Retrofit coordination is the professional management function at the heart of every PAS2035-compliant retrofit project. It is not installation, assessment or design — it is the discipline that brings all of those functions together, ensures they happen in the right sequence, and produces the compliance record that allows funding to be claimed.

Since 2020, retrofit coordination has been mandatory for all funded domestic retrofit projects in the UK. Whether a housing association is installing loft insulation in a single flat or running a multi-year decarbonisation programme across thousands of properties, every project must have an accredited Retrofit Coordinator appointed before any assessment or installation work begins.

What Does a Retrofit Coordinator Actually Do?

The Retrofit Coordinator is the project manager, compliance officer and single point of accountability for a PAS2035 project. The RC's responsibilities span all four stages of the retrofit process:

• Stage 1: Commission the pre-retrofit assessment, review the data, identify non-conformities and issue the Stage 1 advice letter to the resident
• Stage 2: Produce the Improvement Option Evaluation and Medium Term Plan, agree the scope of works with the client, issue Stage 2 advice letters
• Stage 3: Coordinate the retrofit design, review and sign off the designer's specification, confirm the ventilation and overheating strategy, issue Stage 3 advice letters
• Stage 4: Oversee installation, manage non-conformities, sign the claim of compliance, produce the handover pack and complete TrustMark lodgement

Why Is Coordination Required?

Before PAS2035, retrofit projects were frequently delivered by installers working in isolation — installing measures without proper assessment of the building as a whole, without coordination between different trades, and without any structured quality assurance process. The result was inconsistent quality, measures that caused harm (particularly around ventilation and moisture) and no reliable way for housing associations or regulators to verify that work had been done correctly.

PAS2035 created the Retrofit Coordinator role specifically to address these failures. The RC's independence from the installation process is deliberate — they are not employed by the installer and have no financial interest in which measures are selected or how they are installed. This independence is what makes the RC's sign-off meaningful.

RC Accreditation Requirements

To act as a Retrofit Coordinator, an individual must hold the ABBE Level 5 Diploma in Retrofit Coordination and Risk Assessment and be registered with TrustMark as a Retrofit Coordinator. They must also be approved by at least one recognised assessment body — Elmhurst, ECMK, Quidos or Property Tectonics — to access assessment data from that body's assessors.

RC accreditation is held by individuals, not companies. When procuring RC services, it is important to verify that the individual who will be managing your project holds current, valid accreditation — not just that the company claims to offer RC services.

How PASDOC Supports the RC Role

The administrative burden of the RC role — generating documentation, tracking stage progress across multiple properties, maintaining audit trails and managing communications between multiple parties — is one of the main constraints on RC capacity. PASDOC automates the documentation-intensive elements of the role, allowing accredited RCs to manage more projects simultaneously without compromising compliance quality.