I bought a house that had terrible smelling carpets. Luckily it had hardwood floors underneath that we could get refinished. Once the carpet was removed however we found the pet stains went all the way into the wood floor. In one of the rooms without carpet, the wood was discolored and badly gauged. The installer wasn't sure if all of these stains and flaws could be taken out. But once, he was done we were both amazed. None off the flaws in the wood show. I'm very impressed with the work he did and would recommend Hoosier Hardwood Floors to anyone and everyone!