Whenever an exterior door is opened, the temperature inside the building can drop very rapidly. This forces the building’s comfort systems to run longer, resulting in higher energy costs. And even if people entering and leaving the building are conscientious about closing the doors behind them quickly, it’s also common to feel drafts around windows and doors during the winter. The good news is that weatherstripping can help you lower your bills, and our team at National Custom Hollow Metal is ready to give you a quote for custom-built two-part kerf frames in two hours or less!