Abru Aluminium was founded on 19 September 1968. It made its step ladders in Launceston, Cornwall on the Pennygillam Estate. In December 1997, the company moved to Derbyshire. Production moved to Maldon, Essex in September 2016. In May 2015 Werner announced plans to close the Derbyshire factory.
On 24 March 1985 Abru Holdings was bought for £618,000 by PC Henderson' who made garage doors.
In May 2010 it was bought by Werner Co. of the USA, the world leader in aluminum ladders.
It is situated in the Amber Valley of Derbyshire, off the A6.
Its products are often sold in DIY stores, such as Homebase.