The only reason someone would attempt treatment on their own is to save money, and this usually leads to bad results. It will, for example, cost much more to replace carpeting that has been damaged beyond repair, and this is possible if soils are allowed to remain for too long, or they aren't adequately removed during the cleaning process.
Without training and certification, a home or business owner may not pick the right detergent to use, or the right equipment. For instance, soils that have become matted in the fibers must be loosened from the fibers before they can be removed-- a process known as suspension. Suspension is normally done with special substances that professionals have access to, and certified carpet cleaning companies such as SERVPRO of Madison, Lawrenceburg and Versailles have multiple suspension agents available, depending on what kind of soil is present.
If someone attempts treatment without suspending the soil, the results will only be superficial, and may make the situation worse in the days to come.
Do-It-Yourselfers often have trouble applying the correct amount of water to the affected area, which can lead to leftover detergent residue, or excess moisture below the surface, providing the perfect breeding ground for MOLD. Home and business owners attempting treatment on their own frequently cause color and odor damage during treatment as well, usually as a result of using unsafe detergent.
Professional, certified treatment provided by SERVPRO professionals is the answer for most, and should be the very first should when dealing with any kind of carpet damage.