Terminology

Resident Liaison Officer (RLO) – Your main contact throughout the works. They’ll keep you updated, arrange access, and help with any questions or concerns.
Retrofit Coordinator (RC) – Oversees the whole retrofit project to make sure it meets PAS standards.
Retrofit Assessor – Visits your home at the start to gather information such as insulation, heating, and ventilation details.
Retrofit Designer – Uses the assessor’s findings to design and detail the improvements to your home.
Retrofit Installer – The qualified tradespeople who carry out the physical works in your home.
Site Manager – Manages daily activity on site and ensures the work is safe, tidy, and completed to a high standard.
Pre Installation Building Inspection (PIBI) – A detailed check of your home before retrofit works begin. It identifies any issues (like damp or repairs) and makes sure the planned improvements are safe and suitable for your property.
PAS 2035 / PAS 2030 – National retrofit standards that make sure all retrofit works are assessed, designed, installed, and checked properly.
Energy Efficiency Measures (EEMs) – The improvements made to save energy, such as insulation, new windows, or ventilation systems.
Fabric First – A retrofit approach that improves your home’s structure (walls, roof, insulation, and windows) before upgrading heating or renewable systems.
Housing Provider – Your landlord, local authority, or housing association responsible for managing your home and overseeing the retrofit programme.
Handover Pack – The information you’ll receive when works are finished, including instructions for new systems, contact details, and warranties.
Energy Performance Certificate (EPC) – A rating that shows how energy efficient your home is, from A (most efficient) to G (least efficient). Retrofit works aim to improve your EPC rating.
Net Zero (NZ) – The national goal to reduce carbon emissions to as close to zero as possible, balancing what we produce with what we remove from the atmosphere. Retrofit works help achieve this.