About Us

 

Since 2012 NetZero has been providing an array of Energy Efficiency services relating to BER certification, Part L compliance and energy upgrades for both commercial and residential buildings. They work with the Construction Sector, private home owners and also provide BER certificates for property sales and rentals.  

NetZero’s reputation in the industry is based on their commitment to detail, their ability to quickly identify the optimal solution whatever the imperatives, and the ease with which they work with other members of the project team. 

With backgrounds in both architecture and engineering, NetZero’s senior personnel are passionate about the work they do improving energy efficiency whether for a new build or in a retrofit. They understand how each element of the build affects another and this enables them to achieve high energy ratings at the lowest possible cost. 

  •  SEAI registered Residential BER Assessors

  • SEAI Registered Commercial BER Assessors

  • SEAI Registered Technical Advisors

  • Members of the Irish Green Building Council (IGBC)

  • Registered Home Performance Index Assessors (HPI)

 

Brian Byrne

Managing Director

Brian Byrne-Net Zero

Brian Byrne, the founder of Net Zero graduated from Trinity College Dublin with a BAI in Mechanical Engineering and a BA in Mathematics. He then went on to graduate from the Dublin Institute of Technology with first class honours in an MSc in Business and Entrepreneurship and was awarded the gold medal for achieving the highest overall grade.

Subsequently, Brian worked with a company specialising in commercial BER certificates, gaining extensive experience in the energy rating industry as well as in the production of land registry compliant maps before setting up Net Zero in 2012. Brian has been specialising primarily in commercial BER certificates and new build residential developments since 2009. This unparalleled experience means that Brian can carry out energy assessments promptly, efficiently and accurately.

In addition to producing BER certificates, Brian advises architects and engineers on ensuring their designs meet the energy requirements of the building regulations. He also carries out detailed energy audits for homeowners and advises them on energy upgrades and the grants available for these.

Brian is registered with the Sustainable Energy Authority of Ireland (SEAI) to carry out both domestic and non-domestic energy assessments as well as technical assessments.

Richard de Courcy

Richard de Courcy-Net Zero

Richard de Courcy joined Net Zero in June 2025. He graduated from Trinity College Dublin with an MAI and BAI in Mechanical Engineering and a BA in Mathematics.

Before joining Net Zero, Richard held a range of technical and commercial roles spanning software, hardware, and industrial automation. In his previous role as Technical Lead, he was responsible for developing a sustainable manufacturing site designed to achieve net-zero energy goals. This experience built upon a career spent working at the intersection of technology, process optimisation, and energy efficiency, providing a strong foundation for his work in the built environment.

At Net Zero, Richard focuses on delivering accurate and efficient energy assessments for both residential and commercial buildings. He is qualiified to carry out domestic and non-domestic Building Energy Ratings (BERs).