True efficiency transformation requires the Whole-House Retrofit approach, strictly governed by PAS 2035. A partial upgrade poses severe risks, such as introducing interstitial condensation and mould due to changes in a building's thermal envelope and vapor permeability. Smart Energi Hub follows the five-step process:
1. Assessment (via a Retrofit Coordinator)
2. Design (creating an optimal plan)
3. Installation (certified workmanship)
4. Handover (educating occupants on new systems)
5. Evaluation. This rigorous methodology prevents unintended consequences, ensures the longevity of the measures, and provides the necessary assurance for securing high-value grant funding and long-term asset protection.