I will agree with LK on this one. You may be taking on liabilities that you are unaware of.
We buy our Fire Alarm equipment from a certified F/A company.
They provide all tech support, the devices and review the existing systems, create the plans for the new work, and certify the system when completed.Not too mention we must have the plans signed off on by the local Fire Marshal.
If he gets a good mentor to work with, he should be ok, but the remod's are the problem jobs, yes the city inspector will want the signed plans, for any additions or changes, the horns can be a problem, in old work.
