What is TrustMark?
TrustMark is the ‘Government Endorsed Quality Scheme’ covering work a homeowner chooses to have carried out in their home. When a homeowner uses a TrustMark Registered business, they know they are engaging an organisation that has been thoroughly vetted to meet required standards, and who is committed to good customer service, technical competence and trading practices.
Following the ‘Each Home Counts’ review the TrustMark scheme was chosen as the route to provide homeowners with reassurance and protection from rogue traders, and as such it is the only Government endorsed scheme for domestic trades.
What are the benefits of a TrustMark Registration?
By applying for TrustMark Registration, your business can enjoy benefits including:
  • Differentiate your business by letting potential customers see you are part of a Government endorsed quality scheme
  • Ensure that you are ready for any requirements introduced for ECO and other programmes
  • Use the TrustMark branding on your vehicles, website, stationery, and marketing materials to promote your business and raise your TrustMark profile
  • Inclusion in the TrustMark Online Directory
  • Potential preferential access to BSI Standards
  • Free access to the TrustMark Business Portal
  • Help drive out rogue traders 

What are the criteria for TrustMark Registration?
The TrustMark Scheme operates as an extension to IAA PAS Certification, so it is only available to companies that are also applying for/or are already registered to The IAAs PAS Certification scheme.
However, as it includes additional requirements it is subject to a separate application, assessment, Registration and annual audit process. This will incur a fee of £100 (inc VAT) to be paid annually. As far as is practicable initial and routine audits are integrated with Certification surveillance to avoid duplication of visits.
The scheme is underpinned by a suite of regulations and Rules that members must follow, comprising:
  • IAA TrustMark Application, Declaration and License
  • TrustMark Framework Operating Requirements
  • TrustMark Consumer Charter
  • TrustMark Code of Conduct
  • IAA TrustMark Scheme Rules
  • IAA Code of Professional Practice
  • IAA Vulnerability Policy 

The IAA Best Practice
As a member and compliant with The IAA Practice you can reduce the inherent risk for the measure covered by one. PAS 2035:19 reduction of inherent technical risk scores of energy efficiency measures using TrustMark recognised Industry Quality Assurance Schemes.
PAS 2035:19 Annex B Clause B.2 introduces a mechanism that permits the reduction of inherent technical risk scores for a measure(s) where a closely defined criteria is met. Where the intended Retrofit Installer operates under an ‘industry quality assurance scheme’ )that has the features as listed in the relevant section of the PAS) a reduction of the inherent technical risk scores by one for the measure(s) covered by that scheme is permitted. Please see the applicable sections of PAS 2035-2019 on the TrustMark website for further information.
TrustMark work closely with Retrofit Coordinator Scheme Providers and the wider interested parties. They have agreed that a consistent approach must be in place so that a TrustMark Registered Retrofit Coordinator, considering this provision of the PAS works to a common consistent standard.
TrustMark currently recognise two organisations that are delivering such industry quality assurance schemes as permitted by PAS 2035:19 one of which is the CIGA guarantee under the quality assurance framework for The IAA. Retrofit Coordinators can recognise this scheme when deciding whether a valid reduction by one can be made to inherent technical risk score for the respective measure(s) within a project.
How do I apply?
The simple application process involves 5 main stages:
  1. Complete the application form and declarations and submit to The IAA with supporting documents and payment
  2. Initial assessment of your application by The IAA who will advise if anything is missing or the key requirements are not met
  3. Once the application is complete an initial HQ assessment and site surveillance is scheduled
  4. Depending on the outcome you will be advised whether Improvement actions are required, or whether your application was successfully registered
  5. Start promoting your registration and use the TrustMark branding 

What help is available?
If you require any assistance with your application or further information on how to comply with the underlying rules and regulations, then email for more information.
Further information including a list of the trades covered and the ability to search for a registered business is available on the TrustMark website
TrustMark updates
Impact of COVID-19
Due to the impact of the COVID-19 lockdown period and its restrictions, a refreshed agreement becomes effective from 3rd June 2020 and succeeds the initial flexibility agreement which commenced 3rd April 2020.
This new agreement provides those business who have a backlog of work commenced under PAS2030-2017 and were transitioned to PAS 2030-2019 on or before 3rd April 2020, a further 60 days to lodge those measures as PAS 2030-2017 compliant.
This will mean that businesses that have already transitioned to PAS2030-19 get an additional 60 days from 3rd June. This is because the 60 days from 3rd April to 3rd June have been impacted by the recent COVID 19 crisis and lockdown rules. Businesses that transition after 3rd June get 60 days. This considers the easing of lockdown restrictions.
The IAA are a TrustMark Scheme provider in association with CIGA, email for more information about registering.
Extension to TrustMark data warehouse
Further extension to the TrustMark Data Warehouse Lodgement Flexibility Agreement update. The IAA, on your behalf, has been positioning for changes in the PAS2030-19 and PAS2035 transition arrangements and once again TrustMark have listened to the concerns of the industry, extending the data warehouse lodgement flexibility during this very difficult time for the industry.
TrustMark have recently updated the TrustMark Data Warehouse Lodgement Flexibility Agreement to consider the recent crisis. The impact of the COVID-19 lockdown period has been reported as having a significant effect on the 60-day flexibility agreement originally published on 27th March 2020.