I signed a contract with ADT. They showed up, yanked out my old system, then told me they wouldn't install the new system as we agreed unless I payed for 4-8 hours of labor. I said no and so now I have a hole in my wall form where they yanked out my old system and my old system not working. I've called them on several occassions. They told me they would be out to put back my old system on two occasions but never showed up - just left me sitting there waiting for them - not even a call to say they weren't coming! read full review »