blhmabbott, we had to do the same thing...the firemarshall had to inspect our home because we were getting a license to be a "group home" for foster kids...we checked into the hardwired smoke detectors and we decided to let a pro do it. We checked into several persons and we decided to let ADT alarm system do it...they installed 8 hardwired dectcors, motion sensors, door alarms, wall panel, and 2 alarm boxes all the work and all hardwired with 12 volt battery backup. We kept the ADT service for about 5 months and then we dropped the service and just have the alarm that is no longer hooked into ADT. The total instalation with all of the listed items cost us about $750. We had a lot of extras though...like the motion sensors, and the extra alarm box. They sometimes run specials and it might be worth checking into. Good luck with your daycare.
Belinda