Our guarantee procedure is that we will send technicians to re-clean the area of concern should we be made aware of it within 3 days after the initial cleaning. Should you still be unhappy with the results we will then send our Quality Control personnel to your home. Our Q.C. technician will note all issues and their exact locations. At this time should another reputable carpet cleaning company be able to fix the problem area without damaging or replacing the carpet and/or padding in that area we will again send out the same Q.C. technician. We must see the area and that the stains were removed, once we have inspected the area, should it meet our criteria, we will refund to you the cost that we charged you for that area 100%.