I have been a customer of Truly Nolen for several years. I always assumed their "guarantee" meant that they assumed responsibility for any failure of their rodent protection. However recently the thermostat cable that controlled our air conditioning was damaged by rodents. I called several times and was told that a manager would contact me about the problem. I never received a call and was told by the call agent that such damage would not be covered, even though the guarantee was for the barrier, which obviously failed.