Manufacturers of premium quality high performance double glazed sealed units

Welcome to Holdens SupaSeal Limited manufactures of premuim quality high performance double glazed sealed units, also known as Insulating Glass Units (I.G.U).

Established for over 70 years, Holdens SupaSeal remains an indepencent family-owned company whose name is synonymous with quality within the glass industry.

Holdens SupaSeal offer a range of high performing glazed unites incorporating the latest glass technologies; energy efficiency, self cleaning, solar control, together with warm-edge spacer and argon gas filling.


CE Marking


CE Marking indicates that a product conforms to a European technical specification called harmonized European norm (hEN).

From the 1st July 2013 CE Marking will become a standard for sealed unit manufacture, window / door manufacture and supply an installation of windows / doors.

Holdens supaseal conform to the CE marking standard and below you will find technical information on the products we produce.

For further information please contact us direct.