The essential first step before any energy improvement work.
A PAS 2035-compliant retrofit assessment gives you the full picture of your property’s energy performance — and the foundation for any improvement work, funding application, or retrofit project.
What is a retrofit assessment?
A retrofit assessment is a thorough, whole-dwelling evaluation of a property’s energy performance, condition, and suitability for improvement works. It goes significantly further than a standard EPC — examining the building fabric, ventilation, heating systems, occupancy patterns, and any existing defects that could affect the safety or effectiveness of retrofit measures.
The assessment is carried out in accordance with PAS 2035 — the national standard that governs domestic retrofit in the UK. It produces a detailed report that forms the basis for any subsequent retrofit design, funding application, or improvement programme.
When do you need a retrofit assessment?
A retrofit assessment is required in a number of situations:
Government-funded energy improvement schemes — A PAS 2035-compliant retrofit assessment is a mandatory requirement for all work carried out under government funding programmes such as the Warm Homes Grant.
Before planning significant energy improvements — Even outside of grant-funded work, a retrofit assessment is the sensible starting point for any homeowner planning insulation, heating upgrades, or other energy efficiency measures.
Supporting contractors to achieve compliance — Installers and contractors working under PAS 2030 accreditation need a compliant retrofit assessment to underpin their installation work.
What does a retrofit assessment cover?
A full PAS 2035 retrofit assessment includes:
Occupant assessment — understanding how the property is used, who lives there, and any specific needs or vulnerabilities.
Condition survey — identifying existing defects, damp, or structural issues that could affect retrofit measures.
Energy report — a detailed analysis of the property’s current energy performance and potential improvements.
Ventilation assessment — evaluating existing ventilation provision and the implications of making the building more airtight.
Heritage and construction assessment — particularly relevant for older or non-standard properties common across Devon.
Why choose Norley Energy Services for your retrofit assessment?
Accredited by ECMK and Elmhurst Energy
Every retrofit assessment we carry out is TrustMark registered, independently quality-assured and fully compliant with PAS 2035.
MSc in Building Surveying and BEng in Buiding Services Engineering
A technical foundation that goes well beyond the minimum requirements for retrofit assessment work.
Need a retrofit assessment in Devon?
Get in touch to discuss your property and we’ll talk through what the assessment involves and what it will cover.