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Retrofit & Energy Improvement

PAS 2035 Retrofit
Assessments.

Accredited retrofit assessments for domestic properties — the essential first step in any PAS 2035 compliant retrofit project. We work with retrofit coordinators, housing associations and local authorities across the UK.

PAS 2035 compliant Retrofit Assessor accredited Elmhurst Energy registered ECO4 & grant schemes
What is PAS 2035?

The standard for domestic retrofit in the UK

PAS 2035 is the publicly available specification that governs how domestic energy retrofit projects must be designed, managed and delivered in the UK. It was introduced to ensure that retrofit work improves homes without causing unintended harm — such as damp, condensation or overheating.

Every PAS 2035 project must begin with a Retrofit Assessment, carried out by an accredited Retrofit Assessor. The assessment establishes the current condition and performance of the property and provides the information that the Retrofit Coordinator needs to design an appropriate improvement plan.

Without a compliant Retrofit Assessment, work cannot be signed off under PAS 2035 — and grant-funded schemes such as ECO4 and the Great British Insulation Scheme require full PAS 2035 compliance.

Who needs this

We work with…

  • Retrofit Coordinators needing accredited assessments
  • Housing associations managing retrofit programmes
  • Local authorities delivering ECO4 or grant-funded schemes
  • Registered Social Landlords (RSLs) upgrading housing stock
  • Contractors requiring PAS 2035 sign-off for funded work
  • Private landlords improving EPC ratings for compliance
Our role

Our role in the PAS 2035 process

PAS 2035 involves two key roles — the Retrofit Assessor and the Retrofit Coordinator. Here’s how we fit into the process.

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What we do — Retrofit Assessment

On-site property assessment covering condition, construction, current energy performance, occupancy and any risks. Full documentation produced for the Retrofit Coordinator.

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Also included — Retrofit EPC

An RdSAP energy assessment of the property is part of the Retrofit Assessment process, establishing the current energy rating and informing the improvement pathway.

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Working with Retrofit Coordinators

We work closely alongside Retrofit Coordinators, providing the assessment documentation they need to design and manage the improvement plan. If you need a Coordinator, we can point you in the right direction.

What we deliver

The Retrofit Assessment report

  • On-site property condition assessment
  • RdSAP energy assessment & current EPC
  • Occupancy assessment
  • Identification of risks (damp, condensation, ventilation)
  • Improvement potential summary
  • Full documentation in PAS 2035 required format
  • Lodged on Trustmark data warehouse where required
Volume work welcome

Portfolio & programme assessments

We regularly work on multi-property programmes for housing associations, local authorities and ECO4 delivery partners. If you have a pipeline of properties to assess, we’ll work with you on scheduling, reporting formats and turnaround times to fit your programme.

Get in touch with details of your programme and we’ll come back with a clear picture of capacity and timescales.

Discuss your programme
House undergoing retrofit works
Solar panels on retrofitted homes

The Retrofit Assessment is the essential first step — understanding what a property needs before any work begins. Get it right at the start and the rest of the process is straightforward.

Need PAS 2035 assessments?

Whether it’s one property or a hundred, get in touch and we’ll discuss how we can support your programme.

Get in touch Request a quote
Accreditations & partnerships
TrustMark SafeContractor Elmhurst Better Buildings Consultant ECMK