About CBG

CBG is an independent practice of mechanical and electrical building services engineers, specialising in sustainability.

Our mechanical & electrical engineers, sustainability consultants and energy assessors create complete building services solutions. If your project requires specialist expertise in specific areas (such as sustainability, BREEAM, M&E, energy assessment and building modelling to name just a few), call on us now and be sure you get the very best advice.


We are committed to buildings services that preserve and - whenever possible - improve the environment. With legislation becoming ever more stringent our team will ensure that overall targets and legal requirements for carbon emissions are not only met but exceeded wherever possible.


Our building services projects have been winning awards since we were founded in 1997. Our culture of quality and innovation is what drives us. We love to learn from each project and take all the innovations with us into the next.

We tackle everything from smallworks for maintenance and modernisation valued under £10k, to major new build, refurbishment, asset maintenance and national programmes valued at over £75million. We work mainly in the South, with offices in Oxford and London but our national projects take us all over the UK. We are independent and wholly owned by our directors who all actively take part in our projects.

We make buildings work, sustainably. Our projects won’t cost the earth.

Company registration number 5384147

VAT number 860 3120 63

CBG Consultants

“Managing public money to maintain and develop our facilities, we need to be confident that our suppliers are giving value for money and delivering effective results. CBG have a solid reputation. They are always focused on the long-term best interests of the force.” 

Maintenance manager, Thames Valley Police Property Services

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Company registration number 5384147  VAT number 860 3120 63