Flagship in Gipuzkoa for all kind of mortars used in the construction sector.

Calhidro manufactures and sells mortars from its facilities in Altzo.

It belongs to the Calcinor Group and draws on the experience and knowledge of the group in the aggregate and concrete sector in Gipuzkoa, Calhidro was founded in 2001 with the intention and aim of providing our customers with  a more global, flexible and professional service.

Over these years of work in the sector we have worked on developing new products that are adapted to new challenges in construction. We offer an extensive range of products for different applications, such as mortars for masonry, rendering, floor screeds, etc. For manufacturing it uses high quality aggregates from the Group quarries.