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The building valve specialist

Guareski was founded in 1930 by Mr Eminio Guareschi. Up to 1945, it employed around a dozen people, mainly producing valves and fittings for water or gas, together with plumbing accessories for professionals.

During the 1950s and 60s, Guareski expanded considerably and the workforce rose to 120. In 1975, the company diversified and started making cast brass components and die-stamping.

Our own brand-name

In 1995, Guareski began converting aluminium and copper and in 2001, the valves and fittings business was renamed GRK, publishing its own catalogue under this brand-name.

Tournés vers l'avenir

Nous sommes restés fidèles à la Picardie de nos origines et la société Guareski, société Française indépendante, porte haut les couleurs de la Somme et particulièrement celles du bassin industriel historique du Wimeu. Cela ne nous empêche pas de continuer à innover et proposer des produits adaptés aux denières évolutions de nos marchés.