PAS 2035 retrofit consultancy
Retrofit coordination from start to finish.
White Horse Building Consultancy provides Retrofit Coordination under PAS 2035, taking your project from the initial assessment through delivery and evaluation of the completed works.
Led by a qualified Retrofit Coordinator
Swindon, Wiltshire and surrounding areas

Independent coordination
A Retrofit Coordinator for the whole project
A successful retrofit considers the home as a whole. The proposed improvements need to suit its construction and the way it is occupied. Decisions about insulation must also account for ventilation and the condition of the existing building.
WHBC acts as your Retrofit Coordinator, overseeing the process and bringing the project team together around an agreed plan. You have a consistent point of contact for technical decisions, with risks and outstanding actions followed through to completion.
From the first assessment
A clear route through your retrofit.
PAS 2035 provides a framework for improving existing homes through a whole dwelling approach. We manage the coordination throughout, with the right information available at each stage.
About PAS 2035Establish the brief and assessment
Agree what the project should achieve and understand the needs of the occupants. We coordinate the retrofit assessment and review the findings, including the home’s condition and energy performance. This establishes the evidence needed before measures are selected.
Evaluate options and plan improvements
Consider suitable measures and how they work together. We prepare a medium term improvement plan that sets out the sequence of work, including improvements that may follow later. The plan reflects the agreed objectives and available budget.
Coordinate the retrofit design
Bring the assessment findings into the design and coordinate the contributions of the appointed designers. We review how the measures interact, including the ventilation and airtightness strategy, and make sure identified risks are addressed before installation.
Oversee delivery on site
Coordinate with the installation team and plan inspections around the work. We review installation evidence and track issues requiring attention. Proposed changes are checked against the design and intended outcomes so that their wider effects are understood.
Complete the handover
Bring together completion evidence and commissioning information, with outstanding items followed through. We coordinate the handover so the client receives the project records and occupants understand how to operate the new systems.
Monitor and evaluate the results
Coordinate the monitoring and evaluation required for the project and review the results against its intended outcomes. Occupant feedback helps identify whether further investigation or adjustments are needed after the works are complete.
Building surveying expertise
The building details behind the plan
Building condition before improvements
Resolve the causes of damp and identify repairs before they become concealed by new work. The existing construction informs which measures are suitable for the home.
Ventilation and moisture
Consider ventilation alongside insulation and changes to airtightness. We coordinate the review of moisture risks and indoor air quality, with overheating considered as part of the wider design.
Junctions and the order of work
Check how measures meet at window reveals and roof edges. Plan the sequence so that work completed now supports future improvements and avoids unnecessary alterations later.
The people living in the home
Build resident communication and access arrangements into the programme. At handover, occupants need practical guidance on using new systems and maintaining their home.
Project delivery
One home or a housing programme
We work with homeowners and landlords on individual properties. For housing providers and their delivery partners, we can coordinate the technical requirements across a programme of homes.
Talk through your programmeSupport beyond the technical plan
Retrofit Coordination can be combined with our wider project services. We can prepare specifications and support tendering, with contract administration available to help manage the works through delivery.
For housing programmes, we can also support budget reporting and change control. Resident liaison helps the programme work around access needs and the people affected by the improvements.
Evidence for funded schemes
We identify the programme’s documentation requirements at the outset and coordinate the evidence as work progresses. This can include TrustMark documentation and lodgement support where required.
What you receive
A project record you can work with.
An organised record of the project, with the information needed to understand the agreed improvements and how they have been delivered. We define the required documents and responsibilities at the outset, then keep the record up to date as the work progresses.
- The agreed brief and intended outcomes for the home.
- Assessment findings and the evaluation of improvement options.
- A medium term improvement plan setting out the sequence of measures.
- Coordinated design information and a record of changes.
- Inspection findings and the actions needed to resolve them.
- Installation evidence and supporting completion records.
- Handover information with commissioning records where applicable.
- Monitoring and evaluation findings, with any follow up actions.
Questions about this service
Yes. We can act as Retrofit Coordinator from the initial brief through to completion and evaluation. We coordinate the assessment and design inputs, then oversee the retrofit process during installation. Where you also need procurement support or contract administration, these services can be included in the appointment.
Yes. A medium term improvement plan sets out a sequence for the home, including measures to be considered later. This helps work completed now fit with future improvements and allows the programme to reflect the available budget.
Yes. We review the existing information and establish what is needed for the next stage. If a project is already under way, we assess the records and current position before agreeing the coordination arrangements.
Yes. We can support the technical coordination and project reporting required for a funded programme. This includes identifying the applicable evidence requirements and supporting TrustMark documentation and lodgement where required. The scope is agreed around the programme and its delivery arrangements.
Tell us where the project is and whether it covers one home or a wider programme. An outline of the proposed improvements and your intended timetable is enough to start the discussion. Share any existing assessments or designs if they are available.
Read more about PAS 2035 from BSI and TrustMark’s retrofit guidance.
Speak to WHBC
Let’s plan your retrofit project.
Tell us about the property or housing programme and the stage you have reached. We will discuss the coordination you need and prepare a clear scope and quotation.