A Family Tradition of Quality and Service Founded by Sisinio Pandiani, an Italian immigrant, in 1921, National Glass Works has been serving Worcester County with the best in home and business, installation and repair, and auto glass for three proud generations. With showrooms on Park Ave in Worcester and Milk St in Westborough, National Glass products include windows, mirrors, bathroom fixtures, home decor, commercial glazing, and hearth ware for your fireplace. We also do auto glass repair and replacement on all makes and models with a team of fully insured, OSHA 10 trained technicians on the road seven days a week to get you back on the road as quickly and conveniently as possible.