My carpenter tore out our old carpet staircase and rebuilt a new one. He's just about to put the iron balusters on but I just noticed, he didn't place moulding (lip) where the tread and the riser meet. On pics of his work, all of the other staircases he built had the mouldings. I want the mouldings. I believe he did not put them because he was upset about a column he built that I didn't like and he tore it down and re did it to the way that I liked it. Now that the staining and painting is done, is it going to be much work involved to place the mouldings on each tread? Please give some advice