About Us

CIBSE Certification Limited, a wholly owned subsidiary of the Chartered Institution of Building Services Engineers (CIBSE), is the Building Environment Certification Body for those committed to achieving Better Performing Buildings, Decarbonisation, Energy Conservation, Safety, Health and Wellbeing.

We support the charitable activities of CIBSE and help organisations meet their regulatory obligations, business objectives and operational improvements via our certification activities. e.g. Competent persons and management systems certification, embodied carbon verification and NABERS Building ratings schemes.

Profits are used to expand our services in response to Industry demands or gift aided to support CIBSE's charitable mission. 

Why choose CIBSE Certification?

Our expertise across the built environment is based on solid sector experience and knowledge, and our website is a recognised resource for consultants, specialists, users of these services, and certified building ratings.

We offer technical and software support, promotion of our assessors, consultants, management system specialists, competitive rates for lodgements, international recognition, and quality assurance for members of our personnel schemes.

Our register of certified building performance ratings is ideal for those looking to promote their building performance ratings and stakeholders to verify these claims.

Our management system certification services are delivered via a team of sector experts who  deliver value added and robust audits. 

Our Certification Services

Management Systems
We offer ISO 9001, ISO 14001, ISO 45001 and ISO 50001 management certification, see More about Management Systems service

We offer competent personnel schemes for Low Carbon Consultants, Low Carbon Energy Assessors, ESOS Lead Assessors, Heat Networks Consultants, Management System Specialists and NABERS Assessors, see more about our Personnel Schemes.


As NABERS UK administrator we offer Design for Performance, Energy for Office Certified Performance Ratings and Training services, see more about the NABERS scheme.

Embodied Carbon Verification  
We offer an Embodied Carbon Verification (ECV) scheme based on the methodology published by CIBSE in TM65 providing verified assurance of manufacturers' embodied carbon claims.

This service is evolving in response to demands for independent and credible verification of embodied carbon claims. Interested parties use these verified claims to make decisions on product specifications in the built environment, see more about our Embodied Verification Scheme.