How can I tell if soda blasting was really done?
attic rafters


soot and smoke removal

underside of first floor from basement on suite after cleaning

basement on suite before cleaning finished

They definitely did not soda blast the wood  they simply painted it over. this reply  is a bit late but i think your insurance company would still like to know that they as well as you were defrauded by  said contractor. and it may still be possible to  have them  return the money amount that was supposedly  the cost of said falsified work they did. soda blasted wood  has a almost glass like smoothness to it this ultra smooth surface finish will be reflected in the overcoat. it will be a smooth almost gloss enamel finish if done right.