Woller Oy is a company founded in 2019 whose special expertise is the installation of special doors, hatches, windows and exteriors in Finland and overseas. We have solid experience in leading various and exacting steel construction works both in Finland and around the world, for example from the OL3 and FH1 NPP nuclear power plant projects, Ringhals and Forsmark in Sweden.

Our strong expertise enables the implementation of steel assemblies even for demanding projects. Our work description also includes, take care of project entities, from design to installation. It is also possible to order smaller units from us, according to the wishes and needs of you. Our company is dedicated to work according to high safety standards and considering all safety risks. We have at our disposal an extensive subcontractor / cooperation company network in Finland and around the world. We constantly train our staff in various special skills and invest in safety and its development. We have been granted ISO 9001: 2015, ISO 14001: 2015 and ISO 3834-2: 2021 certificates.