How to proceed legally after just finding out the wires to our smoke detectors were cut 3 yrs ago when a burlar alarm was installed.

while having additional smoke detectors installed in dec 2017, we came to find out that ADT had cut in January 2014, while intalling a burlgar alarm system, our existing primary smoke detectors that were wired into the house. The ADT tech who was installing the additional smoke detectors informed me that we had been without ANY smoke alarms for the last 3 years. NO- no one died, NO thank goodness there wasn't a fire.. BUT there has to be some action I can take for this. ADT clearly put my family in DANGER , without our knowledge.. and who knows for how long this could have been the case.? I don't know what law category this would even fall under.