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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 their own commercial agenda and favour larger members who can offer substantial financial resource.

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 mobile SME through an entire digital delivery. This means we will be accessible to all our members, whenever 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

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 business progress and flourish, and improving engagement betweeen contractor and consumer.
Jon Vanstone
Jon Vanstone

Jon is the CTA Chairman and brings a wealth of industry knowledge and he holds several positions in trade bodies and associations. He is chair of the Trade Association Forum (TAF) and the Competent Persons Forum (CPF), Trustmark Director and RoofCert Delivery Director.

Jason Clemmit
Technical Director

Jason brings a solid technical background to the table and first-hand experience of what it means to work through the ranks from installer to delivery of a successful Certification body, representing at a wider industry and government level, and exemplifying quality technical expertise.

Simon Swift
Membership Delivery

Simon is a familiar face in the glazing sector, having held long term roles with well-known brands who advocate the importance of support to it’s members & promote a positive client experience.

Danelle Kaukau
Busines 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 business.