- Checks and puts on diving suit and equipment and descends underwater to carry out construction, maintenance and repair tasks on sites such as oil rigs, harbours, bridges etc.
- Erects and repairs fencing.
- Maintains and repairs steeples, industrial chimneys and other high structures, and installs and replaces lightning conductors.
- Installs plumbing fixtures, woodwork structures and fittings, and sets glass in frames.
- Pours and levels concrete, prepares surfaces for painting and plastering, and mixes and applies plaster and paint.
- Lays bricks, tiles and building blocks to construct, repair and decorate buildings.
- Selects, measures and cuts steel bars, rods and wire to required lengths, positions and fixes reinforcements into position and tensions as required using hydraulic jacks.