Retrofit Assessor Accreditation Scheme

The Quidos Retrofit Assessor Certification Scheme is a TrustMark approved scheme and operates within PAS 2035 Framework, the specification for the energy retrofit of domestic buildings.

Completion of a Retrofit Assessor training course allows qualified assessors to join our Retrofit Assessor scheme and produce Retrofit Assessment Reports.

When Retrofit accredited with Quidos, Retrofit Assessors will work alongside the Retrofit Coordinator.

The Role

The Retrofit Assessor plays a vital role within the creation of a Retrofit project.

Assessors will gather a variety of information, including but not limited to, the identification of the installed building services, an appraisal of the dwelling’s heritage and an identification of any constraints imposed by the local planning authority.

This role is a additional upskill from those currently accredited as a Domestic Energy Assessor (DEA). As a DEA you will already hold extensive knowledge of existing dwellings.

Get In Touch

If you are interested in becoming fully Retrofit qualified or accredited, please get in touch using the contact form on this page.


Quidos is a TrustMark Registered company..

When a consumer uses a TrustMark Registered Business, they know they are engaging an organisation that has been thoroughly vetted to meet required standards.

You can be assured that the company has made a considerable commitment to good customer service, technical competence and trading practices.


RdSAP Energy Report
Detailed Floor Plan
Condition Report
Occupancy Assessment

Lodgement Fee

Retrofit lodgement fee is £5.

Membership Fee

Application Fee £99+vat (not applicable to Quidos members)
Membership Fee £230+vat