Vinyl Replacement Windows Old rotted out windows can really put a hurt on your utility bills. So give us a call and we'll talk about replacing those old things! We install Mercury Excelum's Thermo-Vyne Double Hung replacement windows. These windows provide better insulation from the elements, easy cleaning and they will never warp or rot! We work quickly and cleanly to ensure we're out of your way and your new windows are in as soon as possible! Call Fred at 914 737 1387 to make an appointment to have your windows measured! Product Brochures from Mercury Excelum are available HERE. We also can replace your storm windows, basement sashes, and ranch sliders.