Glazier / Glass Installer Job Description. Trinity Glass is looking to hire a talented and professional glazier / glass installer to measure, cut, and install glass fittings in homes and businesses. Our office is located at 8926 Telegraph Rd., Lorton, VA 22079. Glazier / Glass Installer Duties and Responsibilities. Interpreting blueprints to determine the shape, size, color and thickness of glass for installation procedures. Measuring and marking...