By Gene and
The best way to find a professional floor sander and refinisher is to see his work in a house and get a direct referral from someone you trust. Since that's the ideal and not the norm, it's a good bet asking for a reference at a local flooring retailer. Often the same place that sells vinyl, tile and wood flooring can also suggest a professional who does sanding and refinishing. The Yellow Pages is the standard reference source, and it's the easiest way find numbers of professional contractors. You'll also find a floor sander and refinisher online by typing "floor sander and refinisher in (your town)" in a search engine. Expect to pay $20 to $30, the national average hourly rate for a fence builder.
Compare the cost of doing it yourself with hiring a contractor:
Refinish a Hardwood Floor
Restore a Hardwood Floor