Check the types of chemicals and cleaning products that the company uses. Some commercial cleaning companies have gone to "green" types of cleaners and products that are safe for the environment. If this is a concern for you be sure to look for environmentally friendly cleaners when completing your research.

When hiring a commercial cleaning company, find out what their experience is. There are many new companies out there that are great to hire though. How do you know which one is the best choice for you? Don't rely just on what they charge, but give one or two a trial run to find out the quality that they can offer to your company.

Most commercial cleaning companies will specialize in one or more areas. For example, you may need a sanitation expert to handle hospital cleaning needs but you may not need this for cleaning your local office. Select those that have a specialty in your area to get services done right the first time.