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“Manufacturing high quality glass products since 1977”

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As well as standard double glazed units, Topline have the facilities to manufacture super-slim Heritage units. These units can be made at an overall thickness of 12mm (which can be reduced even further to 10mm if possible to use 3mm glass), and a sightline of 5-7mm. When using 4mm Low-E coated glass, the coating on the inside of the unit reflects heat back into the room, and by using the very latest in warm edge spacer technology we can ensure that these super slim units still retain an excellent centre pane u-value. These units are ideal for glazing into frames originally designed to hold single glass. And in most cases, local authorities will allow these units to be installed into listed buildings as they appear exactly as the original single glazing. For more information and prices, please contact the office.

Heritage Unit Specification