Drafty, single pane windows were installed in many homes prior to the demand for more efficient, energy saving, higher quality home windows. Due to outdated home windows installations, homes and businesses having been paying an increase in their energy bills by 15% to 25% due to inefficient design allowing air to escape outside. What a waste! And considering that 45% of energy bills to heating homes and business on average, according to the Department of Energy, that bill is probably higher for colder areas such as Chicago, IL, or for gas dependent homes that have an average bill of $649.…