We had unstained oak stairs in our 3-storey (plus finished basement) townhouse and needed them stained to match our pre-finished oak floors.
Demetris' quote was not the cheapest, nor was it the most expensive. But this quote covered sanding, staining, and finishing with 3 coats of urethane for the steps, risers, posts and sides. And we have a lot of stairs in the house.
He managed our expectations on how closely the colour would match given the differences in the staining process (rubbed-in for the stairs; sprayed on for the floors) and was concerned that the veneer along the sides might not take the stain evenly.
That said, he did an excellent job colour matching, and the veneer took the stain perfectly. The stairs look great now. And Demetris even cleaned up our basement and vacuumed the stairs to get rid of fine sawdust so that the finish was flawless.