Liability

Manufacturers and manufacturer reps spray their magic protection over new upholstery and make big bucks doing so. People pay much more at the time of purchase for protection than they generally would pay you a year or so later. Most purchase on the strength of a warranty. It becomes a numbers game. Some you lose most you win. Plus its hard to read the fine print in the contact.

These people generally do well.

  We just finished a cleaning a sofa with numerous kool-aid stains on it.
This sofa had a protector applied by the manufacturer. I kind of think the custy had already worked on the stains herself, but this was not mentioned.
After a lengthy time working on the stains we had to give up, they just would not come out. The custy had us sign paper work so she could send to the manufacturer for sofa replacement.
  We currently do not offer fabric protectors for this reason. I guess the question is --if we apply it--do we guarantee it