The core activity of Donada SA is the provision of services and solutions in the fields of sheet metal work, waterproofing, carpentry and resin applications. Specifically, this includes: Sheet metal work: manufacturing and installation of metal roofing, facade cladding and lightning protection systems; Waterproofing: carrying out sealing work for roofs, terraces and underground structures using modern materials such as bitumen sheets and insulation systems; Carpentry: manufacturing and installation of wooden and metal structures, including roofing and facade cladding; Resin applications: applying resins for sealing terraces and balconies, including visible and walkable surfaces, as well as repair work. The company also offers consulting and planning services for these areas and performs visual inspections and maintenance work.