An image of a factory worker testing a spacer bar An image of a testing unit An image of glass units being tested An image of a glass unit undergoing testing

Our flagship purpose built branch in Swansea is the heart of our operation, and where we produce 30,000 insulated glass units per week.

Our continual investment in state of the art machinery, combined with our high calibre workforce allows us to lead the industry in insulated glass unit production methods.

Our dedicated fleet of transportation vehicles get our products to the centre of your operation, whether that be your warehouse or a worksite.

Our dedicated stained and bevelled glass studio and the attention to detail we’re known for allows us to provide our customers with the very best option each and every time.

Quality glass units from a reliable and trustworthy supplier

An image of the BSI ISO 9001 logoCE Marking
(Declaration Of Performance)

From July 1 2013 legislation dictates that sealed unit manufacturers, toughened glass processors and window and door fabricators will need to CE mark their products and prove their compliance to all relevant legislation. For more information about CE marking and the conformity of our products please call us on 01792 773 752 or see the downloads section below for our Declaration Of Performance documents.

An image of the Kitemark BS EN 1279-2/3BS EN 1279 -2/3
(Moisture penetration and gas leaking/concentration tolerances)

Glass Systems Insulating Glass Units (IGUs) fully satisfy the requirements laid out in BS EN 1279-2/3. This means that our IGU’s have passed tests for moisture penetration, gas leakage and concentration tolerance. Acquiring this certificate enables us to offer fabricators and installers an IGU that will last for a long period of time without the need for replacement, due to clouding of the unit through leaked gas or internal condensation.

An image of the BSI ISO 9001 logoBSI ISO 9001
(Quality Management)

Glass Systems has implemented a quality management system to help us effectively manage and organise our business in order to fully meet our customer’s requirements. This system ensures our entire production and manufacture process is carried out to the highest standard, meaning you only get the best quality products and services we can offer.

For more information call us now on 01792 773 752 or use our contact form


File Type
  Description   Download
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  British Standards Institution (BSI) Kitemark License   Download   (771KB)
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  British Standards Institution (BSI) Kitemark License (Peterborough)   Download   (766KB)
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  British Standards Institution (BSI) Quality Management Certificate   Download   (484KB)
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  GSL Dangerous substance compliance 4.6   Download   (213KB)
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  GSL Declaration of Performance - 001 IGUs 2013   Download   (324KB)
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  Glass Systems Ltd - Terms and Conditions   Download   (475KB)

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