Update:

Free audit available to those who have had external wall insulation under ECO4 or GBIS - Book Now

Updated 4th June 2026

Booking Your Free TrustMark Audit

This audit forms part of a government-backed programme to ensure that energy efficiency improvements installed in your home meet required standards

Important Information

We've created a leaflet explaining the free TrustMark audit process, what to expect during your visit, and what happens if any issues are identified.

The leaflet is available in multiple languages and can be downloaded below:

 

Language Download
Bengali (বাংলা)

এখানে ডাউনলোড করুন

English Download Here
Gujarati (ગુજરાતી)

અહીંથી ડાઉનલૉડ કરો

Hindi (हिन्दी)

यहां से डाउनलोड करें

Polish (Polski)

Pobierz Tutaj

Punjabi (ਪੰਜਾਬੀ)

ਇੱਥੋਂ ਡਾਊਨਲੋਡ ਕਰੋ

Romanian (Română)

Descărcați De Aici

Urdu (اردو)

یہاں سے ڈاؤن لوڈ کریں

Welsh (Cymraeg)

Lawrlwythwch Yma

 

You can book your free audit using the form below:

What to Expect on the Day of Your Audit

A qualified TrustMark surveyor will visit your property to carry out the audit and provide you with clear information about the outcome and any next steps.

During the audit, our surveyor will carry out a thorough inspection of the work completed at your property. This will include:

  • Inspecting the energy efficiency measures installed in your home
  • Verifying that the installation meets the required technical and quality standards
  • Taking photographs to document the condition and installation of the measures
  • Conducting property measurements to support verification checks
  • Explaining the outcome of the audit and advising you of any next steps

All TrustMark surveyors carry valid TrustMark identification, which they will present upon arrival.

Accessibility Support Using Recite Me

TrustMark is committed to ensuring that our information is accessible to everyone.

Our website includes the Recite Me accessibility tool, which allows you to:

  • Listen to content through audio playback
  • Translate information into a wide range of languages
  • Download content as an audio file
  • Access a printable version of the text

You can access these features directly on the TrustMark website to suit your individual needs and preferences.

Contact Us

If you'd like to talk to us about this free offer for an audit: