Topline Glass & Glazing



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Manufacturers of quality sealed units and glass products since 1977. Topline Glass and Glazing are Somerset’s largest sealed unit and glass supplier.

For all your glass and glazing requirements contact the team at Topline Glass and Glazing today.

Topline Glass & Glazing Ltd

The Conquest Business Park

Ilton, Ilminster


TA19 9EA


Bank Holidays:

8:30AM - 5PM


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T: 01460 54443

Home Products Sealed Units Duplex and Georgian Bars

Email: [email protected]

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Also known as Back-to-Back bars or authentic Georgians, Duplex bars are assembled using the same spacer bar colour and material as the perimeter (either in aluminium or warm-edge), and are held together through use of a key system.  These internal bars are designed to give the appearance of multiple units within the sealed unit, and are always slightly narrower than the perimeter spacer bar allowing room for the glass to flex normally.

Once glazed, an external profile (timber, UPVC or aluminuim) is applied to the outer face of the glass over the duplex bar, finishing the look of small individual panes. Topline are also able to assemble curved grids or special designs. Bars are available in a range of colours and sizes to suit all needs.

Contact our office team today for more information.

Duplex Bars

Georgian Bars

Georgian bars are a UPVC bar fitted within the sealed unit between the two panes of glass to visually divide the glass units into small panes. This replicates a traditional style window  and creates an image of glazed mullions.

We offer a range of coloured Georgian bars, in different designs and thickness to feature in between the panels of a double or triple glazed unit. Colours include white, brown, black, gold, light oak, rosewood, white woodgrain, brown-on-white, black-on-white, rosewood-on-white,  light oak-on-white and chartwell green-on-white. Standard sizes are generally 18mm or 25mm.

Topline can also supplied curved bars or special designs on request.

Contact our office team today for more information.