Think about how much space you need to have cleaned and how deeply you need to have it cleaned. Cleaning carpets is an in-depth process and the amount of work involved can vary widely from house to house. Homes with pet stains or odors in the rug will often require more time and effort to clean.

Carpet cleaning companies use a wide range of chemicals to clean carpets. Some of these chemicals can be dangerous for people with asthma or other respiratory issues. If you are concerned about using chemicals in your home, then you should learn more from the cleaning company. There are many "green" cleaning companies that use organic cleaning solvents instead of the more chemically-laden ones more commonly used.

Make sure that the company you decide to work with is licensed to use the chemicals that they are using in your home. Some chemicals used for cleaning carpets require a special certification for safe handling. This does not mean that the chemicals used for carpet cleaning are inherently dangerous. It simply means that applicators need to be trained in how to safely and properly use them.