I used Zachary's Chem-Dry every 6 months to clean the carpets throughout my entire home. The carpets are over 20+ years old and when you have a good company looking after them then it really extends the lifetime of the carpets. They always look so beautiful whenever the cleaning is done. The folks that I have met are always very professional and get to work right away. They are always free to answer all the questions I ask. They really make you feel good about getting your carpet cleaned.