Services
We provide comprehensive contracting for all water construction needs. Our wide range of services includes diving, waterway transport, dredging and excavation, harbor repair and maintenance, and construction work. We specialize in delivering expert and reliable solutions for every area of water construction. Whether it’s harbor refurbishment, foundation work, or demanding professional diving projects, we handle the contract from start to finish.
Diving services
We offer comprehensive professional diving services throughout Finland. Operating nationwide, we ensure that in every project the client can rely on safe and seamless execution of diving operations. Our work is founded on strong expertise and a commitment to safety.
Concrete construction
Unwa Oy operates nationwide as an infrastructure builder specializing in concrete construction, civil engineering, and diving work. We combine decades of experience in demanding projects with a versatile fleet of equipment – delivering work with high quality and on schedule, both above and below water.
Harbor Repairs and Maintenance
We carry out refurbishment projects for marinas in cities and municipalities across Finland. Our services include dock and pontoon repairs, construction of supports and retaining walls. We also perform condition assessments with clear, easy-to-understand reporting.
