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Skills that raise your rate

• Large-format porcelain and slab

  Tiles and slabs the size of a door. Hard to handle, in demand, and paid accordingly.

• Natural stone and marble

  Expensive material, so builders pay for someone who will not waste it.

• Waterproofing systems

  Shower membranes and shower pans. A failed shower is the most common callback, so this skill is valued.

• Terrazzo and mosaic

  Lobbies, transit stations and restoration work.