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Retrofit Design, Coordination & Lodgement, delivered with technical control.

ECOedge acts as a practical, technically rigorous partner for councils, housing providers, landlords, installers, managing agents and private clients requiring PAS 2035:2023 Retrofit Design, Coordination and TrustMark lodgement support.

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PAS 2035:2023 Retrofit Coordination

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Retrofit Design packs and technical review

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IOEs, MTIPs and whole-home planning

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TrustMark lodgement and evidence control

A complete PAS 2035:2023 service, from assessment review to lodgement.

Assessment review and triage

Reviewing Retrofit Assessments for completeness, accuracy and suitability, including property construction, condition, occupancy, ventilation, heating, proposed measures, photographic evidence, constraints and resident intended outcomes.

Risk identification

Identifying risks that could affect compliance, suitability or delivery, including damp and mould, ventilation adequacy, overheating, thermal bridging, moisture movement, airtightness, statutory approvals, access constraints and measure interaction.

Improvement Option Evaluations

Producing property-specific IOEs that consider measure suitability, resident comfort, fuel poverty impact, energy and carbon benefit, technical risk, sequencing, funding constraints, value for money and PAS 2035:2023 requirements.

Medium-Term Improvement Plans

Creating practical phased improvement pathways, showing what can be delivered now, what may be suitable in future, how measures depend on each other, and which risks or surveys should be resolved before further works proceed.

Retrofit Design packs

Preparing clear, installer-facing design information, including confirmed scope of works, measure-specific requirements, ventilation requirements, sequencing notes, risk notes, product considerations, drawings or annotated plans where required.

Evidence, handover and lodgement support

Setting out evidence and handover requirements early, reviewing completion information, checking photographic records, certificates and declarations, and supporting quality assurance, TrustMark lodgement readiness and completion documentation.

Our delivery process.

Our process is designed to keep retrofit projects moving from assessment to lodgement with clear technical control at every stage. We identify risks early, turn assessment information into practical design outputs, support installers during delivery and maintain the evidence trail needed for compliant completion.

1

Receive and triage

Log the property, review the Retrofit Assessment, check whether the information is complete and identify any blockers, missing evidence or early risks.

2

Technical review

Review construction, condition, ventilation, moisture risk, overheating, heating suitability, resident needs, statutory constraints and measure interaction.

3

IOE and MTIP

Prepare property-specific recommendations and a phased improvement pathway, considering funding, technical risk, resident comfort, sequencing and value for money.

4

Agree measures

Support the client in confirming the measure package, reviewing funding limits, resident preferences, property constraints and overall technical suitability.

5

Design pack

Produce proportionate Retrofit Design information, including scope, specifications, ventilation requirements, sequencing notes, risk items and installer guidance.

6

Coordination QA

Review the design against PAS 2035:2023, the assessment, agreed measures, ventilation requirements, resident outcomes and delivery risks before issue.

7

Installer support

Provide design handover, respond to site queries, clarify evidence requirements, review changes and help prevent informal design drift during delivery.

8

Evidence and lodgement

Review handover documents, photographs, certificates, declarations and commissioning records to support QA, completion certification and TrustMark lodgement readiness.

Designed to be practical, not just compliant.

PAS 2035:2023 compliance is the baseline. ECOedge’s design approach is built around producing outputs that are technically robust, auditable and useful to the people responsible for delivering the works on site.

We do not simply produce generic measure schedules or compliance-only documentation. Our role is to translate assessment findings, resident needs, property risks and agreed measures into clear information that supports real-world delivery.

Where required, our Retrofit Design packs can include annotated plans, technical notes, measure-specific requirements, thermal bridge mitigation, ventilation requirements, sequencing notes, installer-facing guidance, evidence checklists and handover requirements.

This practical design focus is strengthened by in-house architectural capability, allowing ECOedge to provide clearer drawings, specifications and technical design notes where projects require more than standard coordination documentation.

Programme visibility and digital control.

Retrofit programmes need clear visibility. ECOedge uses live tracking, structured property files, RAG-rated reporting, document control, version control, evidence trackers and action logs so clients can see what has been done, what is outstanding, who owns the next action and which projects are ready for lodgement.

Every property has a clear digital record. Every action has an owner. Every document is traceable. You have visibility at all times.

Who we support.

ECOedge works with organisations and individuals who need retrofit projects to be practical, compliant and deliverable. Whether you are managing a funded programme, coordinating works across a housing portfolio, supporting installers on live projects or planning improvements to a single home, we provide the design, coordination, evidence and lodgement support needed to move projects forward with confidence.

Councils and local authorities

For Warm Homes and other funding schemes, as well as privately funded housing retrofit programmes requiring PAS 2035:2023 design, coordination, installer support, evidence control and TrustMark lodgement.

Housing providers and housing associations

For planned investment, housing decarbonisation and multi-measure programmes needing property-level assessment review, design packs, risk management, delivery-stage support and lodgement readiness.

Installers and main contractors

For delivery teams needing clear Retrofit Design packs, measure requirements, sequencing notes, evidence checklists, site query support, design change control and completion documentation.

Landlords, managing agents and asset owners

For compliant retrofit planning, improvement pathways, portfolio-level risk review and practical design support across individual homes, rented properties or wider asset programmes.

Private homeowners

For whole-home retrofit planning, improvement options, design-led decision-making and practical support to improve comfort, efficiency, ventilation and long-term home performance.

Need Retrofit Design or Coordination support?

Speak to ECOedge about PAS 2035:2023 design, coordination, evidence control and TrustMark lodgement support for your project or programme.

Get in touch today

Technical confidence from assessment to lodgement.

ECOedge brings together accredited Retrofit Coordination, practical design capability, evidence control and programme-level delivery experience. Our role is to give clients confidence that each property is reviewed properly, designed clearly, supported during delivery and progressed towards compliant completion.

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Accredited Retrofit Coordinators

ECOedge’s team includes accredited Retrofit Coordinators with ecmk and Elmhurst accreditation, providing qualified oversight across PAS 2035:2023 design, coordination and TrustMark lodgement activity.

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A technical “critical friend”

We do not simply process documentation. We review assessment information, identify risks, challenge weak assumptions and help clients make informed decisions before issues become delivery or compliance problems.

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Strong PAS 2035:2023 process control

Our delivery model is built around assessment triage, risk identification, IOEs, MTIPs, Retrofit Design, installer support, evidence tracking, quality assurance and lodgement readiness.

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In-house design capability

In-house architectural expertise supports clearer design outputs, annotated plans, specifications, technical notes and installer-facing information where projects require more than standard coordination documentation.

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Experience at scale

ECOedge has supported over 1,500 homes through PAS 2035:2023-compliant retrofit services across local authority, housing provider, grant-funded and privately funded retrofit programmes.

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Evidence and lodgement discipline

Evidence requirements, design handover, installer clarification, photographic evidence review, handover documentation, completion checks and TrustMark lodgement support are built into our process.

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Programme visibility

Live trackers, property-level records, RAG reporting, action logs and document control help clients see what has been completed, what is outstanding and who owns the next action.

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Resident-focused technical judgement

We consider the property and the household together, including damp and mould risk, ventilation, overheating, comfort, heating controls, disruption, usability and long-term performance.

Clear outputs that move retrofit projects forward.

Our role is to give clients practical, auditable information they can use to make decisions, instruct works, manage risk and progress projects towards compliant completion. Outputs are tailored to the property, the client’s programme and the level of design, coordination and evidence control required.

Assessment and decision support

  • Retrofit Assessment review notes
  • Information gap and exception schedules
  • Risk, constraints and suitability notes
  • Measure suitability and sequencing advice

PAS 2035:2023 coordination outputs

  • Improvement Option Evaluations
  • Medium-Term Improvement Plans
  • Whole-home improvement plans
  • Coordination review and QA notes

Design and installer information

  • Retrofit Design packs
  • Annotated plans, specifications and technical notes
  • Ventilation strategies and handover requirements
  • Sequencing, interface and installer guidance notes

Evidence and programme control

  • Evidence checklists and completion review notes
  • TrustMark lodgement support and completion documentation
  • Programme trackers, action logs and RAG status reporting
  • Document control and lodgement readiness checks

Need Retrofit Design or Coordination support?

Whether you are managing a funded retrofit programme, supporting installation delivery or planning improvements to a single home, ECOedge can provide the PAS 2035:2023 design, coordination, evidence and lodgement support needed to move the project forward.

Discuss Retrofit Design & Coordination
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