FES Group delivers services for energy performance, airtightness, and acoustics across the project lifecycle

Founded in 2007 in York, United Kingdom, FES Group is a construction compliance consultancy supporting developers, housebuilders, and contractors in delivering safe, sustainable, and high-performing buildings.

The company provides a seamless and cost-efficient path to compliance, combining consultancy and testing services across Part L and Part O, including energy modelling, SAP and SBEM calculations, EPCs, as well as airtightness and acoustic testing.

Operating nationally from York, London, and Edinburgh, FES Group works with many of the UK’s leading construction companies, as well as architects, consultants, and planners. Its approach is built on trust, flexibility, and efficiency – enabling clients to manage compliance through one expert partner across the full project lifecycle.

As part of CERTANIA’s Buildings & Infrastructure activities, FES Group strengthens capabilities in energy compliance, building performance, and testing services in the UK.