About Us

GREHA was founded to address the growing challenge of water scarcity in Cyprus, Greece, and neighbouring countries, where the need for smarter and more sustainable water management is becoming increasingly urgent.

Our focus is not simply to promote water-saving technology, but to provide practical, efficient, and cost-effective solutions that deliver measurable results. We develop grey water and rainwater reuse systems designed to reduce freshwater consumption, lower operating costs, and meet the needs of homes, hotels, commercial buildings, and industrial facilities.

Every system is engineered according to the specific requirements of each project, combining treatment, storage, automation, monitoring, and controlled redistribution in one complete solution. Through efficient design, responsible manufacturing, and the reduction of unnecessary freshwater consumption, GREHA maintains a low environmental footprint throughout its operations and product philosophy.

GREHA systems are manufactured in Greece, at a production facility belonging to our group. This gives us direct control over engineering, manufacturing quality, customisation, testing, and technical support.

We are constantly developing our products and reserve the right to make changes.

While our core activity is focused on Greece, Cyprus, and the surrounding region, GREHA operates internationally, supplying customers and professional partners worldwide through both retail and wholesale channels.

Our mission is to make water reuse accessible, reliable, and commercially viable across the regions and markets that need it most.

Live Green. Save Blue.