Coalvi, leaders in the railway sector

Over 40 years of experience

The ones who endorse the quality of the projects carried out by the company.
COALVI, S.A. is the Aldesa Group's company specialized in the construction, repair, conservation and modernization of railway works: track, electrification, tunnels and infrastructure.

The company's main railway activity is maintenance, both on conventional and high-speed tracks. In its more than 40 years of experience, Coalvi has participated in all kinds of railway projects, such as the development of the High-Speed network in Spain, and currently in Mexico with metropolitan line infrastructures, demonstrating the quality of its construction practice and its firm service vocation.

Machinery fleet

The company owns a wide range of specialized heavy and light machinery that are required for the various works on the track


and the catenary: track and switch tamping machines, profilers, stabilizers, gantry cranes for switch replacement, shunting locomotives, railcars and platforms, rail-road trucks, etc.