PAS 2035 Solutions

PAS 2035 is the UK government’s official standard for delivering domestic retrofit projects. It sets out a whole-house, fabric-first approach to ensure energy efficiency upgrades are high quality, safe, and future-proof.

Designed to create consistent, well-managed retrofit projects, PAS 2035 is mandatory for the installation of energy efficiency measures (EEMs) funded through government schemes such as ECO4, GBIS, and SHDF.

The standard considers the entire property, not just individual improvements, ensuring that upgrades work together to improve energy performance while maintaining occupant comfort, health, and safety. It covers the full retrofit process, including:

• Assessment of the home and its condition
• Identifying appropriate improvement measures
• Design and specification of works
• Installation and quality assurance
• Ongoing monitoring and evaluation

PAS 2035 helps protect homeowners, tenants, and landlords by ensuring retrofit projects are designed to avoid unintended consequences like damp or poor ventilation, while maximising energy savings and long-term value.

From 30th June 2021, it became mandatory for all companies installing Energy Efficiency Measures (EEMs) to comply with PAS 2035:2019 and PAS 2030:2019 standards. The updated PAS 2035:2023 and PAS 2030:2023 versions will come into force from 31st March 2025.

ECO Surv’s platform is designed with PAS 2035 compliance at its core, providing Retrofit Assessors and Coordinators with a structured, end-to-end workflow to manage every stage of a compliant retrofit project. Our system ensures all mandatory PAS requirements are completed before progressing to the next phase, reducing the risk of errors or missed steps.

In addition, our dedicated Retrofit Services team is on hand to support customers throughout project delivery – helping you stay compliant, streamline your workflow, and confidently deliver high-quality, PAS 2035-compliant retrofit projects.

PAS 2035 Frequently Asked Questions:

How do I become a Retrofit Coordinator?

You can look into becoming a certified Retrofit Coordinator through The Retrofit Academy. Find more information here.

How do I become an accredited Retrofit Coordinator?

In order to use the ECO Surv platform, you must become an accredited Retrofit Coordinator. ECO Surv recognises a number of different accreditation bodies in order to do this, including.

• Stroma Certification
• Elmhurst Energy
• Quidos

Can I get accredited with an accreditation body not recognised by ECO Surv and use the ECO Surv platform?

If you are currently accredited with an accreditation body not recognised by ECO Surv and would like to use the ECO Surv platform, you must also get accredited with either Stroma Certification, Elmhurst Energy or Quidos.

Do I have to be PAS 2035 accredited to use the ECO Surv platform?

Yes, you must be PAS 2035 accredited to use the ECO Surv platform. However, if you get in touch with us we can point you in the right direction of how you can go about doing this. To work on jobs created after March 2025, you must be accredited to the latest standard: PAS 2035:2023. Our platform supports both revisions of PAS 2035 depending on which scheme you are working under.

Am I allowed to be accredited by more than one accreditation body?

Yes! This is a common misconception and one we here at ECO Surv are keen to demystify. You can be accredited with more than one accreditation body in order to find work as a Retrofit Coordinator. For example, if you are currently accredited with an accreditation body not recognised by ECO Surv and would like to lodge through us, you can also get accredited with an ECO Surv recognised accreditation body (including Stroma, Elmhurst Energy & Quidos).

Can I be removed by TrustMark for being accredited with more than one accreditation body?

No, you cannot be removed by TrustMark for being accredited with more than one accreditation body. For more information on this, visit the TrustMark site here.

How do I find more work as a Retrofit Coordinator?

Through ECO Surv! By coming on board with ECO Surv’s Retrofit Coordinator service, you will have access to our portal and mobile applications. Our mobile applications enable both Retrofit Assessors and Coordinators to capture the information they need while out in the field. It is a fully integrated service. This is based on the PAS outlined Risk Path of the project and determined through the mobile application PAS2035 risk route assessment. It can then be submitted to the ECO Surv portal for validation, sign-off, installation and lodgement to the TrustMark Data Warehouse through your preferred accreditation scheme provider.

This sounds great! How do I find out more?

You can find out more by getting in touch with us via our Contact Us page linked below. Fill out the form and a member of our friendly team will get in touch.