Under the terms of the arrangement, A.E Williams & Son will benefit from pooled mileage, and KeyFleets will return 50% of any maintenance under-spend and 50% of any profit at disposal.
KeyFleets will also supply accident management, European breakdown cover, and the AllStar fuel card, while giving A.E. Williams access to its flexible Mini Lease programme.
David Hodgson, director at A.E Williams & Son, said: 'We felt out of touch with our previous fleet suppliers. KeyFleets' regional office structure provides us with a regular and local point of contact and the Mini Lease contract gives us the flexibility we so vitally need in the construction industry.'