TrustMark Membership


TrustMark Membership is open to any existing Contractor Member of RetrofitWorks, with a £100 (including VAT) annual fee.

If you are not currently a RetrofitWorks Member and are interested in TrustMark Membership, please visit our Membership page for more information, or apply for Associate Membership to get started.


RetrofitWorks is an approved Scheme Provider for Trustmark and is offering our existing members a seamless transition into Trustmark membership.

TrustMark is the only Government endorsed consumer protection scheme for quality tradesmen working to high standards, and since October 2018 has been extensively upgraded and rebranded to include all the recommendations of the 2016 “Each Home Counts” independent review. Their website currently has over 750,000 tradesperson’s details viewed by the public every month on the “Find your local TrustMark Business” section of their website.

Furthermore, from 1st January 2020, all ECO Installers must be Trustmark registered and able to lodge data via the Trustmark Data Warehouse to access funded work. The PAS2035 transition from 1st January 2020 to June 2021 is easy with us – we have a range of Retrofit Coordinators already in place who can approve and sign off to that standard. Installers who certify themselves to 2019 standards in this transition period, can access a 20% uplift on grants from ECO providers.