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What We're All About

CTA Purpose

Certass Trade Association recognises the lack of support for the local tradesperson.

Several associations and federations exist, but they usually work to favour the commercial interests of their larger members.

The CTA’s purpose is to redefine your expectations of a glazing association & become the membership body of choice for modern construction excellence. By offering leading service and innovation across the sector to local installers and the wider construction industry that helps companies expand, improve and profit.

We are fully geared to work for the modern SME through an entirely digital delivery. This means we are accessible to all our members, whenever and wherever they need it.

The CTA is excited to represent you and is fully committed to providing members with a united voice within this thriving industry.


Member Benefits

  • Free to existing Certass members
  • Glazing's largest association voice
  • Useful business template documents, advice, consumer material and support
  • Evolving benefits in-line with your requirements
  • Fully digital - accessible whenever you need it
  • Member discount packages
  • Training developed from your feedback
  • Information & advice on government initiatives

Key Personnel

CTA is about you not us, but we thought you would like to know a little about the people you’ll be hearing from. 

We pledge to collaborate with others who exemplify our core principles dedicated to improving the industry. To champion those who perform well, helping local businesses progress and flourish whilst improving engagement between contractor and consumer.
Jon Vanstone
Jon Vanstone
Jon Vanstone

Jon is the CTA Chairman recognised throughout construction and brings a wealth of industry knowledge. Jon holds several positions in trade bodies, government forums and associations. He is Chairman of both the Trade Association Forum and Competent Person Forum as well as RoofCERT Delivery Director.

Member Representative
Simon Swift
Simon Swift
Membership Delivery

Simon is a familiar face in the industry, with over 20 years’ experience dealing across the whole of the UK. He has worked with well-known sector brands, forming relationships with businesses of all sizes. Simon advocates the importance of support to members and a positive client experience. 

Danelle Kaukau
Danelle Kaukau
Business Delivery

Danelle has an established background in relationship and product development delivery. Originally from New Zealand, Danelle migrated to the UK three years ago where she has held Account Management and Product Development roles for the Glass and Glazing Federation’s commercial businesses.