If you’ve had San Francisco, California flooring contractors install hardwood floors in your home, there are of number of tips you should know before cleaning them. First off, avoid oil-based wax, polish and cleaning substances. Next, don’t use steel wool. Furthermore, it’s best to refrain from using a wet mop on your new hardwood floor installation. San Francisco professionals say this could lead to warping and joint-line separation. Don't use any type of buffing machine. Another good idea is to use protective mats. These will collect the dirt, sand and other substances that can otherwise be tracked into your home and onto your flooring.