Primostar

Primostar – We Optimize Your Below-Grade Waterproofing Solution Up to 10X Greener Primostar is the Baltic reference point for waterproofing below-grade reinforced concrete structures. Our solutions are designed for professional builders – from procurement specialists and project managers to site managers and architects – ensuring that every structure remains watertight and compliant with international standards. With 25+ years of experience, we have become trusted experts in both traditional membrane waterproofing and modern membrane-free integral systems, also known as the “white tank” solution. This expertise enables us to analyze each project in detail and deliver the most efficient and durable waterproofing strategy. Over the years, we have partnered with leading general contractors across the Baltics, helping them save time, reduce costs, and secure long-lasting results. Today, we operate in Estonia, Latvia, Lithuania, and Sweden with the aim of expanding our knowledge to new markets. At Primostar, our mission is simple: to provide waterproofing solutions that truly work – and last.