About Us


Unwa Oy specializes in shoreline and water construction as well as demanding concrete works both underwater and above the surface. We have expertise in challenging construction projects and underwater repairs requiring professional diving – from hydropower plants and industrial structures to municipal and construction company projects.

We deliver reliable, high-quality results from start to finish. Our work is carried out efficiently and promptly, without ever compromising on safety.

Workplace safety is the cornerstone of our operations. We ensure that all qualifications and certifications are always up to date. Our company also holds RALA certification and fully complies with the requirements of the Contractor’s Liability Act.

Customer satisfaction is at the heart of our business, and we are constantly committed to improving it. We want to provide our clients with complete peace of mind – every project is done thoroughly and finished properly, just as promised.

“If we start something, we make sure to finish it properly!”