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Certass Trade Association - Inclusive NOT Exclusive

CTA is the largest Trade Association in the fenestration sector.
We aim to be the inclusive hub for installers with key aims to:

  • Represent member’s interests, providing a collective voice more likely to gain notice from Government
  • Represent installers needs within the supply chain
  • Be approachable, and helpful & understand your views on the industry
  • Provide relevant industry information, training and business guidance both specific to industry & general
  • Provide a meaningful member Code of Conduct that consumers will engage with
  • Always remain affordable 
Young diligent female worker measuring finished metal-plastic window in workshop


We are open to the entire supply chain; Installer, Manufacturer & Fabricator

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Monthly membership only £23.95+VAT per month

smiling window installer in blue uniform standing in the room


And be part of an exciting new association with you at the heart of it

Become a Member

Members Checklist

  • Free for Certass members
  • Glazing's largest Trade Association
  • We build our offering based on your feedback
  • Fully Digital - easy to access whenever you need it
  • Join the movement to upskill our industry
  • Member discount packages
  • Traning developed from your feedback
  • Useful business template documents, advice, consumer material & support

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