At Haller Premium Door & Window we pride ourselves on installing the highest quality new Replacement Windows in Hanover, PA.  We offer many  replacement windows for all your needs.  With extensive experience installing all styles and shapes of replacement windows our installation exceeds all manufacturer standards.  Our distributors pride themselves on their quick turnaround, and most window projects are available to install within four weeks of ordering.  We offer Low-E energy efficient Replacement Windows in Hanover, PA with argon gas.  Our ProVia portal allows you to sit in your home with our expert and design your new windows on the spot.  Whether you're looking to replace your ugly old windows or increase your homes efficiency.