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Six Cylinder is a specialist consultancy in building performance, based in London and Glasgow. We have a passion for improving the environmental and energy performance of buildings, and we love helping design teams achieve their sustainability goals.

We’re like crash-test engineers, but for low-energy buildings

Six Cylinder provides robust feedback on the in-use performance of buildings and estates. We help to close feedback loops on what works, what doesn’t, and help to improve the design, construction and operation of low-energy buildings.

We provide a range of services that span the entire delivery and operation of new and retrofit buildings, low-energy buildings, including:






Six Cylinder Limited is registered in England and Wales, Company no. 08107402