher, and one of those is a minimum.
Read the articleAn insert window sits inside the old frame, so the clear opening shrinks. On a bedroom already near the minimum, a tidy replacement can quietly end compliance.
Book a free on-site estimate and one of our team will look at what you actually have, measure it, and put the number in writing.