The national house builder account faced the challenge of consistently achieving high Energy Performance Certificate (EPC) ratings across their properties. Previous ratings had fallen short of their desired targets, hampering their ability to meet regulatory requirements and provide energy-efficient homes to customers. They sought our expertise to enhance their building designs and identify areas of improvement.

Our team conducted a thorough consultation to understand the client's existing construction practices and design specifications. We reviewed building materials, insulation techniques, HVAC systems, and overall energy management strategies. By identifying the inefficiencies and areas of improvement, we developed a tailored approach to optimise the client's properties for improved EPC ratings.

To assess the air-tightness and energy efficiency of the buildings, we conducted air pressure testing on a representative sample of properties. This testing involved creating controlled pressure differentials within the building envelope and measuring the resulting air leakage. Through this process, we identified areas of air infiltration and proposed specific remedial measures to address them.

Based on our consultation findings and air pressure testing results, we recommended various energy-efficient upgrades to the client. These included improvements in insulation, sealing of air leakage points, and upgrades to HVAC systems. The client diligently implemented our suggestions across their new construction projects and retrofitted existing properties.

The impact of these measures was remarkable. The client's properties saw significant improvements in EPC ratings, exceeding the national average and achieving high energy efficiency standards. Homeowners and residents benefited from reduced energy consumption, leading to lower utility bills and a reduced carbon footprint. Additionally, the improved EPC ratings enhanced the marketability of the client's properties, attracting environmentally conscious buyers.

Conclusion:

Through consultation and air pressure testing, our client, a national house builder account, successfully achieved high EPC ratings across their properties. Our tailored approach to improving energy efficiency, coupled with the client's commitment to implementing our recommendations, resulted in significant benefits for both homeowners and the environment. This case study serves as a testament to the importance of collaboration and expertise in achieving sustainable and energy-efficient building practices.