Energy costs have recently reached historic highs, as growing domestic and global energy prices have forced families to seek innovation to help mitigate their energy-related costs. In the city of Richmond, Virginia, the local government has taken great strides in helping to make Richmond more sustainable, by increasing efficiency and effectiveness in the city government. Likewise, private citizens are seeking energy efficiency in their own lives, especially in their homes. A popular and cost- effective energy-saving technique has been to replace old windows, with new energy-efficient windows. Richmond window companies, like River City Window and Door, have dedicated staffs focused on helping to improve energy-efficiency through replacement vinyl windows.