If your home wood flooring has worn out and look shabby, you can give it an updated look with the help of re-finishing. You can try to do it by yourself with the help of a sender, but remember that it is difficult to control the device and if not properly handled, it may significantly damage underfoot. Another difficulty you may face is the process of applying the urethane or polyurethane finish. They are difficult to use and may cause fumes. If you prefer not to face risks, just contact the professional and your finished oak flooring will look like new without any risks, but be ready to spend more money.