LAST EDITED ON 07-30-21 AT 02:46 AM (EST)

I live in an area where the CCTV cameras are provided and operated by a common team selected by all the residents. As we don't prefer outsiders to home, there is no need to surveil our indoors. However, we are thinking of getting a fire alarm system installation as our house was exposed to a fire accident due to a short circuit. Due to the epidemic, our apartment owner is not financially capable of providing the same, which is why we pay to buy the same.
We have been researching to find the best fire alarm system and unexpectedly got in touch with a company that provides an entire home security system at an acceptable cost. It includes CCTV cameras, monitors, recorders, advanced door locks, motion detectors, infrared safety systems, fire alarms, etc. As I mentioned earlier, our outdoor and backyard is being surveilled by our common security cameras, so does it seem to be a bad idea if we buy a combo package like this?
PS: We won't be getting the package at the promised price if we excluded any of the facilities the manufacturer provided. If we excluded the CCTV option, we might have to pay more to get the fire alarm set up.
Any insight?