The quality of air inside your house could become about 10 times unhealthier than the outside air quality if your carpet is not cleaned at regular intervals. A dirty carpet is a haven for disease causing bacteria and other such allergens. Vacuuming your carpet once every week is not enough to get rid of these allergens. You will need to hire the services of a professional carpet cleaner to ensure deep cleaning of your carpet at least once a year.
Due to the collection of dirt, a carpet begins to lose its original glory. Dirt particles can lodge themselves deep inside the carpet and begin to distort the colour and the texture of the fibres. Carpets also tend to get stained due spillages and general household stains. If these stains are cleaned with a strong detergent, it might harm the carpet more than it would if you were cleaning it.