TrustMark Press Releases

Certass Enquiries

Feb 13, 2015, 12:12 PM by TrustMark

Certass, one of TrustMark's approved scheme operators which registers double glazing installers and other firms with TrustMark, changed the rules of its scheme last week. This has resulted in a high number of enquiries to TrustMark from tradespeople and firms which were previously registered but who, as of Monday 9 February, are no longer listed on the TrustMark website.

We apologise if we are not able to respond in full to all enquiries at this time.

All enquiries from those firms or their customers should be directed to Certass in the first instance. Please contact 01292 292 099 or

Further information will be posted here as it becomes available.

Any affected firms looking to renew registration with TrustMark, please contact Certass or click here for further information.