CGL Systems Ltd

Since 1945 CGL Systems Ltd have been designing and producing robust weather protection products from its state-of-the-art facility on the outskirts of Glasgow in Scotland.

We manufacture a range of building systems for both new build and refurbishment sectors of the construction industry. Our core solutions produced are membrane lined gutters, rainwater outlets and rainscreen facades systems. We have multiple versions of each product available, depending on its intended environment and designed purpose.

CGL Systems are market leaders in the design and manufacture of industrial and commercial membrane lined gutter systems for use with gravity fed, siphonic and RainPulse drainage systems. We offer a full design service for both gravity fed drainage and RainPulse, full bore drainage systems, Our membrane lined gutter systems can be used with third party siphonic outlets and systems. Our range of membrane lined gutters includes:

  1. Composite (insulated) gutter for the new build environment
  2. Single skin (non-insulated) gutter for both new build and refurbishment environments
  3. Rynna-line a refurbishment gutter system for aged or failing gutters


  • Roof drainage calculations
  • Specification support and creation
  • Contractor training and development
  • Project management
  • Site inspection(s)
  • Technical estimating and support
  • New build and refurbishment construction products
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CGL Systems Ltd
2 Young Place
Kelvin Industrial Estate
East Kilbride
G75 0TD

Tel: +44 (0) 1355 235561