This project involved an EnerPHit refurbishment and extension of an existing 3 bedroom bungalow to create more bedroom and living accommodation for a young family. The project involved PHPP Analysis, detailing to minimise thermal bridging and site visits at key stages of the project. The project achieved a very high standard of airtightness, fabric, triple glazed windows, ventilation and thermal bridging performance to deliver thermal comfort for the owners well into the future.