SEALTEC offers full pipe freezing services of virtually any size. From 1/2″ to 40″ and beyond, if the contents of the line can be frozen Sealtec can freeze it! Sealtec is a full nitrogen outfit with over 35 years of experience. Our technicians are trained and certified to do freezes safely and to know when a line is in fact frozen. We serve many plants in the northeast as well as most mechanical contractors.