菱洋 Company Profile

Founded in 1953, a wealth of achievements and trust cultivated through this history.

Protecting buildings, creating the future. Expanding nationwide with a focus on the Kanto region. Hishiyo Co., Ltd. has been engaged in the manufacturing and sales of heavy-duty anti-corrosion and waterproof coatings, as well as polyurea and ultra-fast curing urethane waterproofing construction for many years. Our quality products and reliable technology have led to the trust we have today. Based on this construction experience, we provide optimal proposals for each site from our extensive knowledge and experience. We offer a comprehensive system from site investigation, meetings, estimates, design, to construction management. With a wide range of construction achievements utilizing the strengths of our products, including polyurea roof insulation methods, factory roofs, parking lot waterproofing methods, rooftop roofs, tanks, sedimentation tanks, water storage tanks, and various equipment within factories, we can propose solutions for not only large facilities but also a diverse range of facilities and equipment based on the experience and achievements we have cultivated in various sites.